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line:xlsx:hash://sha256/181a039844a33e66a35a457b7ece741051086608e425a040051b79581d606b97!/Sheet1!/L811	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet	Myotis albescens	Myotis albescens	Myotis albescens	Myotis albescens	Myotis albescens	Myotis albescens	Myotis albescens	Myotis albescens	Myotis albescens	Myotis albescens	Myotis albescens	Myotis albescens	Myotis albescens	Myotis albescens	Myotis albescens		[MSW2] Subgenus Leuconoe. Includes argentatus; see LaVal (1973fl:25).; [MSW3] Includes argentatus; see LaVal (1973a). Reviewed in part by López-González et al. (2001). Does not include aenobarbus, which is here placed in Nycticeius following Carter and Dolan (1978); also see Husson (1962). Although I follow Koopman (1993) in listing isidori as a synonym, there are serious problems with idenfication of the holotype; see Carter and Dolan (1978), who suggested that this name might actually belong in Pipistrellus. Does not include mundus; see LaVal (1973a). Apparently closely related to nigricans, levis, and oxyotus; see Ruedi and Mayer (2001).; [HMW] Vespertilio albescens E. Geoffroy Saint-Hilaire, 1806 , “ Paraguay .” Based on neotype selection,restricted by R. K. LaVal in 1973 to “Yaguaron, Paraguari , Paraguay .” Subgenus Pizonyx; albescens species group. Monotypic.; [batnames2022] Includes argentatus ; see LaVal (1973 a ). Includes punensis ; see Moratelli and Wilson (2011).  Reviewed inpart by López-González et al. (2001). Does not include aenobarbus , which is here placed in Nycticeius following Carter andDolan (1978); also see Husson (1962). Although I follow Koopman (1993) in listing isidori as a synonym, there are serious problemswith idenfication of the holotype; see Carter and Dolan (1978), who suggested that this name might actually belong in Pipistrellus .Does not include mundus ; see LaVal (1973 a ). Apparently closely related to nigricans , levis , and oxyotus ; see Ruedi and Mayer (2001).; [IUCN] Apparently closely related to nigricans , levis , and oxyotus .; [batnames2023] Includes argentatus ; see LaVal (1973 a ). Includes punensis ; see Moratelli and Wilson (2011).  Reviewed inpart by López-González et al. (2001). Does not include aenobarbus , which is here placed in Nycticeius following Carter andDolan (1978); also see Husson (1962). Although I follow Koopman (1993) in listing isidori as a synonym, there are serious problemswith idenfication of the holotype; see Carter and Dolan (1978), who suggested that this name might actually belong in Pipistrellus .Does not include mundus ; see LaVal (1973 a ). Apparently closely related to nigricans , levis , and oxyotus ; see Ruedi and Mayer (2001).; [batnames2025_1.7] Includes argentatus; see LaVal (1973a). Includes punensis; see Moratelli and Wilson (2011).  Reviewed inpart by López-González et al. (2001). Does not include aenobarbus, which is here placed in Nycticeius following Carter andDolan (1978); also see Husson (1962). Although I follow Koopman (1993) in listing isidori as a synonym, there are serious problemswith idenfication of the holotype; see Carter and Dolan (1978), who suggested that this name might actually belong in Pipistrellus.Does not include mundus; see LaVal (1973a). Apparently closely related to nigricans, levis, and oxyotus; see Ruedi and Mayer (2001).				argentatus		aenobarbus, argentatus, arsinoe, isidori, leucogaster, mundus.			argentatus, isidori, leucogaster			albescens 	albescens - argentatus, isidori, leucogaster	albescens, leucogaster, punensis	Apparently closely related to nigricans , levis , and oxyotus .	albescens 	albescens - argentatus, isidori, leucogaster, punensis	albescens, leucogaster, punensis 	albescens, leucogaster, punensis, argentatus	albescens 	albescens - argentatus, isidori, leucogaster	albescens (É. Geoffroy Saint-Hilaire, 1806)|leucogaster (H. R. Schinz, 1821)|punensis J. A. Allen, 1914|argentatus Dalquest & E. R. Hall, 1947		Corbet, G.B. and Hill, J.E. 1980. A World List of Mammalian Species. British Museum (Natural History), London, 226 pp.	Paraguay myotis	S Mexico – Paraguay, Uruguay	Honacki, J.H., Kinman, K.E. and Koeppl, J.W. 1982. Mammal Species of the World: A Taxonomic and Geographic Reference. Allen Press, Lawrence, 694 pp.	Myotis albescens	Paraguay, Paraguari, Yaguaron (of neotype).	E. Geoffroy	1806	Ann. Mus. Hist. Nat. Paris, 8:204.	Distribution: Ranging from southern Mexico to central Argentina but west of the Andes not south of Ecuador.		Corbet, G.B. and Hill, J.E. 1991. A World List of Mammalian Species. Third edition. Oxford University Press, London, 243 pp. ISBN 0-19-854017-5	Silver-tipped myotis	S Mexico – N Argentina, Uruguay	Koopman, K.F. 1993. Order Chiroptera. Pp. 137–242 in Wilson, D.E. and Reeder, D.M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference. Second edition. Smithsonian Institution Press, Washington, 1206 pp.	E. Geoffrey	1806	Ann. Mus. Hist. Nat. Paris, 8:204.	Subgenus Leuconoe. Includes argentatus; see LaVal (1973fl:25).	S Veracruz (Mexico) to Uruguay and N Argentina.	Paraguay, Paraguari, Yaguaron (of neotype).		E. GEOFFROY	1806	Size fairly small (forearm length 33-39 mm; condylobasal length, 12-14 mm). Margin of uropatagium usually with a poorly developed fringe of hair. Rostrum fairly slender. Middle upper premolar in toothrow. Fur whitetipped.	Distribution: Ranging from southern Mexico to central Argentina but west of the Andes not south of Ecuador.	No subspecies are currently recognized.		108	species	M. albescens	E. GEOFFROY	1806	Leuconoe	subgenus	Myotis albescens				Size fairly small (forearm length 33-39 mm; condylobasal length, 12-14 mm). Margin of uropatagium usually with a poorly developed fringe of hair. Rostrum fairly slender. Middle upper premolar in toothrow. Fur whitetipped.	No subspecies are currently recognized.		76. M. albescens (E. GEOFFROY 1806) [albescens group].	76	NA			Don E. Wilson & DeeAnn M. Reeder (editors). 2005. Mammal Species of the World. A Taxonomic and Geographic Reference (3rd ed), Johns Hopkins University Press, 2,142 pp. (Available from Johns Hopkins University Press, 1-800-537-5487 or (410) 516-6900, or at http://www.press.jhu.edu).	CHIROPTERA	Vespertilionidae	Myotinae		Myotis albescens	Myotis		albescens	E. Geoffroy	y	1806		Ann. Mus. Natn. Hist. Nat. Paris	8		204		Silver-tipped Myotis	Paraguay, Paraguari, Yaguaron (of neotype).	S Veracruz (Mexico), Guatemala, Honduras, Nicaragua, Panama, Colombia, Venezuela, Guyana, Surinam, Equador, Peru, Brazil, Uruguay, N Argentina, Paraguay, and Bolivia.	IUCN 2003 and IUCN/SSC Action Plan (2001) – Lower Risk (lc).	argentatus Dalquest and Hall, 1947; isidori D’Orbigny and Gervais, 1847; leucogaster Schinz, 1821.	Includes argentatus; see LaVal (1973a). Reviewed in part by López-González et al. (2001). Does not include aenobarbus, which is here placed in Nycticeius following Carter and Dolan (1978); also see Husson (1962). Although I follow Koopman (1993) in listing isidori as a synonym, there are serious problems with idenfication of the holotype; see Carter and Dolan (1978), who suggested that this name might actually belong in Pipistrellus. Does not include mundus; see LaVal (1973a). Apparently closely related to nigricans, levis, and oxyotus; see Ruedi and Mayer (2001).	4C3D87E8FF496AF7FF3C9ACC1C93B9F5	Handbook of the Mammals of the World – Volume 9 Bats, Barcelona: Lynx Edicions	978-84-16728-19-0	hbmw_9_Vespertilionidae_716.pdf.imf	hash://md5/b004ff90fffb6a44fffc96591e00bb32	940	zip:hash://sha256/ec5fd314a06aba1a7b0b72f23e54ac625ae272bd98f82f1d01f4c09627d9e8e0!/treatments-xml-main/data/4C/3D/87/4C3D87E8FF496AF7FF3C9ACC1C93B9F5.xml	Myotis albescens	Vespertilionidae	Myotis	albescens		1806	Murin poudré @fr | Silberspitzen-Mausohr @de | Ratonero cenizo @es	Vespertilio albescens E. Geoffroy Saint-Hilaire, 1806 , “ Paraguay .” Based on neotype selection,restricted by R. K. LaVal in 1973 to “Yaguaron, Paraguari , Paraguay .” Subgenus Pizonyx; albescens species group. Monotypic.	Widely distributed in Neotropics, from S Veracruz in Mexico, S through Central and South America to Peru , Bolivia , S Brazil , Paraguay , Uruguay , and N Argentina .	Head-body c¢. 46— 49 mm , tall 35-46 mm , ear 9-14 mm , hindfoot 6-9 mm , forearm 32-2-39- 5 mm ; weight 4-8 g . South American populations show a trend toward increasing size southward. Fur is silky and long (dorsal fur 4-9 mm ; ventral fur 3-8 mm ). Dorsal hairs are bicolored, with dark brown bases and antique brown tips (one-fifth of total length), giving golden appearance; yellowish tips are less evident in a few specimens, in which dorsal fur can be nearly unicolored. Ventral hairs are strongly bicolored, with dark brown bases and generally white tips (one-third the length), giving frosted appearance; ventral fur often becomes progressively paler (whiter) from upper thorax to pelvic region. Ears are comparatively short, extending forward halfway from eye to nostril. Antitragal notch is barely evident. Tragus is long and slender, tapering slightly at tip. Membranes vary from cinnamon-brown to mummy brown; in some individuals, wing membrane has translucent brown appearance. Plagiopatagium is attached to feet by a broad band of membrane; fringe of hairs along trailing edge of uropatagium is present; and upper and lower surfaces of uropatagium are barely covered with hairs. Skull is moderate in size (greatest length of skull 13-1-15- 2 mm ); parietal is normally inclined forward; occipital region is generally rounded posteriorly; braincase is globose; sagittal crest is generally absent, but when present,it is very low; lambdoidal crests are generally present, with low to medium development; forehead slopeslittle; rostrum is narrow relative to braincase; postorbital constriction is great relative to width of braincase. P° is generally aligned with P* and is visible in profile; hypocone on M' and M? is absent or poorly developed. Bacula is large, and individual variation is mostly in depth, not shape. Bacular measurements are length 0-85-0-90, depth 0-30-0-41, and width 0-37-0-50. Chromosomal complement has 2n = 44 and FN = 50, with four metacentric pairs and 17 acrocentric pairs of autosomes. X- and Y-chromosomes are submetacentric.	Tropical rainforests, savannas, Chacoan scrublands, thorn scrub lowlands, evergreen forests, open habitats (e.g. wetlands and grasslands), and also secondary forests, agricultural landscapes, and semi-urban areas from sea level up to elevations of ¢. 1500 m (most commonly below 500 m ). The Silver-tipped Myotis is apparently more abundant in areas that are flooded at least part of the year.	The Silver-tipped Myotis forages in forested areas and over water. Diets include various insects, especially Coleoptera , Diptera , Hemiptera, Homoptera , Hymenoptera , Lepidoptera , Neuroptera, Trichoptera , and other arthropods, such as spiders ( Araneae ). Fish scales also have been reported in stomach contents. It has a trawler foraging style,flying a few centimeters above water orflat surfaces, using highintensity echolocation calls to detect, track, and assess targets, and capturing prey with its feet. In the Brazilian Amazonia, it predominantly forages in forest canopies and subcanopies, but in riparian forest or near water bodies, it mostly uses space closest to the ground or water surface.	The Silver-tipped Myotis is polyestrous, and mating occurs 2-3 times annually. In Paraguay , spermatozoa were present in reproductive tracts of females at the beginning of the reproductive season in May; ovulation,fertilization, and implantation occurs c¢.1-3 months after copulation, indicating possible sperm storage and delayed fertilization; first parturition peak occurs in October, followed by copulation and second pregnancy, and possible third pregnancy in January-March. First gestation lasts c.3 months, and second and third gestations might be shorter. Following third peak, reproductive activity declines until beginning of a new annual cycle. Lactation lasts c.1 month, and lactating females were collected in Paraguay in October-December but also May-June during second and third breeding periods. Pregnant females have been reported in January in Mexico, January and July in Central America, June-September in northern South America, and December—February in south-eastern Brazil and northern South America. In Peru , parturition occurred during dry and wet seasons in eastern lowlands and only during dry season on the Pacific slope. Females have one young per pregnancy. Lactating females also were reported in February-April and November in northern South America; October in south-eastern Brazil ; and September— November in southern South America. Individuals reach sexual maturity at c.1 year of age, but females can mate at c¢.2 months.	Silver-tipped Myotis are nocturnal, emerging soon after sunset. Activity peaks occur immediately after dusk and just before dawn, periods that correspond with greatest abundance offlying diurnal and nocturnal insects. Natural roosts include hollow trees, under bark of trees, trunks, cracks, and crevices in rocks, and rocky cliffs. It is frequently found in human buildings, including attics, under roofs, under palm logs and roofs of palm-thatched huts, and in locations with some natural light and exposure, such as outer walls of buildings or open-sided attics. Captures and roosts are associated with areas near or around water. Wing morphology and echolocation frequency are typical of aerial insectivore that uses using cluttered spaces. Echolocation calls show FM initial component terminating with short CF component. Mean call parameters in South America are start frequency of 92.7 kHz (84-8-100-8 kHz), end frequency of 51-4 kHz (47-4-56-5 kHz), peak frequency of 64 kHz (57-3-72-6 kHz), bandwidth of 41-3 kHz (34-1-48 kHz), and call duration of 2-4 milliseconds (1-9-3 milliseconds).	The Silver-tipped Myotis forms small or large groups in roosts; solitary individuals are uncommon. Colonies are mixed-sex. It can cohabit the same roost with Argentine Serotines ( Eptesicus furinalis ), Common Black Myotis ( M. nigricans ), Riparian Myotis (M. riparius ), Sinaloan Mastiff Bats (Molossus sinaloae), Dwarf Dog-faced Bats (Molossops temminckii), and Black Bonneted Bats (Eumops auripendulus), among others.	Classified as Least Concern on The IUCN Red List. Silvertipped Myotis is widespread and presumably has a large population.	Arias-Aguilar et al. (2018) | Ascorra et al. (1996) | Barquez, Diaz, Samudio & Arroyo-Cabrales (2016) | Braun et al. (2009) | Fenton & Bogdanowicz (2002) | Gamboa & Diaz (2019) | Kalko et al. (1996) | LaVal (1973b) | Lopez-Gonzélez et al. (2001) | Marques et al. (2016) | Moratelli & Morielle-Versute (2007) | Moratelli & Oliveira (2011) | Moratelli, Dewynter et al. (2015) | Moratelli, Gardner et al. (2013) | Myers (1977) | Simmons (2005) | Whitaker & Findley (1980) | Wilson (2008b)	https://zenodo.org/record/6398773/files/figure.png	401. Silver-upped Myotis Myotis albescens French: Murin poudré / German: Silberspitzen-Mausohr / Spanish: Ratonero cenizo Taxonomy. Vespertilio albescens E. Geoffroy Saint-Hilaire, 1806 , “ Paraguay .” Based on neotype selection,restricted by R. K. LaVal in 1973 to “Yaguaron, Paraguari , Paraguay .” Subgenus Pizonyx; albescens species group. Monotypic. Distribution. Widely distributed in Neotropics, from S Veracruz in Mexico, S through Central and South America to Peru , Bolivia , S Brazil , Paraguay , Uruguay , and N Argentina . Descriptive notes. Head-body c¢. 46— 49 mm , tall 35-46 mm , ear 9-14 mm , hindfoot 6-9 mm , forearm 32-2-39- 5 mm ; weight 4-8 g . South American populations show a trend toward increasing size southward. Fur is silky and long (dorsal fur 4-9 mm ; ventral fur 3-8 mm ). Dorsal hairs are bicolored, with dark brown bases and antique brown tips (one-fifth of total length), giving golden appearance; yellowish tips are less evident in a few specimens, in which dorsal fur can be nearly unicolored. Ventral hairs are strongly bicolored, with dark brown bases and generally white tips (one-third the length), giving frosted appearance; ventral fur often becomes progressively paler (whiter) from upper thorax to pelvic region. Ears are comparatively short, extending forward halfway from eye to nostril. Antitragal notch is barely evident. Tragus is long and slender, tapering slightly at tip. Membranes vary from cinnamon-brown to mummy brown; in some individuals, wing membrane has translucent brown appearance. Plagiopatagium is attached to feet by a broad band of membrane; fringe of hairs along trailing edge of uropatagium is present; and upper and lower surfaces of uropatagium are barely covered with hairs. Skull is moderate in size (greatest length of skull 13-1-15- 2 mm ); parietal is normally inclined forward; occipital region is generally rounded posteriorly; braincase is globose; sagittal crest is generally absent, but when present,it is very low; lambdoidal crests are generally present, with low to medium development; forehead slopeslittle; rostrum is narrow relative to braincase; postorbital constriction is great relative to width of braincase. P° is generally aligned with P* and is visible in profile; hypocone on M' and M? is absent or poorly developed. Bacula is large, and individual variation is mostly in depth, not shape. Bacular measurements are length 0-85-0-90, depth 0-30-0-41, and width 0-37-0-50. Chromosomal complement has 2n = 44 and FN = 50, with four metacentric pairs and 17 acrocentric pairs of autosomes. X- and Y-chromosomes are submetacentric. Habitat. Tropical rainforests, savannas, Chacoan scrublands, thorn scrub lowlands, evergreen forests, open habitats (e.g. wetlands and grasslands), and also secondary forests, agricultural landscapes, and semi-urban areas from sea level up to elevations of ¢. 1500 m (most commonly below 500 m ). The Silver-tipped Myotis is apparently more abundant in areas that are flooded at least part of the year. Food and Feeding. The Silver-tipped Myotis forages in forested areas and over water. Diets include various insects, especially Coleoptera , Diptera , Hemiptera, Homoptera , Hymenoptera , Lepidoptera , Neuroptera, Trichoptera , and other arthropods, such as spiders ( Araneae ). Fish scales also have been reported in stomach contents. It has a trawler foraging style,flying a few centimeters above water orflat surfaces, using highintensity echolocation calls to detect, track, and assess targets, and capturing prey with its feet. In the Brazilian Amazonia, it predominantly forages in forest canopies and subcanopies, but in riparian forest or near water bodies, it mostly uses space closest to the ground or water surface. Breeding. The Silver-tipped Myotis is polyestrous, and mating occurs 2-3 times annually. In Paraguay , spermatozoa were present in reproductive tracts of females at the beginning of the reproductive season in May; ovulation,fertilization, and implantation occurs c¢.1-3 months after copulation, indicating possible sperm storage and delayed fertilization; first parturition peak occurs in October, followed by copulation and second pregnancy, and possible third pregnancy in January-March. First gestation lasts c.3 months, and second and third gestations might be shorter. Following third peak, reproductive activity declines until beginning of a new annual cycle. Lactation lasts c.1 month, and lactating females were collected in Paraguay in October-December but also May-June during second and third breeding periods. Pregnant females have been reported in January in Mexico, January and July in Central America, June-September in northern South America, and December—February in south-eastern Brazil and northern South America. In Peru , parturition occurred during dry and wet seasons in eastern lowlands and only during dry season on the Pacific slope. Females have one young per pregnancy. Lactating females also were reported in February-April and November in northern South America; October in south-eastern Brazil ; and September— November in southern South America. Individuals reach sexual maturity at c.1 year of age, but females can mate at c¢.2 months. Activity patterns. Silver-tipped Myotis are nocturnal, emerging soon after sunset. Activity peaks occur immediately after dusk and just before dawn, periods that correspond with greatest abundance offlying diurnal and nocturnal insects. Natural roosts include hollow trees, under bark of trees, trunks, cracks, and crevices in rocks, and rocky cliffs. It is frequently found in human buildings, including attics, under roofs, under palm logs and roofs of palm-thatched huts, and in locations with some natural light and exposure, such as outer walls of buildings or open-sided attics. Captures and roosts are associated with areas near or around water. Wing morphology and echolocation frequency are typical of aerial insectivore that uses using cluttered spaces. Echolocation calls show FM initial component terminating with short CF component. Mean call parameters in South America are start frequency of 92.7 kHz (84-8-100-8 kHz), end frequency of 51-4 kHz (47-4-56-5 kHz), peak frequency of 64 kHz (57-3-72-6 kHz), bandwidth of 41-3 kHz (34-1-48 kHz), and call duration of 2-4 milliseconds (1-9-3 milliseconds). Movements, Home range and Social organization. The Silver-tipped Myotis forms small or large groups in roosts; solitary individuals are uncommon. Colonies are mixed-sex. It can cohabit the same roost with Argentine Serotines ( Eptesicus furinalis ), Common Black Myotis ( M. nigricans ), Riparian Myotis (M. riparius ), Sinaloan Mastiff Bats (Molossus sinaloae), Dwarf Dog-faced Bats (Molossops temminckii), and Black Bonneted Bats (Eumops auripendulus), among others. Status and Conservation. Classified as Least Concern on The IUCN Red List. Silvertipped Myotis is widespread and presumably has a large population. Bibliography. Arias-Aguilar et al. (2018), Ascorra et al. (1996), Barquez, Diaz, Samudio & Arroyo-Cabrales (2016), Braun et al. (2009), Fenton & Bogdanowicz (2002), Gamboa & Diaz (2019), Kalko et al. (1996), LaVal (1973b), Lopez-Gonzélez et al. (2001), Marques et al. (2016), Moratelli & Morielle-Versute (2007), Moratelli & Oliveira (2011), Moratelli, Dewynter et al. (2015), Moratelli, Gardner et al. (2013), Myers (1977), Simmons (2005), Whitaker & Findley (1980), Wilson (2008b).	Simmons, N.B. and A.L. Cirranello. 2022B. Bat Species of the World: A taxonomic and geographic database. Accessed on 10/11/2022.	Vespertilionidae	Myotis albescens	Myotis	Unassigned-Myotis	albescens	E. Geoffroy	1806	1	Ann. Mus. Natn. Hist. Nat. Paris	0.475	Silver-tipped Myotis	 argentatus Dalquest and Hall, 1947; isidori D&#39;Orbigny and Gervais, 1847; leucogaster Schinz, 1821.	Paraguay, Paraguari, Yaguaron (of neotype).	S Veracruz (Mexico), Guatemala, Honduras, Nicaragua, Panama, Colombia, Venezuela, Guyana, Surinam, Equador, Peru, Brazil, Uruguay, N Argentina, Paraguay, and Bolivia.	Not listed.	Least Concern	Includes argentatus ; see LaVal (1973 a ). Includes punensis ; see Moratelli and Wilson (2011).  Reviewed inpart by López-González et al. (2001). Does not include aenobarbus , which is here placed in Nycticeius following Carter andDolan (1978); also see Husson (1962). Although I follow Koopman (1993) in listing isidori as a synonym, there are serious problemswith idenfication of the holotype; see Carter and Dolan (1978), who suggested that this name might actually belong in Pipistrellus .Does not include mundus ; see LaVal (1973 a ). Apparently closely related to nigricans , levis , and oxyotus ; see Ruedi and Mayer (2001).	Mammal Diversity Database. (2023). Mammal Diversity Database (Version 1.11) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.7830771 released 15 April 2023	Myotis albescens	23	Silver-tipped Myotis		Theria	Placentalia	Boreoeutheria	Laurasiatheria	CHIROPTERA	VESPERTILIONIFORMES	NA	NA	VESPERTILIONOIDEA	VESPERTILIONIDAE	MYOTINAE	NA	Myotis	Pizonyx	albescens	É. Geoffroy Saint-Hilaire	1806	1	Vespertilio_albescens	Geoffroy Saint-Hilaire, É. (1806). Mémoire sur le genre et les espèces de Vespertilion, l'un des genres de la famille des Chauve-souris. Annales du Muséum d'histoire naturelle, 8, 204.	https://www.biodiversitylibrary.org/item/51185#page/246/mode/1up	AMNH 205195 [neotype]		"Paraguay." Based on neotype selection, restricted by R. K. LaVal in 1973 to "Yaguaron, Paraguari, Paraguay."			albescens (É. Geoffroy Saint-Hilaire, 1806)|leucogaster (Schinz, 1821)|punensis J. A. Allen, 1914	NA	NA	Mexico|Guatemala|Honduras|Nicaragua|Costa Rica|Panama|Colombia|Venezuela|Guyana|Suriname|French Guiana|Ecuador|Peru|Brazil|Bolivia|Paraguay|Uruguay|Argentina	North America|South America	Nearctic|Neotropic	LC	0	0	0	Myotis_albescens	0	sciname match	Myotis_albescens	0	IUCN. 2022. The IUCN Red List of Threatened Species. Version 2022-1. https://www.iucnredlist.org. Accessed on [28 September, 2022].	14140	Myotis albescens	ANIMALIA	CHORDATA	MAMMALIA	CHIROPTERA	VESPERTILIONIDAE	Myotis	albescens	(É. Geoffroy, 1806)	Apparently closely related to nigricans , levis , and oxyotus .	20000000	Myotis albescens	Least Concern		2016	2015-07-20 00:00:00 UTC	3.1	English	This species is listed as Least Concern in because of its wide distribution, presumed large population, occurrence in a number of protected areas, tolerance to some degree of habitat modification, and because it is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category.	Silver-tipped Myotis is found in forests, urban habitats, and parks. It is an insectivorous species.	There are no major threats to this species throughout its range.	This species is abundant through out its range, although it is not common in Mexico (Arroyo-Cabrales pers. comm).	Stable	The species occurs in Southern Veracruz (Mexico), Guatemala, Honduras, Nicaragua, Panama, Colombia, Venezuela, Guyana, Suriname, Ecuador, Peru, Brazil, Uruguay, Northern Argentina, Paraguay, and Bolivia (Simmons 2005).		Terrestrial	The species needs taxonomic review (Braquez pers. comm). It is found in protected areas, and in Mexico it is listed as subject to special protection under NOM - 059 - SEMARNAT - 2001 (Arroyo-Cabrales pers. comm).	Neotropical		FALSE	FALSE	Global	Simmons, N. B., & Cirranello, A. L. (2023). Batnames.org Species List Version 1.4 (1.4). Zenodo. https://doi.org/10.5281/zenodo.8136157 	Vespertilionidae	Myotis	Unassigned - Myotis	albescens	É. Geoffroy Saint-Hilaire	1806	1	Ann. Mus. Natn. Hist. Nat. Paris	0.475	Silver-tipped Myotis	 argentatus Dalquest and Hall, 1947; isidori D&#39;Orbigny and Gervais, 1847; leucogaster Schinz, 1821.	Paraguay, Paraguari, Yaguaron (of neotype).	S Veracruz (Mexico), Guatemala, Honduras, Nicaragua, Panama, Colombia, Venezuela, Guyana, Surinam, Equador, Peru, Brazil, Uruguay, N Argentina, Paraguay, and Bolivia.	Not listed.	Least Concern	Includes argentatus ; see LaVal (1973 a ). Includes punensis ; see Moratelli and Wilson (2011).  Reviewed inpart by López-González et al. (2001). Does not include aenobarbus , which is here placed in Nycticeius following Carter andDolan (1978); also see Husson (1962). Although I follow Koopman (1993) in listing isidori as a synonym, there are serious problemswith idenfication of the holotype; see Carter and Dolan (1978), who suggested that this name might actually belong in Pipistrellus .Does not include mundus ; see LaVal (1973 a ). Apparently closely related to nigricans , levis , and oxyotus ; see Ruedi and Mayer (2001).	Myotis albescens	1005359	23	Silver-tipped Myotis		Theria	Placentalia	Boreoeutheria	Laurasiatheria	CHIROPTERA	VESPERTILIONIFORMES	NA	NA	VESPERTILIONOIDEA	Vespertilionidae	MYOTINAE	NA	Myotis	Pizonyx	albescens	É. Geoffroy Saint-Hilaire	1806	1	Vespertilio_albescens	Geoffroy Saint-Hilaire, É. (1806). Mémoire sur le genre et les espèces de Vespertilion, l'un des genres de la famille des Chauve-souris. Annales du Muséum d'histoire naturelle, 8, 204.	https://www.biodiversitylibrary.org/item/51185#page/246/mode/1up	AMNH 205195 [neotype]		"Paraguay." Based on neotype selection, restricted by R. K. LaVal in 1973 to "Yaguaron, Paraguari, Paraguay."			albescens (É. Geoffroy Saint-Hilaire, 1806)|leucogaster (Schinz, 1821)|punensis J. A. Allen, 1914	NA	NA				Mexico|Guatemala|Honduras|Nicaragua|Costa Rica|Panama|Colombia|Venezuela|Guyana|Suriname|French Guiana|Ecuador|Peru|Brazil|Bolivia|Paraguay|Uruguay|Argentina	North America|South America	Nearctic|Neotropic	LC	0	0	0	Myotis_albescens	0	sciname match	Myotis_albescens	0	Burgin, C. J., Zijlstra, J. S., Becker, M. A., Handika, H., Alston, J. M., Widness, J., Liphardt, S., Huckaby, D. G., and Upham, N. S. (2025). How many mammal species are there now? Updates and trends in taxonomic, nomenclatural, and geographic knowledge. Journal of Mammalogy in revision: TBD. https://doi.org/10.1101/2025.02.27.640393	Myotis_albescens	1005359	23	Silver-tipped Myotis		Theria	Placentalia	Boreoeutheria	Laurasiatheria	Chiroptera	Yangochiroptera	NA	NA	Vespertilionoidea	Vespertilionidae	Myotinae	NA	Myotis	Pizonyx	albescens	É. Geoffroy Saint-Hilaire	1	Vespertilio albescens	Geoffroy Saint-Hilaire, É. 1806. Mémoire sur le genre et les espèces de Vespertilion, l'un des genres de la famille des chauve-souris. Annales du Muséum d'histoire naturelle 8:187-205.	https://www.biodiversitylibrary.org/page/29407874	AMNH M-205195	neotype	http://portal.vertnet.org/o/amnh/mammals?id=urn-catalog-amnh-mammals-m-205195	"Paraguay." Based on neotype selection, restricted by R. K. LaVal in 1973 to "Yaguaron, Paraguari, Paraguay."	-25.55	-57.2833	NA	NA				Mexico|Guatemala|Honduras|Nicaragua|Costa Rica|Panama|Colombia|Venezuela|Guyana|Suriname|French Guiana|Ecuador|Peru|Brazil|Bolivia|Paraguay|Uruguay|Argentina	North America|South America	Nearctic|Neotropic	LC	0	0	0	Myotis_albescens	0	sciname match	Myotis_albescens	0	Simmons, N. B., & Cirranello, A. L. (2025). Batnames.org Species List Version 1.7 (1.7). Zenodo. https://doi.org/10.5281/zenodo.14796586	Vespertilionidae	Myotis	Pizonyx	albescens	É. Geoffroy Saint-Hilaire	1806	1	Ann. Mus. Natn. Hist. Nat. Paris	0.475	Silver-tipped Myotis	argentatus Dalquest and Hall, 1947; isidori D&#39;Orbigny and Gervais, 1847; leucogaster Schinz, 1821.	Paraguay, Paraguari, Yaguaron (of neotype).	S Veracruz (Mexico), Guatemala, Honduras, Nicaragua, Panama, Colombia, Venezuela, Guyana, Surinam, Equador, Peru, Brazil, Uruguay, N Argentina, Paraguay, and Bolivia.	<a href='https://cites.org/eng/app/appendices.php' target='_blank'>Not Listed</a>	<a href='https://www.iucnredlist.org/species/14140/22049892/' target='_blank'>Least Concern</a>	Includes argentatus; see LaVal (1973a). Includes punensis; see Moratelli and Wilson (2011).  Reviewed inpart by López-González et al. (2001). Does not include aenobarbus, which is here placed in Nycticeius following Carter andDolan (1978); also see Husson (1962). Although I follow Koopman (1993) in listing isidori as a synonym, there are serious problemswith idenfication of the holotype; see Carter and Dolan (1978), who suggested that this name might actually belong in Pipistrellus.Does not include mundus; see LaVal (1973a). Apparently closely related to nigricans, levis, and oxyotus; see Ruedi and Mayer (2001).		Mammal Diversity Database. (2025). Mammal Diversity Database (Version 2.2) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.15007505	NA	Myotis albescens; Myotis albescens; Myotis albescens; Myotis albescens; Myotis albescens; Myotis albescens; argentatus; isidori; leucogaster; argentatus; isidori; leucogaster; albescens; leucogaster; punensis; Murin poudré; Silberspitzen-Mausohr; Ratonero cenizo; Silver-tipped Myotis; Silver-tipped Myotis; Silver-tipped Myotis; M. albescens