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line:xlsx:hash://sha256/181a039844a33e66a35a457b7ece741051086608e425a040051b79581d606b97!/Sheet1!/L140	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet	Natalus tumidifrons	Natalus micropus [synonym of]	Natalus tumidifrons	Natalus tumidifrons	Natalus tumidifrons	Chilonatalus tumidifrons	Chilonatalus tumidifrons	Chilonatalus tumidifrons	Chilonatalus tumidifrons	Chilonatalus tumidifrons	Chilonatalus tumidifrons	Chilonatalus tumidifrons	Chilonatalus tumidifrons	Chilonatalus tumidifrons	Chilonatalus tumidifrons		[MSW2] Subgenus Chilonatalus. Formerly included in micropus; but see Ottenwalder and Genoways (1982) who revised both species.; [MSW3] Formerly included in micropus (e.g., Hall, 1981) but see Ottenwalder and Genoways (1982) who revised both species.; [HMW] Chilonatalus tumidifrons G. S. Miller, 1903 , “Watlings Island [= San Salvador Island ], Bahamas .” This species is monotypic.; [batnames2022] Formerly included in micropus (e.g., Hall, 1981) but see Ottenwalder and Genoways (1982) who revised both species.; [IUCN] Formerly included in micropus (e.g., Hall, 1981) (Simmons 2005).; [batnames2023] Formerly included in micropus (e.g., Hall, 1981) but see Ottenwalder and Genoways (1982) who revised both species.; [batnames2025_1.7] Formerly included in micropus (e.g., Hall, 1981) but see Ottenwalder and Genoways (1982) who revised both species.														tumidifrons	Formerly included in micropus (e.g., Hall, 1981) (Simmons 2005).			tumidifrons 	tumidifrons 			tumidifrons G. S. Miller, 1903		Corbet, G.B. and Hill, J.E. 1980. A World List of Mammalian Species. British Museum (Natural History), London, 226 pp.		Bahamas		N/A					Distribution: Presently confined to the northern and eastern Bahamas.		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		Bahamas	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.	Miller	1903	Proc. Biol. Soc. Washington, 16:119.	Subgenus Chilonatalus. Formerly included in micropus; but see Ottenwalder and Genoways (1982) who revised both species.	Islands of the Bahamas.	Bahamas, Watling Island.		MILLER	1903	Size medium (forearm length, 31-35 mm; condylobasal length, 13-15 mm).	Distribution: Presently confined to the northern and eastern Bahamas.	No subspecies.		95	species	N. tumidifrons	MILLER	1903	Chilonatalus	subgenus	Natalus tumidifrons				Size medium (forearm length, 31-35 mm; condylobasal length, 13-15 mm).	No subspecies.		4. N. tumidifrons (MILLER 1903).	4	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	Natalidae			Chilonatalus tumidifrons	Chilonatalus		tumidifrons	Miller		1903		Proc. Biol. Soc. Wash.	16		119		Bahamian Lesser Funnel-eared Bat	Bahamas, Watling Isl (= San Salvador Isl).	Isls of the Bahamas.	IUCN 2003 and IUCN/SSC Action Plan (2001) – Vulnerable as Natalus tumidifrons.		Formerly included in micropus (e.g., Hall, 1981) but see Ottenwalder and Genoways (1982) who revised both species.	290787FFFFA71870FF0B9FF2E2B33232	Handbook of the Mammals of the World – Volume 9 Bats, Barcelona: Lynx Edicions	978-84-16728-19-0	hbmw_9_Natalidae_584.pdf.imf	hash://md5/d53eff87ffa41873ffba9505eb7b3516	592	zip:hash://sha256/ec5fd314a06aba1a7b0b72f23e54ac625ae272bd98f82f1d01f4c09627d9e8e0!/treatments-xml-main/data/29/07/87/290787FFFFA71870FF0B9FF2E2B33232.xml	Chilonatalus tumidifrons	Natalidae	Chilonatalus	tumidifrons	G. S. Miller	1903	Natalide des Bahamas @fr | Kleines Bahamas-Trichterohr @de | Natalido de las Bahamas @es | Bahaman Funnel-eared Bat @en | Bahamian Least Funnel-eared Bat @en	Chilonatalus tumidifrons G. S. Miller, 1903 , “Watlings Island [= San Salvador Island ], Bahamas .” This species is monotypic.	Bahamas ( Abaco , Andros , and San Salvador Is).	Ear 14-7-17-2 mm, forearm 31-7-36 mm (males) and 32.8-35-2 mm (females); weight 3-3-5 g (males) and 3 g (females). Pelage is dense, long, light brown to orange-brown,lighter dorsally, and bicolored, with tips darker than bases. There are dense mustache-like hair tufts along lateral margins of upperlip. It has dermal outgrowths around mouth and relatively large skull. Ears are broad and square-shaped, with vestigial 2-3 ear pleats, straight anterior and lateral margins, and relatively rounded apex. Natalid organ of males is melon-shaped, up to one-half the length of skull, and covering one-half of dorsum of rostrum and forehead. Wings are broad and relatively pointed, inserting to tibia at its proximal one-half. Free edge of uropatagium has fine fringe of hairs. Rostrum is long and narrow, and braincase is inflated, rising gradually from rostrum. Crown of second premolar is about as high as that of third premolar. Skull constriction between orbits is relatively narrow, ridge between basisphenoid furrows is wide, and second premolar is crowded.	Only semideciduous forest habitats near sea level. The Bahamian Lesser Funnel-eared Bat roosts in small to large caves, usually in areas near open water sources but also in drier sections. Roost-site temperatures are 23—-24°C.	There is no specific information available for this species, but the Bahamian Lesser Funnel-eared Bat is certainly insectivorous.	Male-only roosting groups of Bahamian Lesser Funnel-eared Bats have been found in July. If sexes segregate during reproduction as in other natalids, this suggests that lactation takes place in July. Males have extremely short penises (1-2-3 mm) relative to other natalids and conversely very large natalid organs. For this reason, it has been speculated that mating system involves lekking behavior.	The Bahamian Lesser Funnel-eared Bat is nocturnal. Foraging activity begins around sunset, with emergence lasting c.30 minutes. Its broad wings and large tail membranes suggest it flies very slowly, having been compared to that of a large moth.	Roosting groups of Bahamian Lesser Funnel-eared Bats can switch between roosting caves located 1 km apart on a daily basis. They can share caves with larger bats, such as the Buffy Flower Bat (Erophylla sezekorni), Waterhouse’s Leaf-nosed Bat (Macrotus waterhousii), and the Big Brown Bat ( Eptesicus fuscus), but they roost away from them and in low areas under shelves or ledges. A colony of ¢.300 Bahamian Lesser Funnel-eared Bats on Abaco abandoned a cave entirely when 100-200 Bufty Flower Bats occupied it.	Classified as Near Threatened on The IUCN Red List. The Bahamian Lesser Funnel-eared Bat is known only from twelve localities, of which eight are caves. It has been found in groups ranging from less than ten to more than 500 individuals. Its only large population might be on San Salvador Island , given the island’s high abundance of small, non-surveyed caves that potentially harbor colonies. On Abaco, it is known from two caves, and on Andros, it is known only from Bat Cave where many individuals have been observed swarming out to feed.	Allen (1905) | Miller (1903, 1905) | Ottenwalder & Genoways (1982) | Tejedor (2011)	https://zenodo.org/record/6811106/files/figure.png	4. Bahamian Lesser Funnel-eared Bat Chilonatalus tumaidifrons French: Natalide des Bahamas / German: Kleines Bahamas-Trichterohr / Spanish: Natalido de las Bahamas Other common names: Bahaman Funnel-eared Bat , Bahamian Least Funnel-eared Bat Taxonomy. Chilonatalus tumidifrons G. S. Miller, 1903 , “Watlings Island [= San Salvador Island ], Bahamas .” This species is monotypic. Distribution. Bahamas ( Abaco , Andros , and San Salvador Is). Descriptive notes. Ear 14-7-17-2 mm, forearm 31-7-36 mm (males) and 32.8-35-2 mm (females); weight 3-3-5 g (males) and 3 g (females). Pelage is dense, long, light brown to orange-brown,lighter dorsally, and bicolored, with tips darker than bases. There are dense mustache-like hair tufts along lateral margins of upperlip. It has dermal outgrowths around mouth and relatively large skull. Ears are broad and square-shaped, with vestigial 2-3 ear pleats, straight anterior and lateral margins, and relatively rounded apex. Natalid organ of males is melon-shaped, up to one-half the length of skull, and covering one-half of dorsum of rostrum and forehead. Wings are broad and relatively pointed, inserting to tibia at its proximal one-half. Free edge of uropatagium has fine fringe of hairs. Rostrum is long and narrow, and braincase is inflated, rising gradually from rostrum. Crown of second premolar is about as high as that of third premolar. Skull constriction between orbits is relatively narrow, ridge between basisphenoid furrows is wide, and second premolar is crowded. Habitat. Only semideciduous forest habitats near sea level. The Bahamian Lesser Funnel-eared Bat roosts in small to large caves, usually in areas near open water sources but also in drier sections. Roost-site temperatures are 23—-24°C. Food and Feeding. There is no specific information available for this species, but the Bahamian Lesser Funnel-eared Bat is certainly insectivorous. Breeding. Male-only roosting groups of Bahamian Lesser Funnel-eared Bats have been found in July. If sexes segregate during reproduction as in other natalids, this suggests that lactation takes place in July. Males have extremely short penises (1-2-3 mm) relative to other natalids and conversely very large natalid organs. For this reason, it has been speculated that mating system involves lekking behavior. Activity patterns. The Bahamian Lesser Funnel-eared Bat is nocturnal. Foraging activity begins around sunset, with emergence lasting c.30 minutes. Its broad wings and large tail membranes suggest it flies very slowly, having been compared to that of a large moth. Movements, Home range and Social organization. Roosting groups of Bahamian Lesser Funnel-eared Bats can switch between roosting caves located 1 km apart on a daily basis. They can share caves with larger bats, such as the Buffy Flower Bat (Erophylla sezekorni), Waterhouse’s Leaf-nosed Bat (Macrotus waterhousii), and the Big Brown Bat ( Eptesicus fuscus), but they roost away from them and in low areas under shelves or ledges. A colony of ¢.300 Bahamian Lesser Funnel-eared Bats on Abaco abandoned a cave entirely when 100-200 Bufty Flower Bats occupied it. Status and Conservation. Classified as Near Threatened on The IUCN Red List. The Bahamian Lesser Funnel-eared Bat is known only from twelve localities, of which eight are caves. It has been found in groups ranging from less than ten to more than 500 individuals. Its only large population might be on San Salvador Island , given the island’s high abundance of small, non-surveyed caves that potentially harbor colonies. On Abaco, it is known from two caves, and on Andros, it is known only from Bat Cave where many individuals have been observed swarming out to feed. Bibliography. Allen (1905), Miller (1903, 1905), Ottenwalder & Genoways (1982), Tejedor (2011).	Simmons, N.B. and A.L. Cirranello. 2022B. Bat Species of the World: A taxonomic and geographic database. Accessed on 10/11/2022.	Natalidae	Chilonatalus tumidifrons	Chilonatalus		tumidifrons	Miller	1903	0	Proc. Biol. Soc. Wash.	0.7493	Bahamian Lesser Funnel-eared Bat	None.	Bahamas, Watling Isl (= San Salvador Isl).	Isls of the Bahamas.	Not listed.	Near Threatened	Formerly included in micropus (e.g., Hall, 1981) but see Ottenwalder and Genoways (1982) who revised both species.	Mammal Diversity Database. (2023). Mammal Diversity Database (Version 1.11) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.7830771 released 15 April 2023	Chilonatalus tumidifrons	23	Bahamian Lesser Funnel-eared Bat	Bahaman Funnel-eared Bat|Bahamian Least Funnel-eared Bat	Theria	Placentalia	Boreoeutheria	Laurasiatheria	CHIROPTERA	VESPERTILIONIFORMES	NA	NA	VESPERTILIONOIDEA	NATALIDAE	NA	NA	Chilonatalus	NA	tumidifrons	G. S. Miller	1903	0	Chilonatalus_tumidifrons	Miller, G. S., Jr. (1903). A New Nataline Bat from the Bahamas. Proceedings of the Biological Society of Washington, 16, 119.	https://www.biodiversitylibrary.org/page/2345252#page/137/mode/1up	USNM 122024		"Watlings Island [= San Salvador Island], Bahamas."			tumidifrons G. S. Miller, 1903	NA	NA	Bahamas	North America	Nearctic	NT	0	0	0	Chilonatalus_tumidifrons	0	sciname match	Chilonatalus_tumidifrons	0	IUCN. 2022. The IUCN Red List of Threatened Species. Version 2022-1. https://www.iucnredlist.org. Accessed on [28 September, 2022].	14361	Chilonatalus tumidifrons	ANIMALIA	CHORDATA	MAMMALIA	CHIROPTERA	NATALIDAE	Chilonatalus	tumidifrons	Miller, 1903	Formerly included in micropus (e.g., Hall, 1981) (Simmons 2005).	20000000	Chilonatalus tumidifrons	Near Threatened	A2c	2018	2018-02-01 00:00:00 UTC	3.1	English	This species is listed as Near Threatened because a decline of 20-25% of population is suspected in the last ten years due to the reduction of the extent and quality of its habitat. The species and its roosts are threatened by human activities inside the caves (tourism, recreational activities), thus making the species close to qualifying for Vulnerable under criterion A2c.	Chilonatalus tumidifrons ;is poorly known. This species ;is associated with Bahamian ;deciduous forest habitats of moderate precipitation (1021–1288 mm annual) and occurs near sea level throughout its range. It is presumably insectivorous, but nothing has been published on the diet of this species (Tejedor 2011). Deep caves, where hot and moist conditions are maintained continuously, are the single most important habitat requirement. It has been found in caves both large and small where it often roosts above water, but also in drier ;areas (Tejedor 2011). During their active hours Bahamian funnel-eared bats forage for insects in the dense understory of surrounding forests. Nothing is known of the reproduction or mating systems of these bats, but they are most likely polygynous (Burns and Yahnke 2006). ;Generally, its colonies leave their roost 30 minutes after sundown. They are such agile flyers that they are rarely caught in mist nets. For this reason, little is know about their natural history (Burns and Yahnke 2006).	This species is known from 20 localities of which eight are caves, this species’ only known roost type (Tejedor 2011). Therefore, the species and its roosts are threatened by human activities inside these caves, as well as by severe climatic changes on these Caribbean islands.	The population of San Salvador Island could be relatively large given the high abundance of small, unsurveyed caves on the island that may potentially harbor colonies of this species (Hall et al . 1998). In Andros, many individuals were observed to swarm out of the cave during a feeding exodus (Andersen 1994). Females form maternity colonies in which they give birth to and care for their young. Females are completely responsible for the care of their young. Giving birth to just one offspring per event means that females allocate all of their efforts to the single young (Burns and Yahnke 2006). Nothing is known of the longevity/lifespan of Bahamian funnel-eared bats.	Unknown	This species is known from islands of the Bahamas (Abaco, Andros, and San Salvador; also, as a fossil, in New ;Providence, Cat and Great Exuma) (Simmons 2005, Tejedor 2011). It occurs near sea level throughout its range.		Terrestrial	Because of its dependence upon caves, the first conservation actions should emphasize protection of the caves. Further survey work is needed on San Salvador island, where a large colony is known to exist, to estimate its population size and conservation status (Hall et al . 1998).	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 	Natalidae	Chilonatalus		tumidifrons	Miller	1903	0	Proc. Biol. Soc. Wash.	0.749306	Bahamian Lesser Funnel-eared Bat	None.	Bahamas, Watling Isl (= San Salvador Isl).	Isls of the Bahamas.	Not listed.	Near Threatened	Formerly included in micropus (e.g., Hall, 1981) but see Ottenwalder and Genoways (1982) who revised both species.	Chilonatalus tumidifrons	1005272	23	Bahamian Lesser Funnel-eared Bat	Bahaman Funnel-eared Bat|Bahamian Least Funnel-eared Bat	Theria	Placentalia	Boreoeutheria	Laurasiatheria	CHIROPTERA	VESPERTILIONIFORMES	NA	NA	VESPERTILIONOIDEA	Natalidae	NA	NA	Chilonatalus	NA	tumidifrons	G. S. Miller	1903	0	Chilonatalus_tumidifrons	Miller, G. S., Jr. (1903). A New Nataline Bat from the Bahamas. Proceedings of the Biological Society of Washington, 16, 119.	https://www.biodiversitylibrary.org/page/2345252#page/137/mode/1up	USNM 122024		"Watlings Island [= San Salvador Island], Bahamas."			tumidifrons G. S. Miller, 1903	NA	NA				Bahamas	North America	Nearctic	NT	0	0	0	Chilonatalus_tumidifrons	0	sciname match	Chilonatalus_tumidifrons	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	Chilonatalus_tumidifrons	1005272	23	Bahamian Lesser Funnel-eared Bat	Bahaman Funnel-eared Bat|Bahamian Least Funnel-eared Bat	Theria	Placentalia	Boreoeutheria	Laurasiatheria	Chiroptera	Yangochiroptera	NA	NA	Vespertilionoidea	Natalidae	NA	NA	Chilonatalus	NA	tumidifrons	G. S. Miller	0	Chilonatalus tumidifrons	Miller, G.S., Jr. 1903-09-30. A new nataline bat from the Bahamas. Proceedings of the Biological Society of Washington 16:119-120.	https://www.biodiversitylibrary.org/page/2345252	USNM:MAMM:122024	holotype	http://n2t.net/ark:/65665/3649a401a-d4d3-4bff-8d67-d873a98e6dcd	"Watlings Island [= San Salvador Island], Bahamas."			NA	NA				Bahamas	North America	Neotropic	NT	0	0	0	Chilonatalus_tumidifrons	0	sciname match	Chilonatalus_tumidifrons	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	Natalidae	Chilonatalus		tumidifrons	Miller	1903	0	Proc. Biol. Soc. Wash.	0.749306	Bahamian Lesser Funnel-eared Bat	None.	Bahamas, Watling Isl (= San Salvador Isl).	Isls of the Bahamas.	<a href='https://cites.org/eng/app/appendices.php' target='_blank'>Not Listed</a>	<a href='https://www.iucnredlist.org/species/14361/22041195/' target='_blank'>Near Threatened</a>	Formerly included in micropus (e.g., Hall, 1981) but see Ottenwalder and Genoways (1982) who revised both species.		Mammal Diversity Database. (2025). Mammal Diversity Database (Version 2.2) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.15007505	NA	Chilonatalus tumidifrons; Chilonatalus tumidifrons; Chilonatalus tumidifrons; Chilonatalus tumidifrons; Chilonatalus tumidifrons; Chilonatalus tumidifrons; tumidifrons; Natalide des Bahamas; Kleines Bahamas-Trichterohr; Natalido de las Bahamas; Bahaman Funnel-eared Bat; Bahamian Least Funnel-eared Bat; Bahamian Lesser Funnel-eared Bat; Bahaman Funnel-eared Bat; Bahamian Least Funnel-eared Bat; Bahamian Lesser Funnel-eared Bat; Bahamian Lesser Funnel-eared Bat; C. tumidifrons