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line:xlsx:hash://sha256/181a039844a33e66a35a457b7ece741051086608e425a040051b79581d606b97!/Sheet1!/L144	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet	Chiroderma improvisum	Chiroderma improvisum	Chiroderma improvisum	Chiroderma improvisum	Chiroderma improvisum	Chiroderma improvisum	Chiroderma improvisum	Chiroderma improvisum	Chiroderma improvisum	Chiroderma improvisum	Chiroderma improvisum	Chiroderma improvisum	Chiroderma improvisum	Chiroderma improvisum	Chiroderma improvisum		[MSW2] See Jones and Baker (1980, Mammalian Species, 134).; [MSW3] See Jones and Baker (1980) and Jones (1989).; [HMW] Chiroderma improvisum R. J. Baker & Genoways, 1976 , “ Guadeloupe : Basse-Terre; 2 km . S, 2 km . E Baie-Mahault,” Lesser Antilles. This species is monotypic.; [batnames2022] See Jones and Baker (1980), Jones (1989), and Garbino et al. (2020). Subfossil remains have been found on Marie-Galante; see Lenoble (2019).; [batnames2023] See Jones and Baker (1980), Jones (1989), and Garbino et al. (2020). Subfossil remains have been found on Marie-Galante; see Lenoble (2019).; [batnames2025_1.7] See Jones and Baker (1980), Jones (1989), and Garbino et al. (2020). Subfossil remains have been found on Marie-Galante; see Lenoble (2019).														improvisum				improvisum	improvisum			improvisum R. J. Baker & Genoways, 1976		Corbet, G.B. and Hill, J.E. 1980. A World List of Mammalian Species. British Museum (Natural History), London, 226 pp.		Guadeloupe, Lesser Antilles	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.	Chiroderma improvisum	Guadeloupe (Lesser Antilles), Basse Terre, 2 km S. and 2 km E. BaieMahault (France).	Baker and Genoways	1976	Occas. Pap. Mus. Texas Tech Univ., 39:2.	Distribution: Known only from Guadeloupe and Montserrat islands in the Lesser Antilles.		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	Guadeloupe white-lined bat	Guadeloupe, Montserrat, Lesser Antilles	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.	Baker and Genoways	1976	Occas. Pap. Mus. Texas Tech Univ., 39:2.	See Jones and Baker (1980, Mammalian Species, 134).	Guadeloupe and Montserrat (Lesser Antilles).	Guadeloupe (Lesser Antilles), Basse Terre, 2 km S and 2 km E Baie-Mahault (France).		BAKER & GENOWAYS	1976	Size relatively large (forearm length, 57-58 mm; condylobasal length, 27-28 mm). Anterior lower premolar relatively small with anterior cusp poorly developed. Inner upper incisors bluntly pointed, strongly convergent but not in contact. Dorsal stripe prominent but facial stripes poorly developed.	Distribution: Known only from Guadeloupe and Montserrat islands in the Lesser Antilles.	No subspecies.		89	species	C. improvisum	BAKER & GENOWAYS	1976	Chiroderma	genus	Chiroderma improvisum				Size relatively large (forearm length, 57-58 mm; condylobasal length, 27-28 mm). Anterior lower premolar relatively small with anterior cusp poorly developed. Inner upper incisors bluntly pointed, strongly convergent but not in contact. Dorsal stripe prominent but facial stripes poorly developed.	No subspecies.		5. C. improvisum BAKER & GENOWAYS 1976.	5	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	Phyllostomidae	Stenodermatinae	Stenodermatini	Chiroderma improvisum	Chiroderma		improvisum	Baker and Genoways		1976		Occas. Pap. Mus. Texas Tech Univ.	39		2		Guadeloupean Big-eyed Bat	Guadeloupe (Lesser Antilles), Basse Terre, 2 km S and 2 km E Baie-Mahault (France).	Guadeloupe and Montserrat (Lesser Antilles).	IUCN 2003 and IUCN/SSC Action Plan (2001) – Endangered.		See Jones and Baker (1980) and Jones (1989).	03A687BCFFF4FFF413BEFDBCFE55FB08	Handbook of the Mammals of the World – Volume 9 Bats, Barcelona: Lynx Edicions	978-84-16728-19-0	hbmw_9_Phyllostomidae_444.pdf.imf	hash://md5/ff9fffc4ffb1ffb1133cffbaffe0f244	553	zip:hash://sha256/ec5fd314a06aba1a7b0b72f23e54ac625ae272bd98f82f1d01f4c09627d9e8e0!/treatments-xml-main/data/03/A6/87/03A687BCFFF4FFF413BEFDBCFE55FB08.xml	Chiroderma improvisum	Phyllostomidae	Chiroderma	improvisum	R. J. Baker & Genoways	1976	Chiroderme de Guadeloupe @fr | Guadeloupe-Grof Raugenfledermaus @de | Quirodermode Guadalupe @es	Chiroderma improvisum R. J. Baker & Genoways, 1976 , “ Guadeloupe : Basse-Terre; 2 km . S, 2 km . E Baie-Mahault,” Lesser Antilles. This species is monotypic.	Lesser Antilles in St. Kitts , Montserrat , and Guadeloupe Is.	Head—body 85-87 mm (tailless), ear 21-21-5 mm, hindfoot 15-17 mm, forearm 57-3-58-4 mm; weight 34-35 g. Dorsal fur of the Guadeloupean Big-eyed Bat is dark brownish. Dorsal hairs are tricolored, with grayish brown bases, buff middles, and brown tips. Thin white median dorsalstripe extends from interscapular region to rump. Head has thin, inconspicuous, white supraocular and subocular stripes. Rostrum is relatively short. Ears are yellowish at bases, and distal one-half and tips are blackish. Tragus is small, ¢.33% of ear length, and yellowish. Noseleaf tip is simple or notched and blackish. Underparts are grayish. Wing membranes are blackish. Uropatagium is hairy and well developed, with notch near level of knees. Proximal two-thirds of forearm is hairy. Tail is absent. Skull has deep notch on nasal region due to greatly reduced nasal bones. Postorbital processes are well developed. Paraoccipital processes are prominent. Palate is relatively broad, without median post-palatal process. Sagittal crest is well developed. Mandible has prominent angular and coronoid processes. I' are in contactat tips. P, is small, and crown is c.33% height of P,. M,is massive, longer than M, and with five well-defined cusps. Dental formula for species of Chirodermais 12/2, C1/1,P 2/2, M 2/2 ( x2 ) = 28. Chromosomal complement has 2n = 26 and FN = 48, with nine pairs of submetacentric or metacentric, two pairs of subtelocentric, and one pair of acrocentric autosomes. X-chromosome is subtelocentric, and Y-chromosome has minute second arm.	Open field adjacentto riparian forest ( Guadeloupe ); dry evergreen and deciduous rainforests, secondary forest, and grazed and cultivated plots ( Montserrat ); and peri-urban area ( Saint Kitts ), from sea level up to elevations of 355 m .	There is no specific information available for this species, but the congeneric Brazilian Big-eyed Bat ( C. doriae ) and the Hairy Big-eyed Bat (C. villosum ) are granivores, specialized on eating seeds of Ficus ( Moraceae ).	No information.	No information.	No information.	Classified as Endangered on The IUCN Red List. The Guadeloupean Big-eyed Bat is known from seven specimens,it has a restricted distribution, and its habitat is threatened by landscape conversion. It was thought to be extirpated on Montserrat Island because no records were made between 1985 and 2004, following hurricane and volcano activity. In 2005, it was again recorded on Montserrat .	Baker & Genoways (1976) | Beck et al. (2016) | Jones & Baker (1979, 1980) | Larsen, R.J. et al. (2007) | Pierson et al. (1986)	https://zenodo.org/record/6458890/files/figure.png	143. Guadeloupean Big-eyed Bat Chiroderma improvisum French: Chiroderme de Guadeloupe / German: Guadeloupe-GrofRaugenfledermaus / Spanish: Quirodermo de Guadalupe Taxonomy. Chiroderma improvisum R. J. Baker & Genoways, 1976 , “ Guadeloupe : Basse-Terre; 2 km . S, 2 km . E Baie-Mahault,” Lesser Antilles. This species is monotypic. Distribution. Lesser Antilles in St. Kitts , Montserrat , and Guadeloupe Is. Descriptive notes. Head—body 85-87 mm (tailless), ear 21-21-5 mm, hindfoot 15-17 mm, forearm 57-3-58-4 mm; weight 34-35 g. Dorsal fur of the Guadeloupean Big-eyed Bat is dark brownish. Dorsal hairs are tricolored, with grayish brown bases, buff middles, and brown tips. Thin white median dorsalstripe extends from interscapular region to rump. Head has thin, inconspicuous, white supraocular and subocular stripes. Rostrum is relatively short. Ears are yellowish at bases, and distal one-half and tips are blackish. Tragus is small, ¢.33% of ear length, and yellowish. Noseleaf tip is simple or notched and blackish. Underparts are grayish. Wing membranes are blackish. Uropatagium is hairy and well developed, with notch near level of knees. Proximal two-thirds of forearm is hairy. Tail is absent. Skull has deep notch on nasal region due to greatly reduced nasal bones. Postorbital processes are well developed. Paraoccipital processes are prominent. Palate is relatively broad, without median post-palatal process. Sagittal crest is well developed. Mandible has prominent angular and coronoid processes. I' are in contactat tips. P, is small, and crown is c.33% height of P,. M,is massive, longer than M, and with five well-defined cusps. Dental formula for species of Chirodermais 12/2, C1/1,P 2/2, M 2/2 ( x2 ) = 28. Chromosomal complement has 2n = 26 and FN = 48, with nine pairs of submetacentric or metacentric, two pairs of subtelocentric, and one pair of acrocentric autosomes. X-chromosome is subtelocentric, and Y-chromosome has minute second arm. Habitat. Open field adjacentto riparian forest ( Guadeloupe ); dry evergreen and deciduous rainforests, secondary forest, and grazed and cultivated plots ( Montserrat ); and peri-urban area ( Saint Kitts ), from sea level up to elevations of 355 m . Food and Feeding. There is no specific information available for this species, but the congeneric Brazilian Big-eyed Bat ( C. doriae ) and the Hairy Big-eyed Bat (C. villosum ) are granivores, specialized on eating seeds of Ficus ( Moraceae ). Breeding. No information. Activity patterns. No information. Movements, Home range and Social organization. No information. Status and Conservation. Classified as Endangered on The IUCN Red List. The Guadeloupean Big-eyed Bat is known from seven specimens,it has a restricted distribution, and its habitat is threatened by landscape conversion. It was thought to be extirpated on Montserrat Island because no records were made between 1985 and 2004, following hurricane and volcano activity. In 2005, it was again recorded on Montserrat . Bibliography. Baker & Genoways (1976), Beck et al. (2016), Jones & Baker (1979, 1980), Larsen, R.J. et al. (2007), Pierson et al. (1986).	Simmons, N.B. and A.L. Cirranello. 2022B. Bat Species of the World: A taxonomic and geographic database. Accessed on 10/11/2022.	Phyllostomidae	Chiroderma improvisum	Chiroderma		improvisum	Baker and Genoways	1976	0	Occas. Pap. Mus. Texas Tech Univ.	######	Guadeloupean Big-eyed Bat	None.	Guadeloupe (Lesser Antilles), Basse Terre, 2 km S and 2 km E Baie-Mahault (France)	Guadeloupe, Montserrat, St. Kitts and Nevis (Lesser Antilles)	Not listed.	Endangered	See Jones and Baker (1980), Jones (1989), and Garbino et al. (2020). Subfossil remains have been found on Marie-Galante; see Lenoble (2019).	Mammal Diversity Database. (2023). Mammal Diversity Database (Version 1.11) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.7830771 released 15 April 2023	Chiroderma improvisum	23	Guadeloupean Big-eyed Bat		Theria	Placentalia	Boreoeutheria	Laurasiatheria	CHIROPTERA	VESPERTILIONIFORMES	NA	NA	NOCTILIONOIDEA	PHYLLOSTOMIDAE	STENODERMATINAE	STENODERMATINI	Chiroderma	NA	improvisum	R. J. Baker & Genoways	1976	0	Chiroderma_improvisum	Baker, R. J., & Genoways, H. H. (1976). A new species of Chiroderma from Guadeloupe, West Indies (Chiroptera, Phyllostomatide). Occasional Papers, Museum of Texas Tech University, 39, 2.	https://www.biodiversitylibrary.org/item/241987#page/1/mode/1up	TTU 19900		"Guadeloupe: Basse-Terre; 2 km. S, 2 km. E Baie-Mahault," Lesser Antilles.			improvisum R. J. Baker & Genoways, 1976	NA	NA	Saint Kitts & Nevis|Montserrat|Guadeloupe	North America	Neotropic	EN	0	0	0	Chiroderma_improvisum	0	sciname match	Chiroderma_improvisum	0	IUCN. 2022. The IUCN Red List of Threatened Species. Version 2022-1. https://www.iucnredlist.org. Accessed on [28 September, 2022].	4665	Chiroderma improvisum	ANIMALIA	CHORDATA	MAMMALIA	CHIROPTERA	PHYLLOSTOMIDAE	Chiroderma	improvisum	Baker &; Genoways, 1976		20000000	Chiroderma improvisum	Endangered	B1ab(i,ii,iii)	2016	2015-12-18 00:00:00 UTC	3.1	English	The species is listed as Endangered, it is a range-restricted species, known from less than five locations in the islands of Guadeloupe and Montserrat, in the Lesser Antilles. The extent of occurrence is around 4,000 km² and the area of occupancy is c. 1,000 km<sup>2</sup>. Growing human population on the island is displacing habitats and causing a decline on ;extension and quality of the ;habitat. Besides that, extreme habitat destruction is associated with intense hurricane and volcanic activity.	Little is known about its natural history. Presumably it is frugivorous like other members of the genus. It has been collect in open field adjacent to gallery forest, over streams and under gallery forest (Jones and Baker 1980).	This species is threatened by habitat conversion. Hurricanes and ;volcanic ;activity (Montserrat) are potential threats that could have extirpated the species from its habitats between 1984 and 2005 (Larsen et al. 2007).	This species apparently is rare (Jones and Baker 1980). This species was not captured during the period from 1985–2004 and was thought to have been extirpated because of extensive habitat destruction by recent hurricane and volcanic activity (Larsen et al.  2007).	Unknown	This species is known from Guadeloupe and Montserrat, in the Lesser Antilles (Simmons 2005).	This species is not used.	Terrestrial	There are currently no known specific conservation measures in place for the Guadeloupean Big-eyed Bat.	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 	Phyllostomidae	Chiroderma		improvisum	Baker and Genoways	1976	0	Occas. Pap. Mus. Texas Tech Univ.	39:02:00	Guadeloupean Big-eyed Bat	None.	Guadeloupe (Lesser Antilles), Basse Terre, 2 km S and 2 km E Baie-Mahault (France)	Guadeloupe, Montserrat, St. Kitts and Nevis (Lesser Antilles)	Not listed.	Endangered	See Jones and Baker (1980), Jones (1989), and Garbino et al. (2020). Subfossil remains have been found on Marie-Galante; see Lenoble (2019).	Chiroderma improvisum	1005024	23	Guadeloupean Big-eyed Bat		Theria	Placentalia	Boreoeutheria	Laurasiatheria	CHIROPTERA	VESPERTILIONIFORMES	NA	NA	NOCTILIONOIDEA	Phyllostomidae	STENODERMATINAE	STENODERMATINI	Chiroderma	NA	improvisum	R. J. Baker & Genoways	1976	0	Chiroderma_improvisum	Baker, R. J., & Genoways, H. H. (1976). A new species of Chiroderma from Guadeloupe, West Indies (Chiroptera, Phyllostomatide). Occasional Papers, Museum of Texas Tech University, 39, 2.	https://www.biodiversitylibrary.org/item/241987#page/1/mode/1up	TTU 19900		"Guadeloupe: Basse-Terre; 2 km. S, 2 km. E Baie-Mahault," Lesser Antilles.			improvisum R. J. Baker & Genoways, 1976	NA	NA				Saint Kitts & Nevis|Montserrat|Guadeloupe	North America	Neotropic	EN	0	0	0	Chiroderma_improvisum	0	sciname match	Chiroderma_improvisum	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	Chiroderma_improvisum	1005024	23	Guadeloupean Big-eyed Bat		Theria	Placentalia	Boreoeutheria	Laurasiatheria	Chiroptera	Yangochiroptera	NA	NA	Noctilionoidea	Phyllostomidae	Stenodermatinae	Stenodermatini	Chiroderma	NA	improvisum	R. J. Baker & Genoways	0	Chiroderma improvisum	Baker, R.J. and Genoways, H.H. 1976. A new species of _Chiroderma_ from Guadeloupe, West Indies (Chiroptera: Phyllostomatide) [sic]. Occasional Papers, Museum of Texas Tech University 39:1-9.	https://www.biodiversitylibrary.org/page/55062406	TTU-M19900	holotype		"Guadeloupe: Basse-Terre; 2 km. S, 2 km. E Baie-Mahault," Lesser Antilles.			NA	NA				Saint Kitts and Nevis|Montserrat|Guadeloupe	North America	Neotropic	EN	0	0	0	Chiroderma_improvisum	0	sciname match	Chiroderma_improvisum	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	Phyllostomidae	Chiroderma		improvisum	Baker & Genoways	1976	0	Occas. Pap. Mus. Texas Tech Univ.	39:02:00	Guadeloupean Big-eyed Bat	None.	Guadeloupe (Lesser Antilles), Basse Terre, 2 km S and 2 km E Baie-Mahault (France)	Guadeloupe, Montserrat, St. Kitts and Nevis (Lesser Antilles)	<a href='https://cites.org/eng/app/appendices.php' target='_blank'>Not Listed</a>	<a href='https://www.iucnredlist.org/species/4665/22037238/' target='_blank'>Endangered</a>	See Jones and Baker (1980), Jones (1989), and Garbino et al. (2020). Subfossil remains have been found on Marie-Galante; see Lenoble (2019).		Mammal Diversity Database. (2025). Mammal Diversity Database (Version 2.2) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.15007505	Vampyressina	Chiroderma improvisum; Chiroderma improvisum; Chiroderma improvisum; Chiroderma improvisum; Chiroderma improvisum; Chiroderma improvisum; improvisum; Chiroderme de Guadeloupe; Guadeloupe-Grof Raugenfledermaus; Quirodermode Guadalupe; Guadeloupean Big-eyed Bat; Guadeloupean Big-eyed Bat; Guadeloupean Big-eyed Bat; C. improvisum