444 PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 99 



9.3 (c.) ; interorbital breadth, 4.6; maxillary tooth row, 5.4 (c); length 

 of mandible to front of incisors, 11.7. 



Remarks. — The six described species of Vampyressa are separable 

 mto two groups. The first includes the small species thyone Thomas, 

 minuta Miller, ^ and venilla Thomas.^ In these the forearm measm-es 

 30 to 33 mm. in length, the skull between 17 and 19 mm. in greatest 

 length. The second group includes the larger species, pusilla Wag- 

 ner,3 nymphaea Thomas," and melissa Thomas,^ with forearm between 

 35 and 38 mm., skull 20 to 22 mm. in greatest length. The geo- 

 graphic range of both groups are coextensive in South America. Only 

 the small minuta is known from Central America (Panama). Both 

 the small V. thyone and the large V. nymphaea have been recorded 

 from the Choc6 in western Colombia, and two specimens of thyone 

 (identified by Thomas) are available from Amazonian Ecuador. V. 

 minuta is almost certainly an absolute synonym of thyone; hence the 

 use of the latter name for the specimen of the present collection. 



CHIRODERMA JESUPI Allen 



Chiroderma jesupi Allen, Bull. Amer. Mus. Nat. Hist., vol. 13, p. 88, 1900. 



Type locality.— C&csLgualito, a plantation, now abandoned, 20 miles 

 east of Santa Marta on the road to Rio Hacha, Magdalena, Colombia. 



ARTIBEUS JAMAICENSIS JAMAICENSIS Leach 



Artibeus Jamaicensis Leach, Trans. Linn. Soc. London, vol. 13, pt. 1, p. 75, 1821. 

 Uroderma planirosiris, Bangs, Proc. New England Zool. Club, vol 1 p 101 



1900 (Santa Marta). 

 Artibetis planirostris, Allen, Bull. Amer. Mus. Nat. Hist., vol. 20, p. 458, 1904 



(Mama toco). 

 Artibeus jamaicensis, Andersen, Proc. Zool. Soc. London, 1908, p. 247 (part). 

 Type locality. — Jamaica. 



Specimens collected.— Three. El Salado, eastern slope of Sierra 

 Nevada de Santa Marta, 1 male, 1 female; Rio Guaimaral, 1 male (in 

 alcohol) . 



Measurements.— Head and body, 75, 74; hind foot, 14, 15; ear, 22, 

 22; forearm, 55.6, 54.8 (of the male in alcohol, 56.0); length of skull 

 to front of canine, 27.3, 26.6; zygomatic breadth, 16.1, 16.1 ; width of 

 brain case, 11.9, 11.9; mastoid breadth, 14.1, 14.3; maxillary width 

 across first molars, 11.6, 11.1; mdth across cingula of canines, 7.5, 

 7.2; canine to back of second molar, 9.9, 9.4; canine to back of third 

 molar (in male only), 10.1; length of mandible to front of incisors, 

 18.3, 18.4. 



i?ewar^-g. — According to Andersen's classification of the genus 



» Proc. U. S. Nat. Mus., vol. 42, p. 25, 1912. 



' Ann. Mag. Nat. Hist., scr. 9, vol. 13, p. 532, 1924. 



5 Arch. Naturg., vol. 1, p. 3G6, 1843. 



* Ann. Mag. Nat. Hist., scr. 8, vol. 4, p. 230, 1909. 



» Ann. Mag. Nat. Hist., ser. 9, vol. 18, p. 157, 1926. 



