MAMMALS OF NORTHERN COLOMBIA — ^HERSHKOVITZ 447 



A. j. trinitatis Andersen, type locality, Trinidad {grenadensis Andersen, with 

 type locality, Grenada, W. I., a synonym). 



A. j. fraierculus Anthony, type locality, Portovelo, El Oro Province, southern 

 Ecuador. 



A. j. planirostris Spix, type locality, Bahia, Brazil. 



Artibeus lituratus lituratus Olfers, type locality, Paraguay. 



A. l.fallax Peters, type locality, Guiana. 



A. I. 'palmarum Allen and Chapman, type locality, Trinidad. 



A. I. praeceps Andersen, type locality, Guadeloupe, W. I. (doubtfully dis- 

 tinct from palmarum; dominicanus Andersen, Proc. Zool. Soc. London, 

 1908, p. 249, a nornen nudum). 



A. I. aequatorialis Andersen, type locality, Zaruma, southern Ecuador (doubt- 

 fully distinct from palmarum) . 



So fear as can be determined from available material, separation of 

 the large lituratus from the small A. jamaicensis is based solely on 

 size. There is considerable range of variation in size within each of 

 the species, and old individuals of large races of jamaicensis may 

 equal, and even exceed, in size small (usually subadult) individuals of 

 small races of lituratus. In view of the difficulty in distinguishing 

 subadults from fully adults, it is not always possible to separate the 

 species, especially of their respective West Indian and North Ameri- 

 can representatives. In general, the forearm of lituratus is normally 

 longer than 62 mm. to a maximum of about 75 mm. In jamaicensis, 

 the forearm is usually less than 63 mm. and may be as short as 50 

 mm. Mensural differences between the two species in other external 

 and in cranial characters are in the same proportions. 



None of the specimens of palmarum collected in northern Colombia 

 bears a third molar in the upper jaw. The posterior edge of the second 

 molar in this series varies from deeply emarginate to convex. In 

 some individuals there is a bony ledge of the maxillary behind the 

 second molar; in others the ledge, which could support a third molar, 

 is lacking. The localities of these bats are included within the range 

 of palmarum as given by Andersen, and they show agreement with 

 this form, as compared with fallax, in size and in the consistent ab- 

 sence of M^ 



ARTIBEUS CINEREUS BOGOTENSIS Andersen 



? Dermanura quadrivittatus, Bangs, Proc. New England Zool. Club, vol. 1, p. 101, 



1900 (Pueblo Viejo). 

 Artibeus cinereus hogotensis Andersen, Ann. Mag. Nat. Hist., ser. 7, vol. 18, 



p. 421, 1906. 



Type locality. — Curiche, near Bogota, Colombia. 



Specimens collected. — One. Sierra Negra, Sierra de Perijd, 1 female. 



Measurements. — Head and body, 58; hind foot, 12; ear, 17; forearm, 

 40.8; third metacarpal, 37.6; first phalanx of third digit, 14.7; second 

 phalanx of third, 20.5; length of skuU to front of canines, 19.9; mas- 

 toid width, 10.0; width of brain case, 9.3; zygomatic breadth, 11.3 



