NYCTINOMUS. 

 List of Specimens. 



Cat. No. 



Specimens. 



Locality. 



Presented by 



Nature of Spec'n. 



2347 

 5214 

 617-t 



Fort Yuma, Ca.\. 

 Cape St. Lucas. 

 Cape St. Lucas. 



Maj. G. H. Tliomas. 

 Jolin Xautus. 

 Jolin Xautus. 



lu alcohol (type) 

 lu alcohol. 

 In alcohol. 



Fam. NOCTILIONID^. 



NYCTINOMUS, Geoff. 



Nyctinomus, Et. Geoffroy, Desc. de I'Egypte (Hist. Nat.), II, 1814. — Is. 

 Geoffroy, Ann. des Sc. Nat. 1, 1824, 337. — Castelnau, Exp. d'Auier. 

 Sud ; Mammif. pi. xii, f. 2. 



Ears generally joined ; lips thick, pendulous, grooved ; nose 

 sharp, well defined ; tragus obtuse, broad and square ; tail pro- 

 duced beyond the interfemoral membrane nearly half its length ; 

 great toes separated from the others, and fringed on their outer 

 side. 



Fig. 5. 



N. nasutus. 



Skull. — The cranium is inflated, with no appearance of crest^ 

 and very papery. The anterior nares small. Intermaxillary 

 bones rudimentary ; facial angle small. Auditory capsules large. 

 Lower jaw slender and elongated. 



