MUSEUM OF COMPARATIVE ZOOLOGY. 155 



rounded convexity of equal width with the exposed portions of the cndo- 

 turbinals. The second cndoturbinal appears as a nodvde between the 

 transverse lamina and the second endoturbinal ; the third and fourth 

 nuK'li as in otlier yenera, the lower border of tlie tliird plate being visi- 

 ble from the lower edge of tlie series. 



Jihynronydariti naso. — The ectoturbinal a\)sent. IMie remaininu' three 

 endoturbinals closely resemble one another. The lirst projects in ad- 

 vance beyond the third no nioi'e than tlie third projects beyond the 

 fifth. The free portion of the first small, yet reaches the level of the 

 anterior of the second premolar. Tiie plates on the median surface 

 while contiguous leave exposed a larger surface than is the case in any 

 other genus of the jMolossi. 



Noctilio leji())'iiius (Plate VII. fig. T)). — The ectoturbinal inflated nearly 

 twice the thickness of the first endoturbinal, and nearly equalling it in 

 length. The median aspect of ethmoturbiual closely resembling Molos- 

 sus. The free portion of each plate of about equal width. The naso- 

 turbinal of great width anteriorly, and almost entirely concealing the 

 maxilloturbinal. 



Mormops mer/apliylla. — The encrauial surfoce presents the following 

 features. The suigle ectoturbinal foramen is small, '^fhat for the first 

 endoturbinal is conspicuous. The extent of the non-perforatc space ap- 

 pears to be enormous as compared with the same space in other genera. 

 The ectoturbiual is a iiiere rounded point at the base of the first endo- 

 turbinal. The endoturbinal series closely resembles the same in the 

 Vespertilionidfc. The first endoturbinal is Avithout the lobe present in 

 Cliiionycteris. Its mider surfixce is concave at the free produced portion, 

 and conceals the unusually long maxillotui'binal. The second ethmotur- 

 biual is very slender and oblique. It is continuous above with the first 

 thus differing from the arrangements seen in A'esjiertilinnidje. The 

 third plate is obscure, if not absent. It is ai)pareutly continuous witli 

 the crista galli. 



Chil<myrtn-is ruhiginosa. — The first ectottn-binal subglobose, one 

 fourth the length of the first endoturbinal. The free projecting por- 

 tion of the first endoturbinal is deeply concave beneath, and com])letely 

 covers in the maxilloturbinal, as in the Vcspertilionid;e. It reaches as 

 far as the first premolar. This plate bears upon its summit a lobule, as 

 in the Phyllostomididfc. The second and third endoturbinals are sim})le, 

 non-revolute, nearly vei'tical, the third being the broader. 



Desrnodus rufus (Plate VII. fig. 1). — Tlie ectoturbinal is inilati'd, and 

 nearly the length of the first endoturbinal. The first endoturbinal is 



