246 BULLETIN 57, UNITED STATES NATIONAL MUSEUM. 
tic in outline when viewed from above, the outer lobe larger than 
inner. Molars strictly normal ; m 1 and m 2 with hypocone indicated 
by thickening of posterior portion of inner segment ; m 3 with well- 
developed second commissure, but no trace of third ; m 1 and m 2 with 
low protoconid and high entoconid, m 3 with protoconid as in the 
other teeth, but with entoconid practically absent. Skull rather 
slender and rounded, the lachrjunal breadth less than length of ros- 
trum, which in turn is about three-fourths that of braincase; depth 
of rostrum about equal to that of braincase; sagittal crest barely in- 
dicated ; antorbital foramina opening conspicuously forward, but not 
surrounded by noticeable ridges; palate slightty domed, but its lon- 
gitudinal concavity less than the lateral; anterior portion of palate 
entire or with two minute foramina ; basisphenoid pits large, sepa- 
rated by a narrow median ridge; audital bullae less emarginate on 
inner side than usual in the family Molossidae. External form with 
no striking peculiarities ; ear extending not quite to nostril when laid 
forward, broadly triangular in general outline, the keel very low and 
anti tragus small ; tragus rather large for a member of the group, 
flattened, evenly rounded above ; anterior bases of ears near together 
on forehead; muzzle pad very slightly indicated, its ridges without 
horny processes; front of upper lip thickly beset with very slender 
spoonhairs; both upper and lower lip scarcely expanded and little 
wrinkled ; wings, legs, tail, and membranes of the usual Molossine 
type. 
Species examined . — Eomops whitleyi (Scharff). 
Remarks . — This genus, immediately recognizable among' Molossine 
bats by the peculiar form of the lower incisors, more closely resembles 
the South American Molossops than it does any of the known Old 
World groups. The unusually slight emargination of the audital 
bullse is a somewhat primitive character, and the backward prolonga- 
tion of the crown of the lower incisor strongly suggests the Phyllo- 
stomidse, but in other respects the genus is strictly Molossine. 
While there is no question as to the distinctness of Eomops from 
all currently recognized genera, I feel some doubt as to its relation- 
ship to the Myopterus of Geoffroy. This genus, based on an animal 
supposed to be from Senegal, was determined by Peters to be the same 
as the South American Molossops at a time when the existence of a 
bat of this kind in the Old World was unknown. During my visit 
to Paris, in 1905, the skull of the type (all that remained when it was 
seen by Peters in 1869) could not be found; but from the figure pub- 
lished by Gervais a and the measurements given by Peters, & it is evi- 
dent that in cranial characters the animal was much more like 
Eomops than Molossops. This is shown by the general outline of the 
« Hist. Nat. des Mammif., I, p. 221. 
b Monatsber. k. preuss. Akad. Wissensck., Berlin, 1869, p. 402. 
