THE FAMILIES AND GENERA OF BATS. 



257 



Genus EUMOPS Miller. 



1878. Promops Dobson, Catal. Chiropt. Brit. Mus., p. 414 (part). Subgenus 



of Molossus. Not Promops Gervais. 

 1900. Promops Milleb, Ann. and Mag. Nat. Hist, 7th ser., VI, p. 471, 



November, 1900 (genus). 

 1906. Eumops Miller, Proe. Biol. Soc. Washington, XIX, p. 85, June 4, 

 1906. 



Type-species. — Molossus californicus Merriam. 

 Geographic distribution. — Warmer parts of America, north to the 

 southwestern United States ; Greater Antilles. 

 Number of forms. — Ten species of Eumops are now recognized. 

 Characters. — Dental formula : 



-2-.l.-(2)-4:567 .1-1 1-1 



12-. 1. 



-4567*2"- 2' °1- 



V 



■pm^j- 



or 



1-1 



3-3 



2-2' m 3-3 = 



;30 or 28. 



Upper incisors large, 

 the slender shafts about 

 one-half as high as that 

 of canine, projecting for- 

 ward and in contact 

 with each other except 

 at slightly diverging 

 tips, the bases expanded 

 posteriorly and almost 

 or quite in contact with 

 canines. Lower incisors 

 subequal, bifid, much ex- 

 ceeded in height by cin- 

 gulum of canines, be- 

 neath which they are 

 crowded in a nearly 

 semicircular row. Ca- 

 nines large and strong 

 but not peculiar in form, 

 the upper with shallow 

 longitudinal groove on 

 anterior face . and dis- 

 tinctly flattened or con- 

 cave on inner side, the 

 lower -with their bases almost in contact (less closely approxi- 

 mated in the smaller species). First upper premolar (pm 2 ) small, 

 but usually well formed and not deciduous (though absent in only 

 known specimen of E. maurus) either crowded between canine and 

 second premolar (pm 4 ) or forced outward from the tooth row when 

 the two large teeth are in contact; posterior premolar normal, its 

 25733— No. 57—07 m 17 



Fig. 46.— Eumops abrasus. Adult male. Sukinam. No. 37456. 

 x2. 



