THE FAMILIES AND GENERA OF BATS. 
165 
molars with hypocone much lower than protocone, first lower molar 
with well-developed metaconi d connected with ridge on inner side of 
protoconid, and palatal emargination with sides strongly converging, 
in continuation of the divergent pterygoids. 
Species examined. — Phyllops falcatus (Gray). 
Remarks. — This genus is well differentiated from Ardops by the 
structure of the first lower molar and the form of the palate. 
Genus ARITEUS Gray. 
1837. Ariteus Gray, Mag. Zool. and Bot., II, p. 491, December, 1837 ( flaves - 
cens=aehradophilus ) . 
1876. Peltorhinus Peters, Monatsber. k. preuss. Akad. Wissensch., Berlin, 
p. 433 (achradophilus ) . 
1878. Peltorhinus Dobson, Catal. Chiropt. Brit. Mus., p. 527 (subgenus of 
Stenoderma) , 
Type-species. — Ariteus flavescens Gray = Artibeus achraclophilus 
Gosse. 
Geographic distribution. — Jamaica. 
Number of forms . — The type species is the only form known. 
Characters. — Dental formula : 
-2 3. 1. --3 45 6- 1 2 - 2 ^1-1 _2-2 
1 2 -.1. - 2- 4567 * 2 - 2’ C 1- 2-2’ 
2-2 
3-3 
30. 
Like Ardops , but without the small upper molar ; first lower molar 
with minute though evident metaconid. 
Species examined . — Ariteus achradophilus (Gosse). 
Remarks. — The presence of the metaconid in m x and the absence of 
m 3 distinguish Ariteus from Ardops. Not only is the last upper 
molar absent, but the maxillary is too narrow behind m 2 for the small 
tooth to occur. 
Genus STENODERMA Geoffroy. 
1813* Stenoderma Geoffroy, Descr. de l’Egypte, II, p. 114 ( rufum ). 
1855. Artibeeus Gervais, Exped. du Comte de Castelnau, Zool. Mamm., p. 34. 
(part, undatus=rufus) . 
1869. Histiops Peters, Monatsber. k. preuss. Akad. Wissensch., Berlin, p. 
433 ( undatus=rufus ). 
1876. Stenoderma Peters, Monatsber. k. preuss. Akad. Wissensch., Berlin, 
p. 430, pi. i, figs. 1-6 {rufum). 
1878. Stenoderma Dobson, Catal. Chiropt. Brit. Mus., p. 526 (part, rufum). 
Type-species. — Stenoderma rufum Geoffroy. 
Geographic distribution. — Unknown. 
Number of forms. — The type is the only known species. 
Characters. — Dental formula : 
- 2 3. 1. -- 3 4 5 6 7 .2-2 1-1 2-2 3-3_ 00 
12 -. 1. - 2- 4567*2-2’ c l-l’ pm 2-2 ’ m 3 - 3~ 6 "’ 
