54 
MAMMALIA. 
about two inches long; without any tail; expanse of the wings 
about ten inches. Inhabits Surinam, Cayenne, &c. 
Genus 12.— Mormoops. — Leach. 
Generic Character. —Incisory teeth |; canines j—J; grinders 
; total 32. The two intermediate incisory teeth in the up¬ 
per jaw largest; ears large and close, furnished with auricles; 
nasal appendage single, erect, confluent with the ears; index fin¬ 
ger with two joints ; middle finger with four ; the others with 
three; tail, except the last joint, enveloped in the membrane. 
Mormoops Blainvillii. — Blainville’s Mormoops. 
Plate VII. fig. 5. 
Nasal leaf plaited; ears above with double lobes ; labial pro¬ 
cesses divided. Inhabits Jamaica. 
Genus 13.— Medateus. — Leach. 
Generic Character. —Incisory teeth canines J; molars 
; total 30. The two intermediate incisory teeth in the up¬ 
per jaw longest; two nasal appendages, the one vertical, the 
other lunate and horizontal; lips furnished with a series of 
warts ; without a tail. 
Medateus Lewisii. — Lewis’s Medateus. 
Fur blackish; nasal leaf vertical, spear-shaped; ears rounded ; 
expanse of wings seventeen inches.—Linnaean Transactions, 
xiii. p. 81. 
Genus 14.—Megaderma.— Geoffroy. 
Generic Character .—Incisory teeth °; canines J—*; molars 
5 Z 51 tota l 26. The canine teeth are triangular in the upper, 
and inclining backwards in the lower jaw; ears very large, and 
united ; interior ears much developed; nose with three appen¬ 
dages, one erect, one foliaceous or horizontal, and the third 
