FISHES. 
INSECTS. 
WORMS. 
MAMMALIA. 5 
Jaws incumbent ; penis (ufually) 0 ; t;egs without 
white; organs of fenfe, tongue, noftrils? eyes, 
ears; covering, imbricate fcales; fupporters, 
fins; fwim in the tvatir, and fmach. 
Spiracles, lateral pores; jaws, lateral; orga7is of 
fenfe, tongue, eyes, antennae on the head, brain 
o, ears o, noftrils o ; covering, a bony coat of 
mail; fupporters, iect, and in fome, wings; 
fkip on dry ground, and l/uzz. 
Spiracles, obfcure; jaws, various; frequently 
hermaphrodites ; organs of fenfe tentacula, (ge- 
nerally) eyes, brain o, ears o, noftrils o; 
covering, calcareous or o, except fpines ; Jup~ 
porters, feet o, fins o ; crawl in rtioifi places, 
and are mute. 
CLASS 1. MAMMALIA. 
THESE fuckle their young by means of laiSliferous teats. In ex- 
ternal and internal ftru£fure they refemble man : moft of them are 
•quadrupeds; and with man, their natural enemy, inhabit the furface 
of the earth. The largeft, though feweft in number, inhabit the ocean. 
They are diftributed into y Orders, the charadfers of which are 
taken from the number, fituation, and Ifruflure of the teeth. 
I. PRIMATES. Fore-teeth cvtxmg, upper 4 parallel, (except infomc 
fpecies of bats which have 2 or o) ; tujks, folitary, 
that is, one on each fide, in each jaw; teats 2, 
peftoral ; feet, 2 are hands ; siails, (ufually) flat- 
tened, oval ; food, fruits, except a few who ufc 
animal food. 
II. BRUTA. Fore-teeth o in either jaw ; feet with ftrong hoof-like 
nails ; motion, flow ; food, (raoftly) mafticated 
vegetables. 
III. FER.ffi. conic, ufually 6 in each jaw ;/«/r longer; 
grinders with conic projeftions ; feet with claws ; 
claws fubulate; food, carcafes and preying on 
other animals. 
IV. GLIRES. Fore-teeth cutting, 2 in each jaw ; tufks o % feet with 
claws formed for running and bounding; food, 
bark, roots, vegetables, &c. which they gnaw. 
V. 
