Linneus and Cuvier nearly agree in their primary divisions of ani- 
mals: vertebrated and invertebrated, &c. 
( With warm red blood oo cha Mammalia. 
Heart with two ven- pe aisead 
tricles. Two auricles. P Birds. 
no teats. 
Vertebrated. < 
Cold red blood. keen ah Reptiles. 
Heart with one ven- cocigal Shigeo Sa 
; ; Gills ; without ; 
tricle. One auricle. Fishes. 
i lungs. 
=) 
) With antenne. 
| Not suffering 
transformation. 
Knotted spinal 
marrow. Arti- 
culated mem- 
bers. Gills. 
Crustacea. 
White and cold blood. ; 
: With antenne. 
Invertebrated.< Heart with one ven- ; 
i 5 ; Suffering trans- 
tricle. No auricle. f ; 
ormation. Face 
Articulated ae 
members. Stig- \ 
mata. 
Simple spinal 
marrow. No ar- 
H | ticulated mem- } Mollusca. 
L 
J bers. J 
ee L—.-—— 
The simplest and broadest outline of difference is sufficient for the 
present occasion ; the proposition being to trace a continuity of agree- 
ment amongst the most widely discriminated classes. 
