ALLIGATOR. 



AI.I.K1ATOR. 



1.1 



those of the tail v* much larger, and amount to 38 in all, 19 before species show* not the slightest trace at thane post-orbital perfon.' 

 the union of the two lateral eerie*, and a* many afterword*. The which are so coiwpicuou* in the crocodile of the Mile, and more or 

 colour is a deep graeniah-hrown above, and light-yellow on the under lea* developed in all the other specie*. 



Skeleton of Alligator (CnmJilia Luciiu} 



Trunk of the same ; ventral aspect. 



Alligator (Croeadiltu Lucius). 



Outline of the brad and anterior part* of 

 Grocoitilut Lveita, Men from aburc. 



surface of the body ; the aides regularly marked with alternate bauds 

 of both theae colours. 



2. TheCayman (Crocodiltu palpebrvitufuvier) in irt once distinguished 

 from all other species by the bony structure of the eyebrows, which 

 form large knobs of the size of a man's fist ; and by the small extent 

 of the membrane connecting the ton of the hind feet, which in 

 prepared ipecimens can scarcely be recognised. The skull <( this 



Thia is the common species df Surinam and Ouiana: it in there 

 called Cayman, a word most probably of native origin, whilst the 

 following species, which is likewise found ill the same countries, tlmn^Ii 

 it* more appropriate locality would upixsir to be Hra/.il ;iinl Huenos 

 Ayres, is distinguished by the name of Crocodile. The Cayman does 

 not attain so large a size as the other species, nor will he venture to 

 attack a man on dry land, or even in the water, mi long on he keeps h! 

 legs and nnns in motion. The feni.-iln ile|it her eggs in n 

 layer, and after covering them sli^litly with sand, nK-ui'i , ilni i 

 to the vivifying influence of the tropical sun, without taking any 

 further charge either of them or of the young progeny. 



8. The Crocoililm Irigonatiui "f Srhm-ider is a species of en" 

 exhibiting all the peculiar characters which properly 'lii-tinKuinh the 

 alligator* of America, and j-et suspected to be of African origin. It i* 

 even so elwly allied in form and general characters to the Cayman, 



