2 The Alligator and Its Allies 
It is this outline of the head that Ditmars (Rep- 
tiles of the World) uses in classifying the Crocodilia, 
which, he says, are all included in the single family 
—Crocodilide. The following list, taken from his 
Reptiles of the World (pp. 68-69), will give a clear 
idea of the number, distribution, and maximum 
size of the members of the order Crocodilia. More 
will be said of some of the members of this list 
later. 
Habitat ae 
A. Snout extremely long and slender, extend- 
ing from the head like the handle of a fry- 
ing pan 
Gavialis gangeticus, Indian Gavial Northern 
India 30 ft. 
Tomistoma schlegeli, Malayan Gavial Borneo and 
Sumatra 15 ft. 
B. Snout very sharp and slender; of trian- 
gular outline 
Crocodilus cataphractus, Sharp-nosed Croco- 
dile W. Africa 12 ft. 
Crocodilus johnstoni, Australian Crocodile Australia 6-8 it. 
Crocodilus intermedius, Orinoco Crocodile Venezuela 12 ft. 
C. Snout moderately sharp; outline dis- 
tinctly triangular 
Crocodilus americanus, American Crocodile | Fla.; Mexico; 
Central and 
S. America 14 ft. 
Crocodilus siamensis, Siamese Crocodile Siam; Java 7 ft. 
Crocodilus niloticus, Nile Crocodile Africa generally] 16 ft. 
Crocodilus porosus, Salt-water Crocodile India and 
Malasia 20 ft. 
D. Snout more oval; bluntly triangular 
Crocodilus robustus, Madagascar Crocodile Madagascar 30 ft. 
Crocodilus rhombiferus, Cuban Crocodile Cuba only 7 ft. 
Crocodilus moreletti, Guatemala Crocodile Guatemala; 
Honduras 7 ft. 
