— 19 - 
Mr. Bouleiiger (“Fauna of British India,” Reptilia, 1890, 
pp. 4, 5) points out the following differences between these 
two species : — 
C, porosus. 
(1) Seventeen to nineteen upper 
teeth on each side. 
(2) Snout If to times as long 
as broad at the base. 
(3) Snout with a more or less 
strong ridge on each side 
in front of the eye. 
(4) Four teeth in each praema- 
xillary bone (in adults). 
(5) Praemaxillo-maxillary su- 
ture, on the palate, directed 
backwards or W-shaped. 
(6) Postoccipital scutes usually 
absent, sometimes small 
and irregular. 
(7) Dorsal scutes forming four to 
eight longitudinal series. 
(8) Dorsal scutes, in a transverse 
series, separated from each 
other by the leathery skin. 
C. 2xilustris. 
(1) Nineteen upper teeth on each 
side. 
(2) Snout If to If times as long 
as broad at the base. 
(3) Snout without any ridges. 
(4) Five teeth in each praemaxil- 
lary bone. 
(5) Praemaxillo-maxillary sutu- 
re, on the palate, trans- 
verse, nearly straight, or 
curved forwards. 
(6) Postoccipital scutes small, 
consisting of two pairs in 
a transverse series. 
(7) Dorsal scutes forming four, 
rarely six, longitudinal 
series. 
(8) Dorsal scutes, in a transverse 
series, suturally united to 
each other. 
( VMe Boulenger, “ Fauna of the Malay Peninsula,” Reptiles, 1912, p. o.) 
2. — Geographical Distribution of Indian Crocodiles. 
Garialis gangeticus. 
“ Indus, Granges, and Brahmaputra rivers and their larger 
tributaries ; also Mahdnadi of Orissa, and Koladyne river, 
Arrakan, but not the Nerbudda, Tapti, Godavari, Kistna, 
Irrawaddy, or other rivers of India or Burma.” (Boulenger, 
“Fauna of British India,” Reptilia, 1890, p. 3.) 
Crocodilus porosus. 
Widely distributed in the East Indies ; Malabar Coast, 
Ceylon, East coast of India, Bengal, Burma, Siam, South 
China, Malay Peninsula and Archipelago, Philippines, New 
Guinea, North Australia, Solomon Islands, Fiji Islands. 
