FAMILY:
ALLIGATORIDAE

A. mississippiensis
A. sinensis
C. crocodilus
C. c. apaporiensis
C. c. fuscus
C. latirostris
C. yacare
M. niger
P. palpebrosus
P. trigonatus

FAMILY:
CROCODYLIDAE

C. acutus
C. intermedius
C. johnstoni
C. mindorensis
C. moreletii
C. niloticus
C. novaeguineae
C. palustris
C. porosus
C. rhombifer
C. siamensis
M. cataphractus
O. tetraspis
T. schlegelii

FAMILY:
GAVIALIDAE

G. gangeticus

DICHOTOMOUS KEY
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3 metre Australian saltwater crocodile basking on a sand bank (Daly River, Northern Territory). This area of the Daly River is also populated by Australian freshwater crocodile (C. johnstoni) which are barely tolerated by salties. Salties outcompete and kill freshies in most circumstances where their ranges overlap. Further inland, the Daly river becomes less saline, and the density of saltwater crocodiles declines. Despite this, salties can tolerate a wide range of salinities and can be found over 100km inland on the river.

Photograph © Adam Britton. All rights reserved.

ALL IMAGES:
[click on image for enlargement]

	Crocodiles leaping to capture food		Adult crocodile basking in sun		Very large adult crocodile
	Gomek, a very large captive adult		Gomek being fed		Saltie on sandbank