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
O. tetraspis
T. schlegelii

FAMILY:
GAVIALIDAE

G. gangeticus

DICHOTOMOUS KEY
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Close-up of the head of an adult dwarf crocodile. The upturned snout in this subspecies can easily be seen. O. tetraspis osborni has a much flatter snout. The relatively large eyes of this species also give an indication of its nocturnal foraging activity.

Photograph courtesy of Steve Grenard

ALL IMAGES:
[click on image for enlargement]

	Adult O. t. tetraspis		Head of adult crocodile		Dorsal view of O. t. tetraspis
	Adult O. t. tetraspis		Juvenile O. tetraspis being held		Adult head in water