coral snake
sea snake
sphenodon
garden lizard
C. sphenodon
Snakes
Crocodiles
Turtles
Chameleons
Heloderma
Chameleon
Ophiosaurus
Varanus
Hetttidaclylus
Chameleon
Draco
Sphenodon
8 pairs
10 pairs
12 pairs
20 paris
Amphicoelous
Procoelous
Platycoelous
Gastrocoelous
Lizards have two pairs of pentadactyl limbs
Crocodile has webbed feet
Crocodiles are included under the sub-class Diapsida
The only poisonous lizard is varanus
turtles and tortoises
alligators
snakes
lizards
air
snout
skin
tongue
ribs and reduced limbs
ribs only
reduced limbs
reduced ribs
Lizards
Sphenodon
Snakes
Crabs
krait
viper
sea snake
rat snake
snake
chelone
sea snake
lizard
Mabuya
Chameleon
Hemidactylus
None of these
Garden lizard
Cobra
Chameleon
Python
nervous system
respiratory system
digestive system
excretory system
garden lizard
crocodiles
cobras
vipers
Chelonia
Ophidia
Lacertilia
Rhyncocephalia
viper
krait
sea snake
cobra
Their body is covered with dry, horny, mesodermal scales
Their skin is devoid of glands
They are poikilothermous
Their skeletons are more bony than in amphibians
fishes and amphibians
all the reptiles
lizards and snakes
egg laying mammals
movable eyelids
immovable eyelids
noeyeslids
only nictitating membrane
true snake
lizard
protochordate
pseudosnake
respiratory system
circulatory system
digestive system
nervous system
Glass snake
Coral snake
Rat snake
Blind snake
agile habit
hood
black colour
hood and III large supralabials
Eryx johnii
Naja naja
Enhydrina
Bungarus
garial
alligator
crocodile
both (b) and (c)
king cobra
crocodile
sphenodon
lizard
The eardrum and middle ear are absent in snakes
Turtles are terrestrial whereas tortoises are aquatic
The rami of lower chin is fused in lizards
Crocodiles have a compressed tail
mandibles
maxilla
squamosal
quadrate