Exam 3 Herpetology

Chameleonidae

zygodactylous feet- skin crystals change to change color

some oviparous

Dermochelydae

one genus- leatherback turtle; largest extant turtle in the world;endothermic; jelly fish eating

Emydidae

pond turtle: two subfamilies

webbed feet

All omnivorous

Scincidae

Skinks- 115 genus- 1582 species

sandfish- blue toungue

many are limbless

Gekkonidae

3 families- diplodactlynae-eublapharine- Carphodactylidae

950 species- toe pads are setae- spatulanae

transparent eyelids

Crocodilidae

3 genera- 15 speciesp- parental care- 4 chambered heart

crocodylus

mecistops

Osteolaemus

Chelidae

pluerodire: 16 genera 56 species

no parental care

plastron no hinges

Chelydridae

2 genera 2 species

Macrochelys temmnicki- largest FW turtle

mate when shells 8 inches

Acrochoridae

elephant trunk snakes-one genus 3 species

sister to colubrid- skin loose to help grab fish

vivaparous

Varanidae

Monitor-74 species one genera

kinetic skulls- venom gland-

largest lizard- 10 ft

megalania- largest monitor lizard ever

Sphenodontidae

one genera- one species remaining- complete skeletons 130 mya in jurassic

pineal gland

Testudine

Tortoises- 11 genera 40-50 species

fossorial- mainly in africa

grasslands and forest

Gavialidae

gavialis- tomistoma

75mya- tomistoma bogs slow- gharials- fast moving water

Teiidae

whiptails and tegus- long thin tails for balance - diurnal- oviparous- parthogenesis is prevelant

Xenopeltidae

Oviparous- southeast asia

sunbeam snakes- constrictors

Colubridae

255 species- 1800 species

rearfanged- Duvernoys gland

very generalist- diff types locomotion

rat snakes- parental care

Viperidae

Eyelashes independantly evolve

Maxilla flips out 

control dose of venom

parental care widespread in rattesnakes

Helodermatidae

one genus 5 species

male to male combat

thick osteoderms

desert southwest and central ]america