VOCAB
CHELONIA
TURTLES & TORTOISES
Only reptile WITH shell
• Only reptile WITHOUT TEETH
•
TURTLES: Live in or near water
TORTOISES: Stay on land
http://www.perlgurl.org/archives/2006/05/hawaiian_honu_the_green_sea_turtle.html
http://www.carcosa.net/jason/blog_images/2005/07/04/african-spurred-tortoise.jpg
LIZARDS
SQUAMATA
SNAKES
http://thecontaminated.com/wp-content/uploads/2008/02/snake-and-kangaroo-1.jpg
http://www.crocodilehunter.com/our-animals/amazing-animals/images/profile_157_250.jpg
JACOBSON’s ORGAN
An extrasensory organ in the roof of a snake's
mouth
• Sharpens its sense of smell.
• Two hollow, highly sensitive saclike structures
• Allows it to track both prey and potential mates
•
http://www.kwic.com/~pagodavista/schoolhouse/species/herps/snktonge.htm
Pit vipers, pythons, and some boas
have HEAT SENSING ORGANS
• “Pit" organ located between the eye and the nostril
on each side of the head.
• Detects heat given off by warm-blooded prey
http://www.kwic.com/~pagodavista/schoolhouse/species/herps/snktonge.htm
http://www.thematzats.com/snakes/images/squeeze.gif
Constrictors
•
Wrap around prey and kill by suffocation
• Ex: Boa constrictors
http://www.eastrock.org/brazil/images/bra19.jpg
VIPERS
•
Inject venom with large movable fangs
Ex: rattlesnakes, copperheads, water moccasins
Images from:
http://www.worsleyschool.net/science/files/rattle/snakes.html
ELAPIDS
•
Inject venom with small fixed (non-movable) fangs
Ex: cobras,
kraits,
coral snakes
http://www.kidsturncentral.com/animals/cobra.htm
AUTOTOMY seen in some lizards
• Self amputation to escape predators
• Can’t regrow
• Costly; lose muscle/stored fat
http://www.californiaherps.com/lizards/images/ecprincipis1dn.jpg
CROCODILIA
Crocodiles & Alligators
Crocodile
Long V-shaped snout
Teeth exposed when jaw shut
Brackish/ocean water
Alligator
Rounder U-shaped snout
Teeth hidden when jaw shut
Fresh water
Images from: http://www.animaldanger.com/australia.php
RHYNCHOCEPHALIA
“spiny crested” lizard relatives
•
•
•
•
Once common
now only two species of tuatara
on islands near New Zealand
Parietal “3rd eye”
Images from:
http://en.wikipedia.org/wiki/Tuatara
http://reptilis.net/rhynchocephalia/overview.html