T-Shirt money this week, please!

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• T-Shirt money this week, please!
• December HOURS www.nhm.ku.edu

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Reptiles
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I. General Characteristics

• Scales, dry skin, some w/ bony dermal plates
• No larval stage, hard (leathery) shelled egg
• Breathe through lungs
• Legs with 5 toes, claws
• Ectothermic (cold-blooded)

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Tuatara
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II. Tuatara

• Distinctly different order (Rhynchocephalia)
• Nictitating membrane (3rd eyelid)
• Primitive skull structure
• Lizard-like appearance, anatomically very
  different (very slow reproductive cycle)
• A true "living fossil"
• Found only on a few coastal New Zealand Islands

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Turtles
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III. Turtles

• Order Testudines
• 225 species
• hard shell of overgrown ribs
• Lack teeth - beak
• Terrestrial, (tortoise or box turtle)
• Semi-aquatic (terrapin)
• Marine (sea)

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Turtles

• Shell is really a bone, skin, and scale sandwich
• Upper shell - Carapace
• Lower shell - Plastron
• Well developed senses
• Most are herbivores or omnivores

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Marine Turtles

• All 7 species are endangered
• Nest sites are being destroyed
• Trapped and drowned in shrimp nets
• Prized for food and shell

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Turtles - Examples

• See the lazerdisc
• Classroom collection -
• Sulcata Tortoise
• Painted Turtle
• Red-eared Slider

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1. Common Snapping Turtle
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1. Snapping turtle
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2. Stinkpot
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2. Stinkpot
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3. Three-Toed Box Turtle
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3. Three-Toed Box Turtle
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4. Ornate Box Turtle
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4. Ornate Box Turtle
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5. W. Painted Turtle
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5. W. Painted Turtle
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6. Red-Eared Slider
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6. Red-Eared Slider
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7. Soft Shell
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7. Soft Shell
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Species Account

• Species account of the _________________
• Vital Statistics ( scientific name, common name,
  taxonomy)
• Identification (shape, size, markings, general
  description)
• Habitat (biome and range)
• Behaviors (niche, feeding, when active,
  reproduction, etc.)
• Observations (details about our specimen)

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Crocodilians
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IV. Crocodilians

• Order Crocodilia, 3 families, 23 species
• Crocodiles, alligators, caimans and gavials
• laterally compressed tail, all semi-aquatic
• 4 chambered heart
• scales reinforced with bony plates
• teeth set in bony sockets

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Crocodilians

• Limited to tropics and sub-tropics
• Female guards the nest
• Both predator and scavenger, strongest stomach
  acid of any vertebrate
• Am. Alligator saved by the Endangered Species Act
• Adaptations FROM THE VIDEO

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Lizards
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V. Lizards

• Order squamata, suborder sauria
• 3000 species
• external ear opening, moveable eyelids
• Tail in most readily detaches and regenerates

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Lizards

• Keen eyesight, most are insectivores
• Males are territorial
• Display with head bobs, pushup displays, etc.
• Many are arboreal

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VI. Behaviors - Thermoregulation

• "cold-blooded" is more efficient
• Reptiles warm up by behavior, basking
• Pond turtles out on logs
• Snapping turtle at surface
• earless lizard - only head out of sand
• horned lizard - changes color
• Snakes on warm surfaces - roads

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8. Eastern Fence Lizard
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8. Eastern Fence Lizard
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9. Texas Horned Lizard
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9. Texas Horned Lizard
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10. Ground Skink
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10. Ground Skink
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11. Five-Lined Skink
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12. Great Plains Skink
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12. Great Plains Skink
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13. Racerunner
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14. Western Slender Glass Lizard
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14. Western Slender Glass Lizard
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Snakes
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VII. Snakes

• Order Squamata, suborder serpentes
• 3000 species
• no external ears or eyelids
• no legs, skutes
• specially hinged jaw
• Forked tongue, Jacobsen's organ
• Most are rodent eaters
• heat sensing pits and/or slit pupils in some

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VIII. Snakes - Locomotion

• Lateral Undulation
• Most common, most primitive, fish-like
• Concertina Progression
• coiling and uncoiling like a slinky.
• Rectilinear Locomotion
• using just the skutes
• Sidewinding
• adaptation to soft sand, desert.

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IX. Snakes - Feeding

• "Bite and Swallow"
• Most primitive
• Found in garter snake and other aquatic and
  semi-aquatic snakes
• Constrictors
• Most common
• Venomous
• Most highly evolved
• Modified teeth, salivary glands
• Hemotoxins or neurotoxins

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15. Hog nosed Snake
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15. Hog nosed Snake
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16. Worm Snake
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17. Prairie Ring Necked Snake
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18. Flathead Snake
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19. Rough Green Snake
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20. Eastern Yellow Belly Racer
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21. Great Plains Rat Snake
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21. Great Plains Rat Snake
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22. Black Rat Snake
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22. Black Rat Snake
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23. Bull Snake
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24. Prairie King Snake
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25. Common Kingsnake
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26. Milk Snake
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27. Red-Sided Garter Snake
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28. Lined Snake
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29. Texas Brown Snake
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30. Northern Water Snake
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30. Northern Water Snake
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31. Copperhead
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32. Timber Rattle Snake
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32. Timber Rattle Snake