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Herpetology

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  1. Herpetology Spring 2004

  2. Pennsylvania's Herpetofauna(Translation: Our state’s reptiles & amphibians) • Frogs & Toads 16 species • Salamanders 22 “ • Turtles 13 “ • Lizards 5 “ • Snakes 21 “

  3. Salamanders

  4. Salamander Life Cycle

  5. Spermataphores

  6. Salamander Eggs

  7. Salamander Larvae

  8. Balancers on larval ambystomid

  9. SalamandridaeRed-spotted NewtNotopthalmus viridescens Adult Newt Red Eft

  10. AMBYSTOMATIDAEJefferson SalamanderAmbystoma jeffersonianum

  11. Jefferson Salamander

  12. AMBYSTOMATIDAESpotted SalamanderAmbystoma maculatum

  13. AmbystomatidaeMarbled SalamanderAmbystoma opacum

  14. AmbystomatidaeEastern Tiger SalamanderAmbystoma tigrinum

  15. PlethodontidaeNorthern Dusky SalamanderDesmognathus fuscus

  16. PlethodontidaeMountain Dusky SalamanderDesmognathus ochrophaeus

  17. PlethodontidaeRed-backed SalamanderPlethodon cinereus

  18. PlethodontidaeSlimy SalamanderPlethodon glutinosus

  19. PlethodontidaeFour-toed SalamanderHemidactylum scutatum

  20. PLETHODONTIDAETwo-lined SalamanderEurycea bislineata

  21. Two-lined Salamander

  22. PlethodontidaeSpring SalamanderGyrinophilus porphyriticus

  23. PlethodontidaeNorthern Red SalamanderPseudotriton ruber ruber

  24. Frogs and Toads

  25. Toad Topography

  26. Frog Topography

  27. Anatomy

  28. Pelobatidae: SpadefootsEastern Spadefoot ToadScaphiopus hobrooki

  29. Bufonidae: Toads Warts: one or two in each large spot. Three+ in each large spot.

  30. American ToadBufo americanus

  31. Fowler’s ToadBufo foweleri

  32. Hylidae: Tree Frogs

  33. Gray & Cope’s Tree FrogHyla versicolor and Hyla chrysocelis

  34. Spring PeeperPseudacris crucifer Hear Me!

  35. Ranidae: True Frogs

  36. BullfrogRana catesbeiana

  37. Green FrogRana clamitans

  38. Pickerel FrogRana palustris

  39. Leopard FrogRana pipiens

  40. Wood FrogRana sylvatica

  41. Snakes

  42. Scales

  43. Anatomy: Anal Plate

  44. Pennsylvania Snakes belong to two families: • Colubridae • Viperidae

  45. Poisonous or Venomous?

  46. Massasauga

  47. Eastern CottonmouthAgkistrodon piscivorousNot found in Pennsylvania

  48. Northern Water SnakeNerodia sipedon