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bullfrog

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55-58. Teeth, for titles see Notes 59. Portion of the lower jaw of the Jersey Gavial (Gavialis neocesariensis). 60. The Marsh Tree-toad (Rana palustris). 61. The Cricket Tree-toad (Hylodes gryllus). 62. The Northern Bullfrog (Rana horiconensis).

55-58. Teeth, for titles see Notes 59. Portion of the lower jaw of the...

Public domain scan of 19th-century zoological illustration, free to use, no copyright restrictions image

46. The Common Toad, young, (Bufo americanus). 47. The Hermit Spade-foot (Scarphiopus solitarius). 48. The Bullfrog (Rana pipiens).

46. The Common Toad, young, (Bufo americanus). 47. The Hermit Spade-fo...

Picryl description: Public domain image of a frog, free to use, no copyright restrictions.