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53. The Squirrel Tree-toad (Hyla squirella). 53. a. The Northern Tree-toad (Hyla versicolor). 54. The Wood Frog, adult, (Rana sylvatica). 54. a. The Spring Frog (Rana fontinalis). 54. b. The Scarlet Salamander (Salamandra coccinea).

53. The Squirrel Tree-toad (Hyla squirella). 53. a. The Northern Tree-...

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

1, 1a. Spotted Tree Frog, Hyla maculata; 2, 2a. Bengal Frog, Rana Bengalensis.

1, 1a. Spotted Tree Frog, Hyla maculata; 2, 2a. Bengal Frog, Rana Beng...

Public domain illustrated book page scan, related to zoology, free to use, no copyright restrictions image - Picryl description

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.

49. The Shad Frog (Rana halecina). 50. The Wood Frog, young, (Rana sylvatica). 51. Pickering's Hylodes (Hylodes pickeringi). 52. The American Toad, adult, (Bufo americanus).

49. The Shad Frog (Rana halecina). 50. The Wood Frog, young, (Rana syl...

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

Laub frosch; Laub frosch; Laub frosch; Rana, Frosch; Rana; Frosch; Rana; Frosch; Bufo; Krtte. ; Bufo, Krötto; Bufo Caudatus; á Circulatoribus fictus.

Laub frosch; Laub frosch; Laub frosch; Rana, Frosch; Rana; Frosch; Ran...

Public domain illustrated book page scan, related to zoology, free to use, no copyright restrictions image - Picryl description

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

1. Pana halecina, Spotted Frog, b. under surface of head, c.  under surface of left fore foot, d. under surface of left hind foot; 2. Rana boylii, Boyl's Frog (California), a. b. lateral and under views, c. d. as in preceding,; 3. Rana boylii, Boyl's Frog, young. b. c. as c. and d.  in preceding; 4. Rana septentrionalis, Northern Frog (Fort Ripley, Minnesota). a. b. etc., as in preceding; 5. Rana catesbiana, Catesby's Frog. References as in Fig. 2.

1. Pana halecina, Spotted Frog, b. under surface of head, c. under su...

Public domain image related to botany, botanical artwork, free to use, no copyright restrictions image - Picryl description