1. Pana halecina, Spotted Frog, b. under surface of head, c. under surface of left fore foot

---

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., Suckley, George 1830-1869, Cooper, J. G. James Graham 1830-1902

---

Size: 3760px × 5010px
Photo credit: © Artokoloro / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., 1830-1869, 1830-1902, boyl, boylii, california, catesbiana, catesby, cooper, foot, fore, fort, frog, george, graham, halecina, hind, james, left, minnesota, northern, pana, rana, ripley, septentrionalis, spotted, suckley, surface, young