68 REPTILES. 



R. cultripes, Cuv., which is every where sprinkled with hkck spots; 

 feet amply palmate ; particularly remarkable for a horny and trench- 

 ant scale which invests the vestige of the sixth toe. 



Among the Frogs foreign to Europe we may remark, 



R. paradoxa, L. ; Seb. I, lxxviii; Merrian, Surin. LXXI ; Daud., 

 Gren. XXII, XXIII, (The Jakie), whose Tadpole acquires a size 

 previous to its complete metamorphosis greater than that of any other 

 species of the genus. The loss of an enormous tail and of the en- 

 velopes of the body causes the adult animal to be of smaller dimen- 

 sions than the Tadpole, a circumstance which induced the earlier ob- 

 servers to believe that it was the Frog which was metamorphosed into 

 a Tadpole, or, as they expressed it, into a Fish. This error is now 

 completely refuted. 



The Jakie is greenish, spotted with brown, and is particularly dis- 

 tinguished by irregular brown lines along its thighs and legs. From 

 Guiana. 



There are several other Frogs foreign to Europe, some of which are very 

 large and very ill-determined*. Such is 



R. pipiens, L. ; Catesb. II, lxxii. (The Bull-Frog). Green 

 above, yellowish beneath, spotted and marbled with blacky. 



The hind toes of certain species are almost without a web, but still very 

 elongated J. 



Ceratophris, Bote, 



Are frogs with a large head; skin granulated, either wholly or in part; a 

 membranous prominence to each eye-lid resembling a horn§. In some 



* A closer examination and a review of the numerous Batrachians received at the 

 Museum within a few years, compel me to recal my approbation of the work of 

 Daudin. It is imperfect, and half the figures are taken from altered specimens, and 

 can never serve as guides to the precise determination of species. His HyUe, how- 

 ever, must be excepted; they are much better than his Frogs and Toads. 



f I am convinced that several species are confounded under this name in the 

 United States, species which are similar as to size and colour, but which, among 

 other characters, differ in the relative size of the tympanum. The one in which it is 

 the largest is the mugiens of Merrem, but we cannot depend upon his synonymes. 

 The fig. of Daud. XV III, with a yellow stripe along the back, is a species from India. 

 Add, R. palmipes, Spix, V, 1; — R. tigrina, Daud. XX; — R. virginica, Gmel. Seb. I, 

 lxxv, 4, or halecina, Daud., or pipiens, Merr., Catesb. LXX (a). 



X Rana ocellaia, L., Seb. I, lxxv, 1, Lacep. I, xxxviii, Daud. XIX; — R. gigas, Spix, 

 I; — R. pachypus, Id. II. j — R. coriacea, Id. V, 2; — R. sibilatrix, Pr. Max.; — R. macu- 

 lata, Daud. XVII, 2; — R. rubella, lb. I; — R. typhonia, lb. 4, which is not, as Merrem 

 thinks, the virginica, Gm. ; — R. punctata, lb. XVI, 1 ;— R. mystacea, Spix, III, 2 — 3; 

 — R. militaris and R. pygmaa, Id. VI; — R. labyrinthica, Id. VII (b). 



§ Ceratophris varius, B, or Rana cornuta, Seb. I, lxxii, 1, 2; — Tiles., Mag. de 

 Berl. 1809, 2nd Trim. pi. iii, and Krusenst. Voy. pi. vi, or Ceratophris dorsata, Pr. 

 Max. 2me livr.; — Cerat. Spixii, Cuv., or R. megastoma, Spix, IV, 1; — R. scutata, 

 lb. 2; — Cerat. Daudini, Cuv., Daud. xxxviii; — Cerat. clypeata, Cuv. 



[g2p° (a) R. clamitans, Daud. XVI, is also cited as a species, but it is the young of 

 R. pipiens. — Eng. Ed. 



0*5° (b) In the annals of the Lyceum, America, the following species are enume- 

 rated: — R.fontanalis, L. C; — R. palustris, Id.; — R. sylvatica, Id.; — R.pumila, Id.; — 

 R. gryllus, Id.; — R. nigrita, Id.: Ann. of the Lyceum. —Eng. Ed. 



