72 REPTILES. 



BOMBINATOR, MeiT., 



Only differs from the others in the tympanum being concealed under the 



skin ; such in France is the 



Rana hombina, Gm. ; Crapaud a ventre jaune; Roes. XXII; 

 Daud. XXVI. The smallest and most aquatic of all the Toads of 

 that country. It is greyish or brown above; a black-blue with 

 orange spots beneath ; the hind feet completely palmate and almost 

 as long as those of Frogs, so that it leaps nearly as well. It lives in 

 marshes, and couples in June ; the eggs are produced in little balls, 

 and are larger than those of the preceding species*. The 



Rhinellus, Fitzing. — Oxyrynchus, Spix, 

 Has a muzzle pointed anteriorly f. We should approximate to it the 



Otilophis, Cuv. 



In which the muzzle is also angular, and where there is a crest on each 

 side of the head which extends over the parotid. The Crapaud perle, 

 {Ran. margaritifera, Gm.) Daud. XXXIII, is its type. 



Breviceps, Merr. — Engystoma, Fitzing. part of. 



Toads without a visible tympanum or parotid, in which the body is oval, 

 head and mouth very small, and the feet but slightly palmatedt. 



A more essential difference is that which has separated the Pipae of 

 Laurenti from all the great genus Rana. 



PiPA, Laur. 



This subdivision is distinguished by a horizontally flattened body ; a 

 broad and triangular head; by the absence of a tongue; by a tympanum 

 concealed under the skin; by small eyes placed near the edge of the 

 upper jaw; by anterior toes, each of which is divided at the extremity 

 into four small points ; and, finally, by the enormous larynx of the male, 

 formed like a triangular osseous box, inside of which are two moveable 

 bones, which can be made to close the entrance to the branchia3§. 



* Add, Bzifo venlricosus, Daud. XXX, 2, the turgidity of which is exaggerated. 



f Biifo proboscideus, Spix, XXI, 4;— the neighbouring species figured on the same 

 plate, B. semilineatus, B. granulosus, B. acutiroslris, and those of pi. xiv, naricus and 

 nasuius, connect this subgenus too closely with the common Toads to be easily re- 

 tained. 



X Engystoma dorsattim, Cuw., or Bufo gibbosus, Auct. Seb. II, xxxvii, No. 3, Daud. 

 XXIX, 2; — Eng. marmoratum ; Eiig. graiiosum, Cuv.: new species, one from India, 

 the other from the Cape. The mouth of the Eng. siirinamense, Daud. XXXIII, 2, 

 is already larger, as well as in the B. globulosus and albifrons, Spix, XIX. N.B. The 

 Erig. ovalis, Fitz., is a Dactylethra; his Eng. ventricosa, Daud. XXX, 2, is a Bonihi- 

 nator. 



N. B. The Bufo ephippium, Spix, XX, 2, of which Fitzinger makes his genus Bra- 

 CHYCEPHALUS, on account of there being but three toes to all the feet, may be a 

 young specimen badly preserved or incorrectly figured. 



§ Described by Schneider under the name of Cisia siernalis. 



