pelobates. 205 



8. Pelobates cultripes. 

 (Plate X.) 



Buna cultripes, Ouvier, Regne Anim., 2nd ed., ii, p. 105 (1829). 



Rana calcarata, Michahelles, Isis, 1830, p. 807, pi. — . 



Cultripes provincialis, Muller, Isis, 1S32, p. 538, and Zeitscbr. f. 



Physiol, iv, 1832, p. 212. 

 Bufo calcaratus, Scbinz, Nat. Rept., p. 233, pi. xcvi, fig. 2 (1833). 

 Bombinator fuscus, Duges, Recb. Osteol. Batr., p. 7, pi. ii (1834). 

 Belobates cultripes, Tschudi, Class. Batr., p. 83 (1S3S) ; Duuieril 



& Bibron, Erp. Gen., viii, p. 483 (1841) ; Gunther. Cat. 



Batr. Sal., p. 41 (1858) ; Schreiber, Herp. Ear., p. 92 (1875) ; 



Lataste, Herp. Gir., p. 263 (1876); Boulenger, Cat. Batr. 



Ecaud., p. 438 (1882); Heron-Royer, Bull. Soc. Et. Sc. 



Angers, xv, 1886, p. 77; Heron-Royer <fc Van Bambeke, 



Arch. Biol., ix, 1889, p. 275; Bedriaga, Bull. Soc. Nat. 



Mosc, 1889, p. 519, and Anmh. Rept. Portug., p. 19 (1889) ; 



Boulenger, Proc. ZooL Soc, 1890, p. 664, and 1891, p. 616, pi. 



xlvi, fig. 8. 

 Belobates fuscus, part., Bonaparte, Icon. Faun. Ital., Rett. Anf., 



(1838). 

 Didocus* calcaratus, Cope, Journ. Ac. Philad. (2), vi, 1866, p. 81. 



In the tongue and vomerine teeth this species 

 entirely agrees with its congener, but it differs in the 

 occasional presence of small, grain-like teeth on the 

 pterygoids and parasphenoid ; these teeth are quite 

 rudimentary, and the mucous membrane has to be 

 removed to ascertain their presence. I have found 

 them in three specimens from France (Nantes, Bor- 

 deaux, south of France). In one specimen there 

 are about ten teeth on the parasphenoid, at the base 

 of the longitudinal branch of the J_-shaped bone, and 

 two pterygoid teeth close together on the left side ; 

 another has the same number on the parasphenoid and 

 a series of four on the pterygoids; and in a third 

 there are eight teeth on the right pterygoid, none 

 being present on the parasphenoid nor on the right 

 pterygoid. 



* The genus Didocus was founded upon a young specimen, on the 

 erroneous assumption that in Belobates cultripes the temporal roof is 

 developed before the tail of the larva has disappeared. I have examined 

 the skeleton of a young but fully transformed specimen from Beziers, 

 Herault, which shows both a large fronto-parietal fontanelle, bordered 

 by smooth fronto-parietals, and an uncovered temple, thus answering 

 in every respect the definition of the genus so rashly established by 

 Cope more than twenty years ago, and still maintained by him in his 

 latest writings. 



