1856.] 153 



and Siobold and Schlegel's excellent drawing of Trigonoccphalus Blomhoffii, 

 and are no doubt the same. 141 abdonj. so. ; 39 subcaudal ; 21 rows of scales, 

 (25, according to Schlegel.) Total length of one specimen 1 foot 4^ inches, 

 (Fr. :) length of tail 1 inch 7 lines ; length of another specimen 1 foot f inches ; 

 of tail 2 inches 4 lines. The tail, therefore, appears to be somewhat shorter 

 than is indicated by the description of Professors Dumeril and Schlegel, who 

 make it one-sixth of the whole length of the animal. They state that the Tri- 

 gonoccphalus Blomhoffii is the only venomous serpent found in Japan. 



EANID^. 



Among the reptiles recently sent to the Academj^ by M. Duchaillu, are four 

 fine specimens of Chamseleo dilepis, and a large serpent formerly described by 

 me in the Proceedings of the Acad. N. S., Vol. vi. p. 205, (Dendrophis flavigu- 

 laris.) The only reptiles in the collection of M. Duchaillu that are not new, are 

 four frogs, all belonging to the same species. Two of this family are already 

 known to the collection, viz., Rana Bibrcnii, nob. (abundant,) and Hyla punc- 

 tata, of which we have but one specimen. 



Rana albolabris, nob. 



Char. Head triangular, depressed above ; snout slightly rounded ; eyes pro- 

 minent ; nostrils latero-superior, two lines apart ; openings for the internal nares 

 small and subcircular ; between them two converging lines of vomerine teeth ; 

 eustachian foramina larger than the openings of the internal nares ; tongue ob- 

 cordate, attached in front, free at the sides, notched posteriorly ; back more or 

 less granulated ; a raised and well marked lateral fold on each side, extending 

 from the posterior margin of the eye to the extremity of the coccyx ; tym- 

 panum circular, of moderate size, fingers free ; subarticular tubercles distinct ; 

 base of toe much swollen ; toe and first finger of equal length, third about a 

 line longer than the fourth ; anterior extremities moderately robust ; posterior 

 also webbed, extending to the distal extremity of the antepenultimate phalanx 

 in all the toes except the fourth, in which it extends to the proximal extremity 

 of the same phalanx ; subarticular tubercles of toes less developed than those 

 of fingers. 



Coloration. Dark brown above, with obscure transverse bars of a deeper 

 color upon posterior extremities ; anterior extremities blotched with darker 

 brown ; a white stripe extending from the extremity of the snout, beneath the 

 eye, and tympanum as far as the anterior extremity ; a small white spot above 

 the shoulder, which appears to be constant, and in several of the specimens a 

 row of smaller white spots along the sides irregularly disposed. In two of the 

 specimens the back presents a marked tinge of olive ; the brown upon the side 

 of the head is somewhat deeper than upon the back, resembling in this respect 

 the Rana sylvatica, Le Conte, of which indeed it may be considered the repre- 

 sentative in West Africa. Under parts whitish, more or less mingled with 

 brown ; in some specimens the brown very greatly predominates ; under surface 

 of thighs more or less spotted with brown. 



Dimensions. Length of head 9 lines, greatest breadth 8 lines ; length of head, 

 neck and body 1 inch 10 lines to 2 inches 1 line; length of posterior extremities 

 3 inches 2 lines ; of anterior 1 inch 3 lines ; length of longest toe 9 lines ; of 

 longest finger 5J. 



Habitat. W. Africa. Four specimens presented by M. Duchaillu. 



On several new species of Reptiles in the Collection of the Academy of Natural Sciences. 



By Edw. Hallowell, M. D. 



More detailed descriptions, with drawings of several of the species, will be 

 published in the forthcoming volume of the Transactions of the Philosophic^il 

 Society. 



