1920.] O. A. BouLENGKR : Frogs of the Genus Rana. 23 



marbled with blackish but a specimen from Pegu is without any 

 spots, and others from Siam and vShanghai have the markings 

 reduced to a streak in the middle of the throat. 



This form is hardly to be distinguished from the African var. 

 occipitalis, Othr.. the range of which extends from the Egyptian 

 vSoudan and Uganda to the Senegal and other parts of West Africa 

 as far south as Angola. I am not sure I could always tell a Bur- 

 mese or Siamese frog from an African, and the tadpoles are identi- 

 cal. 



Habitat. Burma, vSiam, French Indo-China, China, and For- 

 mosa, Annandale also records this frog from Koh Samuie Id.. N.E. 

 coast of Malay Peninsula, and reports having received a single 

 specimen from Madras town, among several of the var. crassa. 



The name pantlierina, Fitz. , based on specimens from Hong 

 Kong, is the earliest that can be assigned to this variety. The 

 type of R. burkilli, Annand. is from Tavoy, Tenasserim. 



5. Rana cancrivora. 



Rana caiicrizwra, Gravenh., Delic. Miis. Zool. Vratisl. I, p. 41 (1829) ; 



Tschudi, Class. Bafr., p. 39 (1838); Annand., A/em. As. Soc. Beng., 



VI, 1917, p- 128, pi. V, fig. 4; Malcolm Smith, Journ. N.H. Soc. 



Siam, II. 1917, p. 264; Bouleng., Rec. Ind. Mits. XV, 1918, pp. 55, 



65 ; Annand., Rec. hid. Mus. XV, 1918, p. 63 fig. 

 Ranavittigera, Wiegm., A^. Act. Ac. Leop. Carol. XVII, 1835, p. 255, 



pi. xxi, fig. I. 

 Rana rugnlosa, Wiegm., t.c. p. 258, pi. xxi, fig. 2. 

 Rana tigrina, part., Dum. et Bibr., Er-p. Gen. VIII, p. 3751 (1841) ; 



Gunth., Cat. Batr. Sal. p. 9 (1858); Peters, Mon. Berl. Ac. 1863, p. 



77; Giinth., Rept. Brit. Ind., p 407(1864): Steind., Novara, Amph. 



p. 17 (1867) ; Bduleng.-, Cat. Batr. Ecaiid. p. 26 (1882) ; van Kampen, 



Nat. Tijdslir. Nederl. Ind. LXIX, 1909, p. 33 : Bouleng., Faun. Mai. 



Pen., Rept. p. 234 (1912). 

 ? Rana gracilis, var. piilla, Stoliczka, Journ. As. Soc. Beng. (2) XXXIX, 



1870, p 142. 

 Ra7ia schliiteri, Werner, Zool. Anz. 1893, p. 84, Verli. zool-bot. Ges. 



IVien, XLIII, 1893. p. 357, and Zool. Anz. 1897, p. 266; Stejneg., 



Her p. Japan, p. 142 (1907). 

 Rana tigrina, var. augustopalmata, van Kampen, in M. Web., Zool. Ergebn. 



IV, p. 388, pi. xvi, fig. 3 (1907;. 

 Rana tigrina, var. schlueteri, Barbour, Mem. Mtis. Camp. Zool. XLIV, 



1912, p. 64. 

 Rana tigrina, var. cancrivora, Bouleng., Rec. Ind. Mus. XV , 1918, p. 58. 



This frog has usually been confounded with R. tigrina, and I 

 should have regarded it as a variety but for the fact, which is 

 now well established, that the tadpole is very different and very 

 similar to that of R. limnocharis, as first pointed out by van Kam- 

 pen. 



The vomerine teeth, which vary very considerably, often 

 differ from those of R. tigrina is being disposed in rather short 

 oblique series, well separated from the anterior borders of the 

 choanae ; but some specimens ' have longer and stronger series, 

 which mav touch the inner anterior borders of the choanae. 



1 From Borneo, Java and Celebes. 



