130 bulletin: museum of comparative zoology. 



Rana longirostris Peters. 



A series of ten typical examples. Schwab collection, and one with 

 shorter snout from the same locality in the Barbour collection. 



Rana mascareniensis Dumeril & Bibron. 

 One in the Schwab collection. 



Rana albolabris Hallowell. 

 One in the Schwab collection. 



Rana zenkeri Nieden. 

 Plate 1. 



Nineteen half grown and adult specimens from the Schwab collec- 

 tion show some interesting variations from Nieden's description. 

 In the largest examples the snout is considerably longer than the 

 diameter of the orbit, and the first and second fingers may be of the 

 same size, or either one a little longer than the other. In all other 

 respects these agree perfectly with the original description. Three 

 of the examples measure from 240 to 260 mm. from nose to tip of 

 outstretched fourth toe. Nieden's length measure taken in the same 

 way was 160 mm. 



Scotobleps gabonicus Boulenger. 



A single example from Akok, Cameroons, in the Barbour collec- 

 tion, has the dorsal surface of the body quite smooth, in sharp contra- 

 distinction to the condition shown in Boulenger's figure of the type 

 (P. Z. S. Lond., 1900, pi. 18, fig. 1). 



Gampsosteonyx batesii Boulenger. 



An example in the Barbour collection from Efulen, Kribi, Cameroons 

 as well as one in the Schwab collection from the same locality. I had 



