Mr. G. A. Boulcnger on American Batrachians. 457 



Siphonops hrasiliensis. 



Siphonopx hrni^ilienm, Liitk. Vid. ]\Icddel. 1851, p. 54 (1852) ; Eeinh. 

 ct Liitk. Vid. Meddel. 18G1, p. 202. 



I find on examination of the type specimen, kindly entrusted 

 to me by Prof. Liitken, that Siphonops brasiliensis belongs 

 to that genus in the restricted sense, not to Dermophis, as 

 suggested by Peters. The shape of the tentacle is exactly as 

 in Siphonops aniiulatus, and so is its position with respect to 

 the eye, which is very indistinct ; the dentition does not 

 differ, so far as I can judge from the condition of the si)eci- 

 men. The more prominent snout and the much more elon-. 

 gate body easily distinguish S. hrasiliensis from >S'. ayinulatas^ 

 and the position of the tentacle separates it from S. Uardyi, 

 as may be seen from the following synopsis: — 



Tentacle iu front of and below the eye, which 

 is perfectly distinct ; diameter of body about 25 

 times iu the total length ; 85 to 95 circular folds, 

 all complete 1. S. annulatus, Mik. 



Tentacle in front of and below the eye, wliich 

 is very indistinct ; diameter of body 46 times 

 in the total length ; 138 circular folds, mostly 

 interrupted on the back and belly 2. S. brasiliensh, Liitk, 



Tentacle in front of and close to the eye, aud 

 very slightly below ; eye more or less distinct ; 

 diameter of body 36 or 37 times in the total 

 leugth ; 100-104 circular folds, all complete. ... 3. S. Havdyt, Blgr.* 



Typliloncctes Kaupii. 



Siphonops Kaupii, Berthold, GiJtting. Nachr. 1859, p. 181, and 1867, 



p. 361. 

 Ca'vilia dormlis, Peters, Mon. Berl. Ac. 1877, p. 459, pi. — . 

 Ti/phlonectes dorsalis, Peters, Mon. Berl, Ac. 1879, p. 941. 



The earlier name S. Kaupii, which evidently applies to the 

 same species as that named G. dorsalis by Peters, has hitherto 

 been overlooked. 



* The British Museum has recently received two u)ore specimens of 

 this species, from M. Hardy du Ureneuf. 



