296 



On a new Ed from Tohaejo. 



XXXVIII. — A neio Eel from Tobago. 

 By J. R. Norman. 



(Published by permission of the Trustees of the British Museum.) 



ACANTIIENCHELYS, gen. nov. 



Closely related to 0/)hichthi/.<>, but distinguished by tlie 

 structure of the anal fin, which is very similar to the dorsal 

 fin o( Zoarces, having a sei'ies of short spines not far from 

 tlie end of the tail. 



Tail of Acanthenchelys spinicaiida. 



Acanthenchelys spin'icauda^ sp. n. 



Depth of body at origin of dorsal 2f in length of head, 

 which is about 3 in distance from gill-opening to vent; 

 length of tail about equal to that of head and trunk. Snout 

 broad and obtusely rounded, If times diameter of eye, which 

 is nearly twice in interorbital width. Jaws equal anteriorly; 

 cleft of mouth 2| times length of snout, extending well 

 beyond posterior border of eye. Teeth pointed, in a double 

 series in each jaw ; vomerine teeth in a single series, at least 

 posteriorly. Origin of dorsal just behind end of pectoral, 

 which is nearly ^ length of head. Anal fin with about 20 

 spines. Brownish, lighter below ; about fourteen darker 

 bands across the back, narrower than the interspaces, not 

 continued below lateral line ; fins yellow. 



A single specimen, 1100 mm. in total length, from Tobago, 

 collected and presented to the British Museum by Mr. P. 

 Lechmere Guppy. 



OphicJdhys ocellatus, Lesueur, is also referable to this 



