FAMILY, X— MURiENID^. 675 



Length of head 4 to 4| in the distance between the end of the snout and the vent : tail rather longer 

 than the trunk. Byes — small, about 1^ or If diameters from end of snout, to which it is nearer than to the angle 

 of the mouth. Extent of cleft of mouth equal from 2| to 2| in the length of the head. The giU-opening wider 

 than the eye. Anterior nasal tubes short, the posterior nostrils with a raised edge in adults. Teeth — pointed, 

 in a band in either jaw, the inner row the larger : no large canines : in a single row in vomer, the anterior two 

 of which are rather enlarged and acicular. Fins — the vertical fins only exist round the end of the taU, the fin 

 rays being rudimentary. Golov/rs — of a brownish gray marbled all over with arborescent dark lines. The 

 variety G. xanthc/pterus has the fins yellow. 



Eabitat. — Andamans to the Malay Archipelago. The example figured is 103 inches in length. 



4 K 2 



