1912.] NATURAL SCIENCES OF PHILADELPHIA. 33 



terior nostril?. Posterior nostril simple pore close before eye on side 

 of snout. Interorbital slightly convex. 



Gill-opening small, lateral, about size of eye in length? (damaged). 



Skin smooth. 



Dorsal and anal developed as low cutaneous folds, former beginning 

 about opposite vent and latter close after. Both obsolete behind 

 and in height scarcely equal to half of body-depth at that point. 

 End of tail simple point, without any trace of caudal fin. Vent 

 little before last eight in total length. 



Color faded dull or uniform pale brownish. Eyes slaty. 



Length about 5f inches. 



Type No. 1,086, A. N. S. P. Ganges River, India. Dr. M. 

 Burrough. 



This species differs from the only other Indian species of the 

 genus, A. macrocephalus, in having the vent much more posterior. 



(Named for the River Ganges, somewhere in the estuary of which 

 the species was likely secured.) 



