60 Macrostoma, 
Head 4, height of body 6 in total length without caudal. Eye 41, interorbital 
Ze, snont 5, maxillary 12 in’ head. .B..8; D, II,.20;,A. Ul, 175 Ps te: VeseG. 
(without rudimentary rays) 17 ; scales 4—-44—4. 
Body elongate, subcylindrical, a little compressed ; caudal peduncle high, com- 
pressed. Head moderately long; eye large, lateral, close to upper profile of head ; 
interorbital broad, convex ; snout short, slightly longer than half diameter of eye, the 
upper profile rather acutely curved ; anterior and posterior nostrils very close to each 
other, situated about midway between tip of snout and anterior rim of eye. Mouth 
large, directed slightly upward ; lower jaw a little included ; teeth very slender, rather 
closely set in both jaws ; none on vomer and palatines ; maxillary extending to near 
preopercular angle ; no barbels. No spine on preopercular and opercular parts ; gill- 
openings wide, the membranes procurrent below, slightly confluent with each other, free 
from the isthmus.  Giils four in number ; gill-rakers on first gill-arch 9+ 13, the rakers 
elongate, the length about one-fifth that of head ; pseudobranche developed. Dorsal 
inserted a little nearer to tip of snout than to insertion of adipose fin, the insertion 
being over the eleventh scale of the lateral line and above the origin of ventral ; base 
of dorsal fin longer than length of head, and its longest ray 14 in head; adipose fin very 

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