Paraceratiace aa 
Body oblong, compressed ; caudal peduncle also compressed ; body highest at 
base of pectoral, more strongly tapering posteriorly than anteriorly. Head large ; eye 
very small, nearer to tip of snout than to gill-opening. Nostril one on each side of 
head, near tip of snout, tubular. Mouth subvertical, not very large; lower jaw 
included, symphysis provided with a prominently protruding spinous tip ; mandibular 
teeth anteriorly in two ill-defined series, posteriorly in one row; those of the inner 
series long and fang-like ; all depressible. Premaxillary teeth smaller, in two or three 
series, the largest teeth located anteriorly ; vomer with some fang-like teeth on the side 
of its head, the tip having no teeth ; palatines almost without teeth. Tongue toothless. 
Gill-opening rather narrow, just below pectoral, partly extending around the base of the 
fin, running downward and forward. Gills 23; gill-arches nearly smooth; no pseudobran- 
chia. Pectoral small, inserted nearer back than belly ; no ventral. Distance from base 
of caudal to vent 23 times in the length from vent to tip of snout. Cephalic tentacle 
representing the first dorsal spine horny, flexible, above eye, not reaching to dorsal 
tentacle, with a pear-shaped bulb and a terminal tuft. Second dorsal spine represented 
by dorsal tentacle a little shorter than the length of maxillary ; the distance between 
the tentacle and the median dorsal caruncle one-fourth the distance between the latter 

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