Occasional Papers of the Museum of Zoology 31 



continuous, ascends to middle of caudal base and descends 

 to lowest 2/5 of greatest depth. Tubes simple, extend over 

 first half to 34 of exposure of scale at least. Pectoral axil 

 with deep pit. Head above, muzzle, including preorbital and 

 sides of mandible, furnished with numerous small tubercles, 

 though those on muzzle largest and most pronounced. 



Dorsal origin about midway between snout tip and caudal 

 base, first branched ray longest with others graduated down, 

 and depressed fin reaches 2/3 to caudal base. Anal origin 

 well behind that of last dorsal ray, first branched ray longest 

 with others graduated down, edge of fin nearly straight and 

 depressed fin reaches i 3/4 to caudal base. Caudal well fork- 

 ed, lobes pointed, about equal. Pectoral broad, expanded, 

 reaches 5/6 to ventral origin, uppermost rays a little longer. 

 Ventral inserted a little before dorsal origin, broadly expand- 

 ed, edge rounded and fin reaches 7/8 to anal. Vent close be- 

 fore anal. 



Color in alcohol faded dull dusky brown generally, sides 

 and lower part paler, scales on sides with dusky pockets show- 

 ing at their bases. Dorsal and caudal with dusky rays, bases 

 of fins paler. Opercles and flanks with brassy brown tinges. 

 Other fins pale brownish basally, and largely dusky on outer 

 portions with narrow pale milky colored edges. Iris brassy 

 gray. A dark median stripe down back. 



Length 153 mm. 



No. 3,950, A. N. S. P., cotype (type) of Hypsilepis corn- 

 utus cvaiicits Cope. ^Montreal Run, Keeweenaw Point on Lake 

 Superior. Dr. J. H. Slack. Also Nos. 3,951 to 3,959, cotypes, 

 same data. 



Cope gives the scales before the dorsal as 31 to 40 and as 

 10/4 transversely; eye 4 1/2 (evidently above example) in 

 head. 



