so. i::-.s. JAPANESE SCULPIXS— JORDAN AND STAHKS. 285 



blunt, not nearly' reaching- ats far as long* opercular flap. Suborbital 

 stay scarcely keeled, but produced in a rounded rid(>(>. Top of head 

 comparatively rather sparsely covered with very hard wai'ts. Skin 

 everywhere nak(Ml. with no trace of plates anywhere. No slit ))ehind 

 last j^ill. 



Spinous dorsal when depressed does not reach to tirst ray of soft 

 doisal. Soft dorsal hioh and short. Last rays of dorsal and anal 

 sliij;htly adnate to body, the latter at base only; tips last rays on the 

 same vertical. Pectoral broadh^ rounded, the rays just below the 

 third or fourth fi-om the top the lonoest. reaching- to opposite tips of 

 last dorsal spines when depressed. Ventrals reaching half the distance 

 from their base to front of anal. Caudal truncate, or very slightly 

 rounded when spread, a little concave when partly closed. 



Color v(M-v light, slaty brown on back and upper part of sides; 

 white l)elow; a dark cross band on back under posterior end of spinous 

 dorsal, and one under each end of soft dorsal: a dark bar at base of 

 caudal and one across caudal toward posterior end, leaving a broad 

 white margin at tips of rays; head light, somewhat mottled; no bars 

 from eyes; lips with alternate white and light dusky spots; underpart 

 of head and belly white; spinous dorsal with an irregular large, dusky 

 blotch at each end; soft dorsal with 2 or 3 dusky, irregular, oblique 

 cross bands; upper part of pectoral mottled with white spots on a 

 dusky ground, which changes to light and dark crossbars below; anal 

 white, crossed by 2 dusk}^, oblique bands; ventrals white. 



This species somewhat resembles J/i/oxocej)/ia/i'>< verrucosus and M. 

 jaol\ Init wvdy be known at once by the lack of plates on body and by 

 the ])resence of four preopercular spines. 



The above description from the tj'pe, which was taken at Hakodate 

 by Jordan and Snyder. It is 30 cm. in length. Three cotypes were 

 taken at the same locality. 



The type is num])ered 7709 Ichthyological Collections, Leland Stan- 

 ford Junior l^^niversity Museum. Cotypes are 50921 U.S.N.M. 



(eiisiger, sword Ix'aring.) 



21. POROCOTTUS Gill. 

 Porocoltiii^ Gihi., Proc. Ac. Nat. Sci. Phila., IS.^9, ]>. ItKi {</ii(i(lrifilii<). 



This genus is near Jf//o,ro('rjf/H//u-^, ditl'cring in the presence of 4 

 preopercular s])ines. the uppermost hooked upward. Lower jaw 

 included. Latei-al line modified, giving off pairs of divergcMit l)ranches 

 with ])ores at their ends. Cirri ])resent above eye and on nai)e. 

 Northern Pacific. 



{no/jos, pore; Cottus.) 



