1990 Bulletin //, Lhiitcd States National Museiun. 



tstill Tuore ornate, in that they possess along the back a number of broad 

 dark bars alternating with lighter bar«, the former confluent below, with 

 tbe ground color of the sides. In the largest specimen, 7 cm. long, the 

 ventral tins extend ouly to base of third anal ray. There are no tuber- 

 cles on the rays, and the membranes extend nearly to tips of the 2 outer 

 rays, and f length of the inner ray. The ventral spine is slender, nearly 

 as long as the inner ray, and is firmly adnate to outer ray. The smaller 

 specimens are, respectively, 4 cm. and 3.5 cm. long, the ventrals reaching 

 in one to front of anal, in the other to vent; fins are finely cross barred, 

 more variegated than iu the type. Known only from Saghalien Island, 1 

 specimen 92 mm. long (Herzeustein), and Iturup Island, where 3 specimens 

 were obtained by the Albatross iu 1896, our description from the latter. 

 (Named for its discoverer. Dr. Zander.) 



Argyrocottus zanderi, Herzenstein, M61anges Biol. Ac. Imp. Sci., xni, 1892, 219, Korsa- 

 kow, Saghalien. (Type, No. 9679, Mua. St. Petersburg. Coll. Dr. Zander.) 



738. POROCOTTUS, Gill. 



Porocottns, GU.L, Proc. Ac. Xat. Sci. Pbila. 1859, 166 (quadrifiUs). 



This genus contains small sculpins, distinguished from Mjioxocephahtshy 

 the presence of 4 spines on the opercle, the uppermost being curved or 

 hooked upward. Lower jaw included; 1 suprascapular spine; lateral 

 line modified, giving off pairs of diverging branches, with pores at their 

 ends. Cirri above eye and on nape. Northern Pacific; the species not 

 well kuown and possibly reducible to 1 or 2. (tTO/joc, pore; xdrzoi, 

 Coitus.) 



a. Dorsal rays VIII, 13 or 14; anal rays 11 or 12. 



h. Opercle with 3 ridges, the upper ending in a sharp spine; pores of lower jaw 

 small; flns low. sellakis, 2367. 



hb. Opercular spines well developed ; tins high; pores well developed. 



QUADEATUS, 2368. 



66/). Opercle undescribed. polaris, 2369. 



hbhb. Opercle without rib or spine. QUAurifilis, 2370. 



aa. Dorsal rays VI, 16; anal rays 14; lower jaw with large pores; opercular spines 



obsolete. tentaculatus, 2371. 



•2367. POROCOTTUS SEliLAElS (Gilbert). 



Head 2* to 3 in length ; depth 3|. D. YIII, 14 (13) ; A. 10 to 12 (usually 

 11) ; P. 16. Pairs of pores in lateral line 32 to 34. Branchiostegals 6. 

 Head cuboid, the anterior profile of snout subvertical, the greatest width 

 a trifle more than the depth at occiput. Cheeks subvertical. Interorbital 

 reo-ion elevated, the supraorbital rim furnished posteriorly with a low 

 tubercle which usually bears an inconspicuous cirrus. The interorbital 

 space is rather wide, transversly concave, its least width 2^ iu eye. 

 Occipital depression well marked, the ridges unbroken, straight, converg- 

 ing rapidly backward, the distance between their tips but f that between 

 their anterior ends. From the latter, 2 low ridges cim verge for a short dis- 

 tance onto the floor of occipital depression. The ridges do not terminate 



