458 THE FUR SEALS OF THE PRUaLOF ISLANDS. 



Characterized by its comparatively plain coloration, the pale parts being largely 

 bright yellow in life ; by the wider and shallower interorbital space, the smoother side of 

 the head, and the longer dorsal and anal. All specimens examined have dorsal XI, 21, 

 anal 17. At anterior and jiosterior ends of occipital ridges are centers around which 

 radiate very coarse broken striic, contrasting with the finer granulation of H. hcmi- 

 lepMotiis, which are also disposed in radiating lines. The males differ from females i;i 

 the great development of all the tins, the higher flaps on head, and the presence of more 

 yellow on jaws and branchiostegal region. The ventrals are dusky in the males, yel- 

 low or speckled in the females. The general color of body and ai)per fins is dull olive, 

 mottled with bluish, the sides of belly often obscurely speckled, the upper parts 

 translucent white in spirits, but largely bright yellow in life. 



88. Enophrys claviger (Cnvicr aud Valeiicienni^s). (Plato LV.) 



One specimen, 51 mm. long, from Station 3045, off" llobben Island; depth, 10 

 fathoms. The specimen is entirely similar to the one reported from Bristol Bay by 

 Gilbert, Report Commissioner of Fish and Fisheries, 1S90, 420. The latter is also 52 

 mm. long — not 25, as stated in the text. 



Preorbital with two strong, spinous projections, which overlap the premaxillary in 

 closed month. Interorbital space deei)ly channeled, the orbital rim raised posteriorly 

 into a blunt spinous tubercle. A small, spinous, occipital tubercle, behind which 

 rises a high, sharp nuchal ridge, wMiich is highest posteriorly and has its u])per edge 

 finely toothed. No cirri on to]> of head. Upper preopercnlar spine long, simple, 

 reaching beyond head to fourth or fittli plate of lateral line. Below it are three short, 

 strong spines, the lowermost directed downward and forward. The outer surface 

 of the upi)er spine contains three or four low, finely serrated ridges. Its inner edge 

 is smooth, without acccs.sory cusps or spinules. Opercular ridge high, serrate. Two 

 sharp spines on anterior angle of subopercle. Top and sides of head rough, with 

 minute si)inous imints. Preoperde and lower jaw with numerous short filaments; a 

 longer one on end of maxillary. 



Body entirely covered with minute prickles, which invest also the abdominal 

 region. Those above lateral line are longest and most thickly placied. Lateral line 

 with a series of plates similar to those in l^J. hison, each surmounted by a sharp spine. 

 Lateral line with two curves approaching back most nearly at end of sjjinous and at 

 end of soft dorsal. Many conspicuous white filaments scattered over sides below 

 lateral line. Dorsals entirely separate, the free interspace as wide as i)upil. 



Head, 2= in length; de])th, 3^. Eye largei- than interorbital width, 4,' in head. 

 1)., VIII-14; A., 12(11 in previously noted specimen); P., 10; Lateral hue with 35 

 plates. 



Dusky above, with faint darker crossbars; light below. Two black blotches on 

 cheeks. Some faint dusky V-shaped prolongations of the coloration of the back down 

 toward base of anal fin. Fins indistinctly cross-banded. A dark area at base of 

 pectoral, a narrow oblique dusky crossbar on base of caudal fin. 



89. Ceratocottus diceraus (Pallas). (Plato LVI.) 



One specimen from Hobben Island, collected by Mr. Barrett-Hamilton, and three 

 young specimens from Petropaulski, Recorded by Dr. Gilbert from IJereudeen Bay, 

 and taken by Colonel Grebuitzki on Bering Island and at Petropaulski. 



The depth of the occipital depression, the height of the different ridges and 

 spines, and the amount of the irregularity in the cusps of the preopercular spine is 



