THE FISHES OF ALASKA. 



285 



80. Sebastodes swifti Evermann & Goldsborough, new species. 



Head 2.65 in body; depth 3.1; eye 3.2 in head; snout 4.2; maxillary 2; mandible 1.8; interorbital 

 about 2 in eye, 6 in head; dorsal xiii, 13; anal iii, 7; scales 42 in oblique series, about 32 pores. 



Body oblong-ovate, compressed, the dorsal and ventral contours gently curved, the dorsal sloping 

 rather gently both ways from the nape; caudal peduncle rather slender, its least depth 1.15 in eye; 

 head large, bluntish; interorljital space rather naiTow, somewhat concave, a pronounced ridge inside 

 of each supraocular ridge; nasal, prcocular, supraocular, postocular, tympanic, parietal, nuchal, and 

 coronal spines all present, rather strong; preorbital narrow, with two broad flat lobes on the upper 

 hall': two broad flat humeral spines; opercular spines strong, somewhat diverging; preopercular spines 

 moderately stnmg, the second longest, the fu-st, second, and third projecting backward, but somewhat 

 diverging, the fom-th and fifth short and blunt, projecting downward and backward, all about eqtially 

 spaced; teeth in rather narrow villiform bands on both jaws and palatines, a triangular patch on vomer; 

 the band of teeth on upper jaw broadening to rounded lobes anteriorly, leaving a small, naked interspace 

 at the s>Tnphysis into which the symphyseal knob of the lower jaw fits; the tongue small, short, and 

 broadly rounded; maxillary reaching vertical at posterior edge of pupil, its width at the tip 2 in eye; 

 lower jaw scarcely projecting: tlie mouth somewhat oblique; preraaxillary on a level with lower edge 

 of pupil; gillrakers 8+21, rather long and slender, the longest about 2 in eye. Dorsal long, its origin 



A ^ . 



Fig. .36. — Sebastodes swifti Evermann & Goldsborough, new species. Type. 



a little in front of the rounded opercular flap, the distance from tip of snout to origin of dorsal equaling 

 the length of head: base of dorsal about 1.8 in length of body; dor.sal spines moderately strong, curved, 

 the longest about equaling distance from tip of snout to middle of pupil; dorsal rays somewhat shorter; 

 notch between spinous and soft dorsal not pronounced; second anal spine strong, curved, about equal- 

 ing the third in length; ventrals short, not reaching vent; pectorals long, reaching vertical at vent; 

 scales rather .adherent, flnely ctenoid; top of head, opercles, cheek, and maxillary scaled; mandible 

 naked. 



Color in alcohol, pinkish-brown, with indistinct, dusky, black patch above lateral line; cheek 

 somewhat dusky, a black patch on upper edge of opercle and a smaller one at lower end; axil black; 

 dorsal, anal, caudal, and ventrals tipped with black; inside of mouth pale; under side of opercle 

 posterior to pseudobranchia' with a black patch. 



This species appears to be related to Sebastodes erameri, from which it differs in the narrower and 

 more concave interorbital, the stronger ridges on the head, the stronger cranial spines, the presence 

 of coronal spines, the smaller eye, the longer maxillary, the less strongly arched body, and the fewer 

 pores in the lateral line. 



