110 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL.2 



opercular margin. Isthmus wide, attachment of branchiostegal mem- 

 brane at lower angle of pectoral base. Posterior part of body and caudal 

 peduncle covered with scales, in about 17 oblique rows from a vertical 

 through base of fifth dorsal ray to end of hypural, some nonimbricate 

 scales extending a little more forward, to a vertical through base of 

 second dorsal ray; the anteriormost scales very small, gradually increas- 

 ing in size, the posteriormost scales large; scales cycloid, except a few 

 of the larger scales in the last three or four rows ctenoid; a row of 

 four scales on caudal, at its base; the two outer scales conspicuously 

 large, ovoid, the lateral spinules markedly long, decreasing gradually 

 in length toward a median line, the spinules on outer side somewhat 

 larger than those on inner side ; the two inner scales in the row much 

 smaller and cycloid. (In the single specimen examined only one smaller, 

 cycloid scale is present next to the lower, large scale, on both sides. 

 However, a bare space is present to fit exactly another such small scale, 

 and the upper of the two scales evidently has fallen ofi.) First dorsal 

 with 7 flexible spines, none especially prolonged. Second dorsal and anal 

 with 10 rays; posterior anal rays just reaching a vertical through end 

 of hypural, those of dorsal falling slightly short. Pectoral with 18 rays; 

 its tip falling on a vertical a little in front of origin of second dorsal. 

 Ventrals completely separated, the tip falling a little short of anus. 

 Caudal of moderate length, pointed. 



Cross-banded color pattern sharply marked ; ground color light straw 

 yellow; body crossed for its entire width by seven dark bands from 

 origin of first dorsal to near base of caudal ; color of bands generally 

 a little more intense at lateral margins ; the bands only a little narrower 

 than the interspaces, except last band markedly narrower than others; 

 a more diffuse band directly behind base of pectoral, nearly interrupted 

 at middle of body; two similar bands on dorsal aspects of nape, con- 

 tinued and becoming narrower on side of head, the posterior one on 

 posterior part of opercle, rather diffuse, the anterior one on anterior 

 part of opercle, narrower, more intensely pigmented, curving forward 

 and becoming broader on under side of head over branchiostegal mem- 

 brane; two transverse, parallel, approximated, rather narrow, very dark 

 bands on interorbital space, interrupted by eye and continued below eye, 

 the posterior one making a broad curve on cheek, convex posteriorly, 

 the anterior one nearly vertical, under anterior margin on pupil, each 

 extending to ventral aspect of head to nearly meet its fellow from oppo- 

 site side, both becoming broad and more diffuse on ventral aspect of 



