364 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. XXIII. 



lower 2 project downward and liackward; a subopercular and an inter- 

 opercular spine closely approximated; 2 large, flat, acute spines on 

 upper part of opercle; 2 small, humeral spines. Head completely 

 scaled; lower jaw, maxillary, and preorbital area with \gtj small 

 scales; dorsal, anal, caudal, and ventral fins with small scales extend- 

 ing almost to tips of spines and rays; pectorals less extensively scaled; 

 all the scales except those on tins and branchiostegals ctenoid. First 

 dorsal spine shortest; equal in length to width of interorbital space; 

 second equal in length to ninth and tenth; third to sixth twice as long 

 as first; interspinal membranes deeph" incised. Longest dorsal ra3"S 

 as long as third spine. First anal spine a little less than half as long- 

 as second, somewhat more than half as long as third; second spine 

 strong. Edge of caudal concave; 8 lowermost rays of pectoral simple; 

 uppermost simple ray, in middle of tin, longest, extending to a vertical 

 through insertion of anal. Ventrals extending to vent. Color, in alco- 

 hol, light, with brownish, cloud-like })lotches of irregular shape, a blotch 

 equal in width to half the diameter of orbit extending from insertion 

 of dorsal downward to lower edge of interopercle, the brownish color 

 darker on upper part of opercle; a patch of dark color on upper median 

 part of body, spreading over posterior two-thirds of spinous dorsal, 

 extending posteriorly below base of soft dorsal, and reaching upward 

 on anterior part of the latter fin; a dark band on posterior dorsal part 

 of caudal peduncle. 



A larger specimen (cotype No. 6271, Leland Stanford Junior Uni- 

 versity collection) differs in no particular from the one described. 



Measurements of Sebastodes scythropus. 



Length of body in millimeters . . . 



Length of head in body 



Depth of body 



Distance from snout to dorsal 



Distance from snout to anal 



Depth of caudal peduncle 



Length of caudal peduncle 



Length of snout 



Length of maxillary 



Diameter of eye 



Width of interorbital space 



Length vi ba.se of spinous dorsal . 



Length of base of soft dorsal 



Length of first dorsal sjiine 



Length of -fourth dc irsal si)ine 



Length of thirteenth dorsal spine 



Length of third dorsal ray 



Length of base of anal 



Length of first anal spine 



Length of second anal .spine 



Length of third anal spine 



Length of .second anal ray 



Length of longest pectoral ray . . . 



Length of longest ventral ray 



Length of caudal 



Number of dorsal rays 



Number of anal rays 



Number of pectoral rays 



Number of pores in lateral iiue. . . 



