BY J. DOUGLAS OGILBY. 49 



about half tne length of the lower. Lateral line consisting 

 of 2 short tubes. 



Dorsal fin originating sHghtly in advance of the gill- 

 opening, the rays gradually increasing in length to the 

 middle of the soft portion, the longest articulated ray 

 1*25 time the height of the last spinous ray ; membrane 

 of last ray reaching to the base of the caudal fin. Anal 

 originating below the 11th dorsal spine. Caudal fin rounded, 

 the 3rd to 5th and 9th to 11th rays in the male terminating 

 in a filament. Pectoral fin rounded, the 8th and 9th rays 

 longest, not reaching to the vertical from the vent. 

 Ventral fin long, the inner ray as long as the pectoral. 



Gill- opening directed forward from above the base 

 of the pectoral, its width 5 in the head. Vertebrae 1 1 -f- 

 31 =42. 



Yellow closely powdered with dusky dots ; a broad 

 dark blue band from the eye to the gill-opening, continued 

 along the middle of the body as a much paler and rather 

 ill defined band, which becomes forked below the middle 

 of the soft dorsal, the lower branch being usually broken 

 up into a series of spots, and both being continued well 

 on to the caudal fin ; behind the pectoral fin the lateral 

 band throws off 6 or 7 conspicuously darker offshoots, 

 Avhich are directed downward and slightly backward ; 

 a row of blue spots along the base of the dorsal fin ; 

 abdominal region sometimes crossed by a few narrow 

 dark lines. Head pale olivaceous brown, the cheeks with 

 2 or 3 darker vertical bars ; lower portion of the opercular, 

 the branchiostegal, and the jugular regions closely spotted 

 with blue. Teeth tipped with tawny yellow. Dorsal fin 

 violet, the spinous portion the darker and with two series 

 of pale spots, the soft portion with several narrow dark 

 lines commencing at the base and running obliquely back- 

 ward ; free tips of soft dorsal and anal rays white ; an 

 oblong blackish inframarginal spot on the 4 middle rays 

 of the soft dorsal in the adult ; anal lilac ; pectoral and 

 ventral pale yellow, the former with a few small round si)ots 

 on or near the base. 



Female.* — Differs in having the lateral band more 



* The female bears a remarkable resemblance to the Japanese 

 Petroskirtes elegans as figured by Jordan and Snyder (Proc. U.S. Nat. Mus., 

 XTv, 1903, p. 454, fig. 6). 



D— KoYAL Society. 



