PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 463 



Suprascapula with five or six stroug teeth. Opercular flap reachiDg 

 about to front of spinous dorsal. Gillrakers long, about two-thirds 

 diameter of orbit. 



Dorsal spines high and rather strong, but distinctly slenderer and 

 more flexible than in C. armatns, their tips when depressed reaching 

 considerably farther back than the tips of the pectorals orventrals; 

 third spine longest, a little less than half length of head; fourth sjiine 

 but little shorter than third. Insertion of first dorsal spine a trifle nearer 

 hist ray of second dorsal than tip of snout. Second anal s])ine very long 

 (slender and perfectly straight in two specimens, strong and curved in 

 the others,) its tip about reaching base of caudal. It is much longer 

 than third dorsal spine or than third anal spine, and is about 1^ in 

 length of head. Third anal spine about equal to first soft ray. Caudal 

 fin well forked. Ventral fins long, reaching in most cases scarcely to 

 the vent. Pectorals about equalling ventrals, If in length of head, not 

 reaching tips of ventrals. Vent about midway between base of ventrals 

 and middle of base of aual. 



Scales large, those in front of dorsal not crowded, 10 to 14 in number 

 (10 to IS in C. armatus) ; 5 series between lateral line and front of spinous 

 dorsal. 



Head (with opercular flap) 2f in length; depth 3^ (3^ in C. armatus). 



D. VIII-I, IO5 A. Ill, 6; scales, 5-51-9. 



Color olivaceous, white below; lateral line pale. Membrane of an- 

 terior dorsal spines and of second and third anal spines blackish, as 

 in C. armutns ; pectorals and soft parts of vertical fins somewhat dusky; 

 ventrals plain yellowish. 



This species is rather common at Mazatlan, where numerous speci- 

 mens were obtained. It reaches a length of about a foot, and is known 

 to the fishermen us " Constantino^^ or " Rohalito ", the larger species of the 

 genus, C. imdecimaUs and C. nir/rescens, being called ^^Bohalo^\ 



Two specimens, 29228 from Mazatlan, and 28245 taken by Lieutenant 

 Nichols at Acapulco, differ from the others in the following respects: 

 ♦The anal snine is shorter, slenderer, and perfectly straight, and the ven- 

 ♦^ral fins are longer, reaching well i)ast the vent, as in C. armatus. 



^T«T)TAN> Uneversity, December 2, 1881. 



■/*OTES ON A C;Ol..tiECTIO>' OF FI.SIBES 1?IA1>E B5Y CAPTAIIV IIEIVRV 

 E. IVICHOL-S, IT. S. N., BIV RRITEMII COIilTMBIA AIV» SOIJTHERIV 

 AL.ASKA, WITH BESHRII'TBOIVS OF IVEW SPECIE.*! AND A IVEW 

 GEIVUS (Delolepis). 



By TAKI.ETOIV II. BEA^. 



In the summer of 1881 Captain Nichols made a voyage in counnaud of 

 the United States Coast and Geodetic Survey steamer Hassler, through 

 the inland waters of British Columbia and Southern Alaska, during 

 which he preserved for the United States National Museum 31 species 



