Jordan and Evermann . Fishes of North A merica . 1683 



form called Holacanlhus striyatm, above described, is doubtless tlieyonng 

 of Holacanthus passer. The latter is figured as without bluish markings 

 on head or body, the dorsal and anal edged with yellow or brown, and its 

 caudal plain yellow, (passer, a sparrow; the word also applied to certain 

 flounders.) 



Ifolacan thus passer, VALENCIENNES, Voyage Venus, 327, pi. 6, 1846, Galapagos Archipelago ; 



Gi'NTHER, Cat., ii, 46, 1860. 



Holacanthim ,stri;/atins, ( 1 ILL, IVoc. Ac. Nat. Sci. Phila. 1862, 243, Cape San Lucas. 

 Pomacanthus passer, EIOENMANN <fc HORNING, I. c., 14, 1887. 



HOUS. HOLACANTHUS CLARIONKXSI8, Gilbert. 



Head 4; depth 1$; eye 4 in head. D. XIV, 18; A. Ill, 18; scales 60 to 

 65, about 36 with pores. Eye small, little more than | snout, 1| in inter- 

 orbital width. Anterior profile very slightly concave above orbits, the 

 snout not protruding; maxillary 4 in head; preopercular spine gently 

 curved, its outer face channeled, the spine fitting into a groove in front 

 of base of pectoral, 2| in head, not reaching vertical from margin of oper- 

 ele; vertical limb of preoperele with 20 to 25 short, strong spines, hori- 

 zontal limb with 2 spines pointing backward; the anterior portion of 

 margin of interoperele with 2 strong spines, from 1 to 3 smaller spines 

 behind these; preorbitul with a strong, compressed, blunt spine directed 

 forward, and 2 sharp ones below it; posterior margin of subopercle Avith 

 a series of short spines; no opereular spines; membrane of first dorsal 

 spine free from scales, of second and third, partly scaly; other spines 

 with membranes wholly scaled; length of fourteenth spine 2f- in head; 

 soft dorsal and anal not produced, the angles rounded, the posterior mar- 

 gins inclined but slightly forward, and about on vertical of base of cau- 

 dal ; longest rays of dorsal and anal equal, 1 in head ; caudal truncate 

 when widely spread, the angles not rounded, the outer rays not at all 

 produced, about equaling length of head ; pectorals and ventrals about 

 equal, equaling length of head ; the ventrals with outer rays slightly pro- 

 duced, reaching to or slightly beyond vent. Scales large, everywhere 

 covered with small basal accessory scales, all rough ctenoid; lateral line, 

 much arched, concurrent with the back, incomplete, ending under middle 

 of soft dorsal, with only 35 pores. Head and body very dark olive brown, 

 a wide orange red bar behind head, including nape and back as far as 

 sixth dorsal spine, becoming narrow on middle of sides, and expanding 

 again below to include region from gill openings nearly to vent, being 

 here, however, darker and less distinctly defined; the yellowish color 

 continues backward as a submarginal band on dorsal and anal, the margin 

 being deep blue, broader posteriorly; caudal bright orange red, with very 

 narrow blue margin; pectorals yellowish; ventrals yellowish olive; verti- 

 cal fins otherwise with color of sides. Length about 7 inches. This 

 brilliant species is extremely abundant at Clarion, Socorro, and San Bene- 

 dicto islands of the Revillagigedo group. 



Holacanthus clarionenais, GILBERT, Proc. TJ. S. Nat. Mus. 1890, 72, Revillagigedo Islands: 

 Clarion, Socorro, and San Benedicto. (Coll. Albatross.) 



