N0.1296. JAPANESE CHyETODONTID.E— JORDAN AND FOWLER. 545 



o. AcanthocHvEtodon; scales very small; gill-membranes narrowly joined to the 

 isthmus; caudal rounded; body deep. 

 h. Body golden brown, witli numerous Vjlue or blackish stripes. 



c. Stripes on body relatively narrow, bright blue with darker edges, these 



extending horizontally on the soft dorsal fin septentrionalw, 16. 



cc. Stripes on body broader, blackish, these extending on the soft dorsal fin 



in the direction of the rays ronin, 17. 



na. Centropy'ge; scales large; isthmus narrow; body oblong; caudal rounded. 

 d. Body blackish with an ovate white spot or crossband; scales rather large, 

 rough tibicen, 18. 



i6. HOLACANTHUS SEPTENTRIONALIS Schlegel. 



KINJAKUUO (PURSE FISH). 



Holocanthus septentrionalis Schlegel, Fauna Japonica, Poiss., 1847, p. 82, pi. xliv; 

 Nagasaki. — Gunther, Cat. Fish., II, 1860, p. 52. — Steindachner and Doder- 

 LEix, Fische Japans, II, 1883, p. 24; Tokyo.— Ishikawa, Prel. Cat., 1897, 

 p. 52; Tokyo. 



HeadSf; depth If; D. I-Xlll, 18; A. Ill, 11); P. I, 17; V. I, 5. 

 Body deep, strongly compressed, and covered almost everywhere with 

 small rough scales. Head deep, the profile steep above; snout not 

 produced, and blunt; eye small, high, If in the snout, 3f in the head, 

 and If in the interorbital space; profile of body from snout to ventrals 

 evenh^ convex; mouth rather small, the maxillary nearly vertical and 

 not extending to the posterior nostril; nostrils small, close together, 

 and in front of the eye; lower jaw projecting a little; teeth slender, 

 numerous, and in brush- like series in either jaw; interorbital space 

 strongh" convex; preopercle with finely denticulate edge, and armed 

 with a strong, compressed spine, directed ])ackward. Gill-opening 

 large, the isthnms thick, and the membrane narrowly joined to it; gill 

 rakers short and in moderate number. Dorsal and anal almost entirel}" 

 covered witli small rough scales, the spinous portions of the fins very 

 rough; spinous dorsal highest posteriorly, gradually sloping up from 

 the front; soft dorsal high in the front and with its margin rounded; 

 anal graduated to the third spine, which is the longest, and the edge of 

 the soft fin rounded behind; pectorals short, rounded, shorter than the 

 ventrals and If in the head; ventrals with a strong roughened spine, 

 not reaching the anus, and the tip of the longest ra}^ not reaching the 

 origin of the anal. Lateral line arched above so that it is concurrent 

 with the margin of the dorsal and running on the caudal peduncle. 

 Caudal peduncle compressed, and a little over 2 in the head. 



Color in alcohol dark brown, the caudal white, very narrowly mar- 

 gined with brown; soft dorsal and anal a little darker than the bod}- 

 color, their margins very narrowly white, and then with very narrow 

 blackish marginal stripes; on the sides are 7 or 8 narrow longitudinal 

 bluish stripes margined with l)lack, and on the dorsal and anal ar(^ 

 several similar irregular narrow longitudinal stripes running the length 



Proc. N. M. vol. XXV — 02 35 



