Jordan and Evcrmann. — Fishes of North America. 1681 



cies the young show pale cross bands, and of these the one behind the 

 shouhler persists longest. Length a foot or moi-e. West Indies, south to 

 Bahia; not rare southward; not yet recorded from the coast of the United 

 States. {Paru, a Brazilian name, used by Marcgrave.) 



Ohoetodon paru, Bloch, Ichthyol., pi. 197, fig. 1, 1787, Brazil ; on a drawing ; Poey, Synopsis, 

 351, 1868. 



Pomaeanthus areuatits* CtrviEB & Valenciennes, Hist. Nat. Poiss., vii, 211, 18B1; not 

 Chcetodon arcuatus, L.; Lutken, Spolia Atlantica, 61, 1880 ; Jordan & Gilbert, Syn- 

 opsis, 616, 1883 ; EiGENMANN & HORNING, I. c, 9, 1887. 



Pomacanthns jmru, CnviER & Valenciennes, Hist. Nat. Poiss., vii, 205, 1831 ; GOnther, 

 Cat., II, 55, 18G0, in part ; Jordan & Rutter, Proc. Ac. Nat. Sci. PMla. 1897, 124. 



Subgenus POMACANTHODES, Gill. 



2096. POMACANTHUS ZONIPECTUS (Gill). 



(Mojaera de las Piedras.) 



Head 3i to 3| ; depth 1^ in adult to 11 in young ; eye 'il in head. D. XI, 23 ; 

 A. Ill, 20 to 22 ; scales 70. Profile very steep, uneven ; preopercular spine 

 longer than eye, 3|^ in head; preorbital equal to maxillary, l^in head; 

 last dorsal spine \\ in head; longest dorsal ray i longer than head, fal- 

 cate; anal rounded, its soft rays much lower than those of dorsal; caudal 

 short, truncate, 1^ in head ; ijectoral moderate ; ventral very long, J longer 

 than head, the first ray filamentous. Scales irregular, large and small 

 ones intermixed, those of head, breast, and nape minute. Interopercle 

 with one stoutish spine; preopercle very finely serrate. A large hump 

 at nape in adult. Adult, dark gray, blackish posteriorly, most scales with 

 black centers ; edges of scales bright sky blue in life, especially posteriorly ; 

 a triangular bronze-yellow patch in front of line connecting pectorals with 

 ventrals, then a diffuse blackish bar from front of dorsal along region 

 behind pectorals to ventrals, then a broad curved bar of yellow, obscured 

 by blackish centers of scales, behind this a diftuse blackish area; breast 

 vermiculated with blue and yellowish; a blackish bar covering most of 

 head, behind which the oi)ercles and nape are yellowish ; jaws pale bluish ; 

 dorsal orange, vermiculatt^ with sky blue, the edge bright sky blue, below 

 which is orange ; caudal orange, vermiculated with sky blue, the edge 

 orange, the very margin blackish; anal blackish, vermiculated with sky 

 blue; pectorals light orange, marked with grayish blue; ventrals largely 

 blue black, tipped with orange ; spine bluish. Young, pure black on dorsal 

 and anal; top of head with a median line of bright yellow, dividing at 

 the snout and extending along each side of mouth and meeting on throat 

 below; side with 5 very distinct narrow bright-yellow cross l)ars, strongly 

 convex forward; blue lines between these bars. Length 18 inches. AVest 

 coast of tropical America ; rather common about rocks from Mazatlau to 

 Panama; a beautiful fish, showing great changes in color in the course of 

 development, {^(bvrj, zone; pectus, breast.) 



' Most recent writers have called this species Ponuicantfiux arcnatus, but the true arcu- 

 atui, ol Linnieus must bo the preceding species. 



