Jordan and Evermann. Fishes of North America. 1679 



dark vertical band extending on the first 7 spines ; soft dorsal dark, with 

 sharply denned pale edge ; part of anal covered by scales dusky, with a 

 narrow darker margin; unsealed portion yellowish white; caudal and pec- 

 torals pale; ventrals dusky, edged with yellow. Length If inches. 

 Woods Hole, Massachusetts ; only the type and 2 other specimens known, 

 all collected by Dr. H. M. Smith in the summer of 1897 ; evidently the 

 young of some tropical species brought north in the Gulf Stream. (Named 

 for Capt. John J. Brice, U. S. Commissioner of Fish and Fisheries.) 

 Chcetodon bricei, H. M. SMITH, ;Bull. U. S. Fish Comni. 1897, pp. 102-103, with plate, Woods 

 Hole. (Typo No. 48526.) 



660. POMACANTHUS, Lacoprde. 



(ClIIKIVITAS.) 



Pomacanthus, LACKP&DE, Hist. Nat. Poiss., iv, 517, 1803 (arcuatus, as restricted by Cuvier). 

 Pomacanthodes, GILL, Proc. Ac. Xat. Sci. Phila. 1862, 244 (zonipectus) . 



Chcetodon, BLEEKHK, Arrh. Xedrrl. Sci. Nat., xn, 5, 1876 (transferred to species of Poma- 

 canthus, as the first species of Chcetodon mentioned by Artedi belongs to the latter 

 group, and the first .species mentioned by Lacepede under Pomacanthus belongs to 

 Zanclus) . 



Body much compressed and elevated, covered with small scales, among 

 which smaller ones are distributed so that the series are not distinct; pre- 

 opercle with a very strong spine at its angle, the vertical limb entire in 

 the adult, usually serrulate in the young; interopercle entire or nearly so; 

 dorsal fin entirely scaly, with 8 to 11 graduated spines; soft dorsal usually 

 much elevated in front; anal with 3 graduated spines; branchiostegals 6; 

 air bladder with 2 posterior horns; pyloric ca^ca numerous. Species few, 

 in the tropical seas ; chiefly American ; the young brilliantly colored, the 

 adult usually dull colored. The species vary greatly with age, and have 

 been almost inextricably confused, as the age variations are much more 

 striking than the specific distinctions. The number of dorsal spines is 

 usually diagnostic, (rttijiia, operculum; anav Qa, spine.) 



POMACANTHUS : 



a. Dorsal spines VIII to X, 29 to 32. 



I. Scales in lateral line about 50 to 55; dorsal VIII or IX, 30 to 32. A. Ill, 24. 



Color of adult steel gray or scarcely yellowish; young with 4 whitish cross 



bands. ARCUATUS, 2094. 



bb. Scales in lateral line 70 to 90; dorsal usually X, 29 or 30; anal III, 23 or 24. 



Color black in adult, with yellow mottlings j base of pectoral yellow ; young 



with several yellowish cross bands. PAEU, 2095. 



POMACANTHODES (Pomacanthus ; etSos, likeness) : 



aa. Dorsal XI, 23; anal III, 20 to 22. Adult brown, with a dark pectoral band; young 

 with about 5 yellow curved cross bars. ZONIPECTUS, 2096. 



Subgenus POMACANTHUS. 

 2094. POMACANTHUS ARCUATUS (Linnseus). 



(BLACK ANGEL; CfllBIVITA; PORTUGAIS.) 



Head 3|; depth H; eye 3|; snout 2*. D. VIII or IX, 30 to 32; A. Ill, 

 24; scales 8-53-27, the larger scales surrounded by smaller ones; caudal fin 

 rounded. Color : adult grayish without tinge of yellow, the center of each 



