36 IOWA STUDIES IN NATURAL HISTORY 
Chetodon striatus, Evermann & Marsh, op. cit., 249, colored plate 34. 
One specimen (no. 83), 5 inches long, taken May 14, at Bar- 
bados. 
Head 3; depth 1.5; eye 3; interorbital 2.8; snout 2.5; D. XII, 
21; A. ILI, 18; scales 40. 
Color in alcohol dull yellowish, a black ocular band width of 
pupil from near origin of dorsal through eye to lower edge of 
opercle a black spot size of eye on middle base of soft dorsal. 
38. Angelichthys ciliaris (Linneus). Blue Angel-fish; Isabelita. 
Chetodon ciliaris, Linneus, Syst. Nat., ed. X, 276, Indies. 
Angelichthys ciliaris, Jordan & Evermann, op. cit., 1684, pl. 254; Ever- 
mann & Marsh, op. cit., 252, colored plate 37. 
One specimen (no. 87), 7.25 inches long, taken. in fish pot 
May 28, at Barbados. 
Head 3.5; depth 1.7; eye 4.25 in head, 1.5 in interorbital 
width ;: snout 2.1: DX TV p20c/Ac Ate Ait 
Color in aleohol dull brown or drab; a black ocellus with a 
dark blue rim just in front of spinous dorsal; dorsal and anal 
edged with deep blue. 
39. Hepatus ceruleus (Bloch & Schneider). Blue Tang. 
Acanthurus ceruleus Bloch & Schneider, Syst. Ichth., 24, 1801, Carolina. 
Teuthis ceruleus, Jordan & Evermann, op. cit., 1691; Evermann & Marsh, 
op. cit., 253, colored plate 38. 
Three specimens (nos. 129, 130, and 131), 4 to 6 inches long, 
taken in fish pots May 14 and 31, at Barbados. 
Head 3.5; depth 1.7; eye 2.5 in snout; D. TX, 26; A. III, 25. 
Color in aleohol brown with indistinct narrow longtitudinal 
stripes on side; vertical fins dark; pectoral yellow. 
40. Hepatus hepatus (Linneus). Common Barbero; Tang. 
Teuthis hepatus Linneus, Syst. Nat., ed. 12, 507, 1766, Carolina; Jordan 
& Evermann, op. cit., 1691; Evermann & Marsh, op. cit., 254. 
One specimen (no. 134), 6 inches long, taken June 14, at 
Barbados. 
Head 3.7; depth 2; eye 2.1; D. 1X; 25; A. TIL, Db. 
Agrees only fairly well in color with typical hepatus; the 
distal portion of pectoral apparently yellow. 
41. Hepatus bahianus (Castelnau). Ocean Tang; Medico. 
Acanthurus bahianus Castelnau, Anim. Nouv. ou Rares de 1’Amer. Sud, 
24, pl. 11, fig. 1, 1855, Bahia. 
