FISHES OF HAWAIIAN ISLANDS. 
399 
coppery black; ventrals rosy, black at tips; pectoral orange, paler below; iris blue surrounded by 
orange. 
Color of an example from Hilo when fresh, darkish black, faintly streaked with dark reddish. 
Color in alcohol, deep chocolate brown; snout, jaws, ridge of the head, ventrals and vertical fins, 
blackish; side with about 40 narrow grayish horizontal lines, those above running up vertically on 
dorsal, those below running down vertically on anal; pectorals dilute grayish-green. Described chiefly 
from an example (No. 03728) from Honolulu. 
This species, described originally from Guam, is rather common at Honolulu, from which place we 
have 11 specimens, 7 collected by Doctor Jenkins. It was also obtained at Honolulu by the Albatross, 
and we have 3 examples from Kailua, 1 from Hilo, and 5 from Xapoopoo, Hawaii. Our specimens 
are 4.4 to 7.6 inches long. 
The original description of this species was doubtless based on very young examples. Acanthurus 
strigosus, described by Bennett, from Honolulu, is the adult of the same species. 
Fig. 174.— Ctenoch&tus striatum i Quoy A: Gaimard i: after Gunther. 
Acanthurus strialus Quoy & Gaimard, Voyage riTnmie, Zool.. 373. pi. 63. tig. 3, 1824, young. Guam; Cuvier & Valenciennes, 
Hist. Nat. Poiss., x, 229, 1835 (Sandwich Islands).»« 
Acanthurus strigosus Bennett, Zool. Journ., IV. No. XIII. Art. Ill, 1828. 41, adult. Honolulu; Gunther. Cat.. 111,342, 1861 
(Bennett’s type); Gunther, Fische der Sudsec, IV. 116. taf. i.xxix. tigs. B & C, 1*75 (Sandwich Islandsi. 
Acanthurus ctenodon Cuvier & Valenciennes Hist. Nat. Poiss., \. 241, pi. 289, 1835, Carolines and New Guinea. 
Acanthurus (Ctenodon) strigosus, Steindachner, Denks. Ak. Wiss. Wien, LXX. 1900, 494 (Honolulu i. 
Ctenochietus strigosus, Jenkins. Bull. U. S. Fish Comm. XXII, 1902 (Sept. 23, 1903), 480 (Honolulu); Snyder, op. cit. (Jan. 
19. 1904). 534 (Honolulu); Seale, Occ. Papers Bishop Museum, vol. I, No. 3, 109,1901 (Guam). 
Genus 182. ACANTHURUS Forskal. 
Body oblong, compressed, covered with small roughish scales; tail with 2 large immovable, bony, 
keeled plates, these entirely wanting in very young individuals; head in the adult with the forehead 
prominent, developing a very long horn above the eyes, this wanting in the young; teeth small, in 
one series, slightly compressed incisors, usually with serrate edges; ventral fins incomplete, the rays 
i, 3; dorsal with 5 or 6 spines; anal with 2 spines; intestinal canal elongate. 
Herbivorous fishes of the East Indian and Polynesian seas, some of them remarkable for the bony 
frontal projection and for .the large ornate caudal spines. 
Acanthurus Forskal, Descr. Anim., 59, 1775 ( unicornis ). 
Monoccros Schneider, Syst. Ichth. 180, 1801 t biaciUcatus ). 
Naso Lac^pede. Hist. Nat. Poiss.. Ill, 106, 1801 {Jronticomis). 
"Quoted from Quoy and Gaimard, who recorded the species from Guam only. 
