FISHES OF HAWAIIAN ISLANDS. 
375 
longest, about equal to highest dorsal spine; membrane deeply notched between first and third spines, 
the latter closely connected with rayed portion of fin; border of anal fin extending a little farther 
posteriorly than that of dorsal; caudal truncate, upper rays slightly longer than lower, 1.27 in head; 
pectoral 1.17 in head; ventrals not quite reaching vent. 
Color in alcohol, dull silvery, brownish along the back, the dark color extending downward in 
region of pectoral fin; scales on greater part of body with darker centers and lighter edges; posterior 
part of body with many dark spots about half as large as pupil;- head with a vertical brownish-black 
band, the posterior border of which passes from insertion of dorsal through posterior border of eye, 
thence curving backward to origin of ventrals; width of band somewhat less than diameter of eye; 
interorbital area, snout, and upper lip dark brown; dorsal and anal narrowly bordered with dusky, 
rays tipped with white; scaled portion of dorsal with large irregular dusky spots separated' by narrow 
light spaces, which take the form of a network; caudal light, broadly bordered with dusky; pectoral 
plain; ventrals blackish toward the free margins. 
Described from the type, No. 50880, U. S. Nat. Mus., 2.3 inches long, from station 4032. Other 
specimens, among which are cotypes, No. 7732, Stanford Univ. Mus., differ little from the type. 
Specimens were taken off the southern coast of Oahu at. station 4032, depth 27 to 29 fathoms; station 
4031, depth 27 to 28 fathoms; station 4034, dept.h t 28 fathoms. 
Chsetodon corallicola Snyder, Bull. U. S. Fish Comm., XXII, 1902 (Jan. 19, 1904), 531, pi. 11, tig. 20, Albatross Station 4032 , off 
southern coast of Oahu. 
302. Chsetodon fremblii Bennett. Plate LI. 
Head 3.4 in length; depth 1.8; eye 3.5 in head; snout 3; maxillary 4.4; interorbital 3.5; D. xiv, 
21; A. nr, 18; scales 10-50-27. 
Body deep, compressed, back elevated; head deep, upper profile oblique; snout long, blunt, 
rounded; mouth small, jaws produced, equal; teeth small, in brush-like bands in jaws; eye small, 
superior, midway in length of head; margin of preopercle very finely serrate; interorbital space 
broad, convex; nostrils circular, close together, anterior elevated rim with fleshy flap; anterior dorsal 
spines enlarged, strong, sixth 1.6 in head, longer than posterior spines; eighth dorsal ray 1.6; eighth 
anal ray 1.6; caudal with upper rays longest, margin obliquely straight; pectoral 1.1 ; ventral pointed, 
nearly reaching anal, 1.2; scales small, very small on vertical fins and head; scales forming slightly 
oblique series. 
Color in life, pale yellow, lighter below, edges of scales darker; no ocular bar; a black saddle, 
narrowly edged with blue, in front of dorsal; a large black spot edged with blue extending over the 
posterior half of soft dorsal, the caudal peduncle and the last 2 rays of soft anal; side with 8 longitudinal 
(slightly oblique) narrow blue lines edged with black, 3 of which converge to the eye and 1 passes 
to the angle of the mouth; above these an interrupted blue line on the dorsal, and below them a con- 
tinuous blue line on the anal; pectoral translucent white, ventrals yellow; dorsal and anal yellow; 
soft dorsal narrowly edged with a submarginal line of black below and above white; lower edge of soft 
anal edged with black; caudal white, in its center a broad bar of yellow with its hind edge crescentic, 
narrowly edged above, below, and behind with black. 
Color in alcohol, very pale brown, light on lower surface; posterior half of soft dorsal, caudal 
peduncle and outer portion of posterior rays blackish; soft dorsal and anal with blackish submarginal 
lines; spinous dorsal with median dusky line; side with pale slaty slightly oblique longitudinal stripes 
(clear blue in life) margined narrowly with dusky; caudal with pale submarginal gray line, with basal 
gray cross band; pectoral and ventrals gray. 
Described from an example (No. 04531) 5. 8 inches long, taken at Honolulu, where the species is not 
rare. Doctor Jenkins collected 8 specimens at Honolulu and we have 5 from the same place, as well 
as 1 from Hilo. Length 3.25 to 6.25 inches. The Albatross also secured specimens at Honolulu. 
Chsetodon fremblii Bennett, Zool. Journ., iv, 1829,42, Sandwich Islands; Gunther, Cat., IT, 1C, 1860 (Sandwich Islands; 
includes type); Gunther, Fische der Stidsee, II, 39, taf. XXIX, fig. B, 1874 (Sandwich Islands); Steindachner, Denks. 
Ak. Wiss. Wien, LXX, 1900, 488 (Laysan); Jenkins, Bull. IT. S. Fish Comm., XXII, 1902 (Sept. 23, 1903), 473 (Honolulu); 
Snyder, op. cit. (Jan. 19, 1904), 531 (Honolulu). 
Chsetodon fremblii, Cuvier & Valenciennes, Hist. Nat. Poiss., VII, 24, 1831; after Bennett. 
