FISHES OF HAWAIIAN ISLANDS. 
391 
Color in life (Field No. 02990) dull bluish olive, upper part more bragsy, wavy brassy lines sep- 
arated by narrower blue one most distinct on upper third of side; head marbled with blue-black and 
pale yellowish; a broad brassy interocular band; a narrow brassy line extending forward and curving 
upward from anterior part of eye, this continued around under eye and on to upper end of opercle; a 
brassy band behind eye and faint lines of same above eye; lips mottled with black and bluish; lower 
jaw and throat pale bluish; a narrow brassy line along back at base of dorsal fin, and a similar bluish 
one along base of anal; dorsal fin yellow, somewhat mottled with olivaceous along base anteriorly, and 
with bluish on last few rays; a narrow blue line along base; caudal bluish, with numerous small 
blackish olive spots, yellow at base, brightest above; tips of fins black; anal olivaceous with narrow 
stripes of blue and yellowish, distal portion of fin blackish, narrowly bordered with blue; pectoral 
smoky below, yellowish above, the anterior edge bluish; ventrals blue-black, paler at base; lance 
white, surrounded by black; iris brassy, bluish above. (Caudal spots wanting in young.) 
Another example (Field No. 03369) olive brown, streaked with faint blue; a yellow area about 
eye; cheek with light blue lines; edge of opercle black; no shoulder spot; dorsal golden brown with a 
pale blue and a golden line at base, the margin blackish, last rays with bluish shadings and lines; anal 
dark brown with very faint bluish streaks, a faint blue and a fainter golden line at base, and a black 
and a blue line at tip; caudal with blue gray reticulations around golden brown spots, well defined; a 
golden ring at base of fin, lobes dusky; ventrals with bluish rays, yellowish membranes and blackish 
-edges; pectoral yellowish-brown, upper ray black; no black spbt in axil of dorsal and anal. 
Field No. 03500, body with numerous narrow wavy longitudinal golden-yellow alternating bluish- 
gray lines in life; dorsal bright yellow, narrow blue line along base of fin, immediately below this a 
narrow golden yellow line across base of caudal between spine and base of rays; anal dusky yellowish, 
with 4 distinguishable and traces of perhaps 2 or 3 other bars of yellow running parallel with outline 
of body; caudal bluish-gray with many indistinct dusky spots; pectoral golden yellow; ventrals bluish- 
gray with yellowish tinges; yellow about eyes; yellow bar from eye to eye; front and sides of head 
covered with yellow wavy lines alternating with blue; chin and breast bluish. 
Field No. 03383, in life, general color brownish-ocher, bluish toward belly and lower jaw; lower 
jaW dirty ultramarine; snout and gill-cover striped with blue and cadmium; a broad yellow stripe 
running from upper part of gill-opening at opercle through eye, but not joined over frontal region, this 
stripe outlined with blue; anterior portion of dorsal deep cadmium, 8 to 10 rays of posterior part blue, 
blending into the cadmium; narrow blue streak running entire length of dorsal at base; caudal deep 
blue; "peduncle cadmium; anal olivaceous, cadmium at anterior 6 or 7 rays, blue posteriorly; narrow 
blue stripe running entire length of anal, and narrow line of light blue on outside edge; ventral cad- 
mium with stripes of light blue running lengthwise, edged with neutral tint; first pectoral ray blue, 
next 3 cadmium, others blue, all rays cadmium at base; eye yellow, iris black. 
Color in alcohol, dark chocolate brown; side with 35 or more wavy bluish longitudinal lines, 
those on head also horizontal; front of eye above pale brown; dorsal grayish on spiny portion, 
becoming dark slaty on soft portion; anal dark slaty; soft dorsal and anal each with 7 or 8 blackish 
longitudinal lines; caudal dark slaty, marked with many small blackish spots; base of caudal yellowish 
white; caudal spine with a rather broad blackish margin; pectoral deep olive brown, terminal portion 
broadly pale brown; margin of gill-opening blackish; margin of the anal narrowly bluish. 
This species is very common about Honolulu. We have also a number of larval examples less than 
an inch long, from Hilo, which correspond perfectly with Quoy and Gaimard’s account of Acanthurus 
argenteus, but no specific characters, except the number of fin rays, can be determined. The latter 
species, from Guam, can never be certainly identified, and the name argenteus should not be used, 
although it was very likely intended for the young of II. dussumieri or II. matoides. The species is rep- 
resented in our collection by 59 specimens from Honolulu and 2 from Hilo. Of the specimens from 
Honolulu 7 were obtained by Doctor Jenkins, 5 by the Albatross in 1896, 4 by Doctor Wood, 2 by 
Jordan and Snyder, and the others by us. Specimens w'ere also secured by the Albatross in 1902. 
? Acanthurus argenteus a Quoy& Gaimard, Voy. Uranie, Zool., 372, pi. 63, fig. 2, 1821, Guam; larval form, not identifiable. 
Acanthurus dussumieri Cuvier & Valenciennes, Hist. Nat. Poiss., X, 201, 1835, lie de France; Gunther, Fisehe ddr Stidsee, 
112, pi. LXXII, 1875 (Sandwich Islands); Steindachner, Dent. Ak. Wiss. Wien, LXX, 1900, 493 (Honolulu). 
a Cuvier & Valenciennes record Acanthurus argenteus from the Sandwich Islands, although Quoy & Gaimard, their sole 
authority, mention the Mariannes only. In the same way they record Acanthurus striatus Quoy & Gaimard, from the 
Sandwich Islands, although the discoverers found it at the Mariannes only. H. striatus can not be certainly identified, as 
3 species (2 at Samoa and 1 at Tahiti) have striped larvae corresponding to the account given by Quoy and Gaimard. Some 
of these are evidently the young of Ctenochxtus strigosus, others we can not make out. Probably the records from Guam 
and Hawaii belong to Ct. strigosus, in which case the name striatus has priority over strigosus. 
