368 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
peduncle; dorsal pale yellow at base, tips of spines and enveloping membranes black; soft dorsal 
with a pale orange band at base, next a narrow greenish olive one, then a broader yellow one, a very 
broad orange one broadening behind, a narrow yellow one, and finally a narrow black border; basal 
half of anal fin pale yellow, a median bar of reddish-orange spots, next a broad yellow bar, a narrow 
black bar, then tip broadly white; pectoral and ventrals pale yellow; iris black. 
Color in life of a specimen (field No. 2til) obtained by Jordan and Kellogg at Apia in 1902, deep 
golden, a little orange tinged and more dusky on back; chin gray; patch behind ocular stripe clear 
gray; oblique black band bordered before and behind by clear golden brown, a blackish blotch at first 
dorsal spine with golden brown behind it; spot on caudal peduncle and stripe on dorsal golden, a 
brown shade across dorsal and anal, besides black tips and dark-brown bands; ventral golden with 
some dusky; pectoral and edge of caudal colorless. 
Color in alcohol, very pale brown, back* above with a very pale olivaceous tinge; a blackish brown 
band across interorbital space, including eye, running behind down on preopercle, not continued below, 
narrowly bordered in front below eye with white; adjoining interorbital band, continued on side of 
head and down on opercle, a broad white band; a broad blackish-brown band from opercle up to 
middle of spinous dorsal broadly edged with white; a blackish-brown blotch on back at base of first 
5 dorsal spines, bordered below with whitish; side with oblique golden olive bauds following courses 
of scales; marginal portion of spinous and soft dorsal broadly blackish, not continued on posterior rays; 
a dusky streak running along basal portion of soft dorsal broadens out on posterior rays and forms a 
blackish blotch at front of caudal peduncle, bordered in front and behind with whitish; margin of 
caudal whitish, bordered in front with a broad blackish bar; pectoral grayish. 
We have examined 29 examples from Honolulu (9 collected by Jenkins), where the species is 
common in the markets, 4 from Kailua, 5 from Hilo, and 10 from Clocoanut Island at Hilo. They are 
from less than an inch to 7.2 inches long. Specimens were obtained by the Albatross at Honolulu 
and Waialua Bay, Oahu; Hilo and I’uako Bay, Hawaii; common at Samoa. 
Pomacentrus lunula Laeupode, Hist. Nat. Poiss., IV, 507, 510, 513, 1802, no locality given. 
Chu todnn lunulatua Quoy A: Gaimard, Voy. 1 Trailie, 3S1, 1824, Sandwich Islands. 
Chutodon tau-nigrum , Fowler, Proc. Ac. Nat. Sci. Phila. 1900, 513 (Sandwich Islands); not of Cuvier A: Valenciennes. 
Chictodon lunula, Cuvier & Valenciennes, Hist. Nat. Poiss., VII, 59, pi. 173, 1831; Gunther, Fische der Sudseu, II, 12, taf. 
XXXIII, 1871 (Tahiti, Sandwich Islands, Society Islands); Steindachner, Denks. Ak. Wiss. Wien, LXX. 1900,489 
(Honolulu); .lenkins, Bull. U. S. Fish Comm., XXII, 1902 (Sept. 23, 1903), 473 (Honolulu); Snyder, op. fit. 'Jan. 19, 
1901), 531 (Honolulu; Waialua Bay, Oahu; Hilo; Puako Bay, Hawaii). 
<'fuetodon biocellatns Cuvier Valenciennes, Hist. Nat. Poiss., VII, 02, 1831, Oualan, young; Fowler, Proc. At, Nat. sci. 
Phila. 1900,512 (Sandwich Islands). 
Chietodon occllatns Bleeker Nat. Tyds. Neal. Ind., VI. 1854, 212, Isle of Timor. 
Clartodon wirbcll Kaup, Nat. Tyds. Dierk., I, 1863, 120, Canton. 
Sarothrodus lunula, Bleeker, Ned. Tyds. Dierk., I, 1803, 156. 
Tetragon opt rus bioccl'ulus, Bleeker, Ned. Tyds. Dierk., I. 1803,209 (Isle of Timor). 
Trtragonoptrus lunula, Bleeker, Poiss. Madagascar, 95, 1874, Mauritius. 
Tctragonoptrus ( Cluctodontopx ) fasciatus, Bleeker, Atlas. IX, 41. Taf. 374, rig. 2 (Sandwich Islands, etc.); not of Forskal. 
295. Chaetodon unimaculatus Bloch. “ Kikakapu.” Plate L and Fig. 161. 
Head 3.4 in length; depth 1.7; eve 3.35 in head; snout 6; maxillary 3.35; interorbital 3; D. xm, 
23; A. in, 20; scales 9-45-25. 
Body deep, compressed, back elevated; head very short, upper profile obliquely concave; snout 
short, blunt, rounded; jaws equal, slightly produced; mouth small, gape short; teeth coarse, brush¬ 
like, iu rather broad bands; eye small, midway in length of head; marginal portion of preopercle 
finely serrate; interorbital space broad, slightly convex; nostrils close together, anterior with fleshy 
flap, posterior rounded; anterior dorsal spines strong, enlarged, posterior spines slender, longest, and 
about equal, last 1.5; seventh dorsal ray 1.3; second and third anal spines about equal, third 1.7; 
sixth anal ray 1.4; pectoral 1.1, pointed; ventral pointed, 1.2, spine sharp 1.6; caudal peduncle (tom- 
pressed, its least depth 2.8; scales large on front of side above, otherwise small, very small on ventral 
tins, arranged in nearly horizontal series. 
Color in life of a specimen (field No. 388) obtained by Jordan and Kellogg at Apia in 1902, light 
golden above, gray beneath, shoulders and front of sides with angled ( -shaped) vertical bars of 
deep yellow; ocular band very broad from front of dorsal, meeting its fellow across breast; snout and 
forehead gray; a large, round black spot on middle of side of back surrounded by gray; dorsal and 
