FISHES OF HAWAIIAN ISLANDS. 
369 
anal clear light yellow, each with a narrow subterminal black bar posteriorly, the edge whitish; caudal 
peduncle with a similar black bar at base, followed by a white or whitish bar; a pale yellowish bar 
at base of caudal rays; caudal tin whitish with dusky dots; ventral yellow. 
Color in alcohol, pale brown; a blackish band from occiput down through eye across side of breast; 
posterior margin of soft dorsal and anal broadly blackish above, edge very narrowly grayish; back 
above with large blackish blotch fading above and below in grayish; a dark or blackish band on 
front of caudal peduncle; 7 or 8 oblique dusky streaks along margin of large scales on front of side 
above; snout grayish above. 
The above general description is based chiefly upon a specimen from Honolulu, from which place 
we have 17 examples, the species being rather common about the reefs. The younger examples show 
the wedge-shaped form of the lateral spot which suggested the name sphenospilus, but these intergrade 
fully with the ordinary form both in Hawaii and Samoa. 
Pig. 161. — Chietodon unimaculatus Bloch. Type of C. sphenospilus Jenkins. 
Chsetodon unimaculatus Bloch, Ichth., VI, 54, pi. 201, fig. 1, 1788, East Indies; Fowler, Proc. Ac. Nat. Sci. Phila. 1900, 512 
(Sandwich Islands); Snyder, op. cit. (Jan. 19, 1904), 531 (Honolulu). 
Tetragonoptrus (Lepidochxtodon) unimaculatus, Bleeker, Verh. Ivon. Ak. Wet., XVII, 1877, 87 (Java; Solor; Timor, Ternate: 
Buro; Amboyna; Ceram; Banda). 
Chsetodon sphenospilus Jenkins, Bull. U. S. Pish Comm., XIX, 1899 (June 8, 1901), 395, fig. 8, Honolulu (Type, No. 49705, U. S. 
Nat. Mus.); op. cit., XXII, 1902 (Sept. 23, 1903), 473 (Honolulu, type and cotypes). 
296. Chaetodon punctatofasciatus Cuvier & Valenciennes. Fig. 162. 
Head 3.5 in length; depth 1.5; eye 3.25 in head; snout 3; maxillary 5; interorbital 3.6; D. xiii, 
25; A. in, 18; scales 7-50-18. 
Body oblong, deep, compressed, back elevated; head deep, compressed, bluntly pointed; upper 
profile oblique undulate from snout to origin of dorsal; jaws small, bluntly produced, snout a little 
longer than eye, blunt, rounded above; mouth small; teeth thin, in rather narrow brush-like bands in 
jaws; eye small, high, anterior; nostrils close together, circular, anterior with elevated fleshy rim, 
posterior larger; interorbital space rather narrow, convex; dorsal spines enlarged at first, strong, 
F. C. B. 1903—21 
