FISHES OF HAWAIIAN ISLANDS. 3t>9 
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 fin w hitish with dusky dots; ventral yellow. 
Color in alcohol, pale brown; a blackish band from occiput dow n 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 sphmospilus, but these intergrade 
fully with the ordinary form both in Hawaii and Samoa. 
Fig. 161 .—Chsetodon unimaculatus Bloch. Type of C. sphenospilus Jenkins. 
Chxtodon unimaculatus Bloch. Ichth., VI. 54. pi. 201. tig. 1. 1788, East Indies; Fowler, Proc. Ac. Nat. Sci. Phila. 1900. 512 
(Sandwich Islands); Snyder, op. cit. (Jan. 19, 1904), 531 (Honolulu). 
Tetragonoptrus ( Lepidochsetodon) unimaculatus, Bleeker, Verh. Kon. Ak. Wet., XVII, 1877,87 (Java; Solor; Timor; Ternate; 
Buro; Amboyna; Ceram; Banda). 
Chxtodon sphenospilus Jenkins, Bull U. S. Fish Comm., XIX, 1899 (June 8,1901), 395, tig. 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. xm, 
25; A. hi, 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 w ith elevated fleshy rim, 
posterior larger; interorbital space rather narrow, convex; dorsal spines enlarged at first, strong, 
F. C. it. 190S—21 
