Fig. 159 . — Chsetodon lineolatus Cuvier & Valenciennes; after Gunther. 
294. Chsetodon lunula (Lacepede). “ Kikakcipu Plate LIV and Fig. 160. 
Head 3 in length; depth 1.6; eye 4 in head; snout 3.25; maxillary 3.9; interorbital 3.4; D. xii, 
24; A. in, 19; scales 9-36-18. 
Body very deep, compressed, back elevated; head deep; upper profile from interorbital space 
obliquely straight; jaws produced, subequal; mouth small; teeth fine, brushlike in jaws; eye median 
in length of head; margin of preopercle very finely serrate; interorbital space broad, convex; anterior 
nostril with thin fleshy rim and flap; posterior nostril a short oblique slit; anterior dorsal spines strong, 
enlarged, posterior slender, equal from middle posteriorly, last 1.8 in head; tenth dorsal ray 1.4; third 
anal spine longest, 1.7; eleventh dorsal ray 1.5; pectoral 1.2, rather broad; ventral pointed, 1.25; ventral 
spine 1.65; scales large on middle of side, those on vertical fins becoming very small; scales in slightly 
oblique series on side; ventrals with scaly flap at base; caudal broad, deep, margin slightly rounded; 
least depth of caudal peduncle 3 in head; lateral line arched, not continued beyond base of soft dorsal. 
Described from an example (No. 04540) taken at Honolulu. 
366 BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Described from an example (No. 04535) taken at Honolulu. 
We have examined only 3 Hawaiian specimens, 4.75 to 9.2 inches long, all from Honolulu, where 
the species is not very common, and many specimens from Samoa. The species is of wide distribution 
in the Pacific and Indian oceans. 
Chsetodon lineolatus Cuvier & Valenciennes, Hist. Nat. Poiss., VII, 40, 1831, Isle of France; Gunther, Fische der Siidsee, II, 
45, taf. XXXIV, fig. A, 1874 (Paumotu, Society, Navigator, Kingsmill, and Sandwich islands); Steindaehner, Denks. 
Ak. Wiss. Wien, LXX.1900, 489 (Honolulu); Snyder, Bull. U. S. Fish Comm., XXII, 1902 (Jan. 19, 1904), 531 (Honolulu). 
Chsetodon lunatus Ehrenberg in Cuvier & Valenciennes, Hist. Nat. Poiss. VII, 57, 1831, Red Sea. 
Tetragonoptrus lineolatus, Bleeker, Poiss. Madagascar, 95, 1874 (Mauritius). 
Tetragonoptrus (Oxy chsetodon) lineolatus, Bleeker, Verh. Kon. Ak. Wet., XVII, 1877,102 (Cocos; Sumbawa; Flores; Ternate; 
Amboyna; Banda). 
