BULLETIN OK THE UNITED STATES FISH COMMISSION. 
41C. 
The only record of the occurrence of this species within our limits is that given t.y Steindachner. 
Its relation toother nominal species of the genus is somewhat uncertain. 
lirt/istt s turnitlus Richardson. Yoy. Sulphur, 12G, |>1. 59, figs. 1 and 2, 1843, East Indies?; Gunther, Cat., VIII, 215, 1870. 
Balistcs {Liarus) aureolas, Steindachner, Denks. Ak. Wiss. Wien, LXX, 1900, 517 ( Laysan Island). 
Genus 187. XANTHICHTHYS Kaup. 
Body oblong, covered with moderate-sized smoothish scales, those on posterior part of body 
usually with blunt keels; no enlarged scutes behind gill-opening; no lateral line, or only a trace at 
the shoulder; a groove before the eye; 3 to 5 narrow grooves on the cheek; caudal peduncle deeper 
than broad; dorsal spines 2, comparatively small; soft dorsal and anal moderately elevated, the tips 
acute; caudal lunate; mouth small, placed high, the teeth as in Ba/idcs; lower jaw much projecting; 
ventral flaps undeveloped, immovable, and scaled over. Chiefly American; allied to Canthhlenni 
but differing in several respects, especially in the grooved cheeks, projecting chin, and fewer dorsal 
spines. 
Xanlhiclithus (Kaup) Richardson, Encyclopedia Britannica, Ed. XII, 313, 1850 (curassavieus), 
340. Xanthichthys lineopunctatus (Hollard). Fig. 182. 
Head 3.5 in length; depth 2.5; eye 4.75 in head; snout 2; interorbital 3; I). ii-i, 29; A. i, 27; 
scales 37, 23 from anal to origin of spinous dorsal; first dorsal spine 2 in head, equal to snout; third 
dorsal ra v longest, 1.0 in head, equal to longest caudal ray, last caudal ray shortest, 4.5 in longest; third 
anal ray 1.9 in head, 2 in soft dorsal base; last anal ray shortest, 4.5 in longest ; pectoral 2.3 in head. 
Body oblong, compressed, blunter anteriorly; dorsal and ventral outline similarly curved; head 
compressed, deep, blunt; eye small, high, posterior; snout blunt, deep, about half of head; mouth 
small, terminal, high, its width equal to eye; jaws unequal, the lower, below the lip, produced, making 
the chin prominent; teeth pale brownish, notched, incisor-like; the 2 front lower teeth not so greatly 
notched as the next 2, the anterior edge of the latter being produced, making t his part canine-1 ike; upper 
teeth not so greatly notched, smaller, and shutting outside lower teeth; groove in front of eye about 
equal to eye; the. 5 grooves on cheek are below eye, extending from near angle of month and below, 
backward to gill-opening and base of pectoral; scales comparatively large, largest on middle portion of 
body, those from pectoral region running downward and backward and not as those on body; a slight 
tubercle on center of scales on posterior portion of side, forming low lines or ridges on median part of 
scales; gill-opening surrounded bv small scales, no large plates; origin of spinous dorsal over gill¬ 
opening, first spine short, stout, wedge-shaped, roughly rugose anteriorly, top incisor-like, sometimes 
saw-like; second spine about half first; soft dorsal and anal concave, the rays shortening posteriorly 
