FISHES OF HAWAIIAN ISLANDS. 
85 
series in front, becoming 3 posteriorly; 2 rows (the outer row being larger) of bluntish, conical teeth 
on each side of upper jaw, preceded by a patch of 8 on extremity of nasal bone; smaller teeth on 
vomer in a band of 2 series; dorsal and anal fins rather high, the highest part of dorsal exceeding 
length of snout; dorsal beginning at nape, at a distance from snout equal to half of length of head; 
pectoral short, 1.5 in its base, 1.75 in snout, its free margin lunate; gill-opening oblique, its width 
equaling base of pectoral and 1.75 in isthmus; end of tail rather blunt and little compressed. 
Ground color, in spirits, light olivaceous; round brown spots in 4 series on side, extending on 
dorsal but becoming fainter on fin; second series on lateral line, the spots of third mostly smaller; 
spots of different series sometimes alternating regularly, sometimes without definite order; diameter 
of most of spots in upper 2 series exceeding snout; a fourth series of much smaller spots (not half the 
Fig. 19. — Myrichlhys xtypurus (Smith & Swain); from the type. 
diameter of largest ones) along side of belly, almost disappearing on tail; small, irregular, more or 
less confluent spots on upper half of dorsal, the fin narrowly margined with whitish; anal plain, light 
olivaceous; pectoral with 1 or 2 small, obscure, brown spots. 
One fine specimen (No. 26817, U. S. Nat. Mus.), 24.25 inches in length, was taken at Johnston 
Island, about 700 miles southwest of the Hawaiian Islands, in the spring of 1880, by the captain of a 
vessel belonging to the North Pacific Guano Company. 
Ophichthys stypurus Smith & Swain, Proc. U. S. Nat. Mus., V, 120, July 8, 1882, Johnston Island. 
Genus 52. CALLECHELYS Kaup. 
Short oval head; straight depressed snout, and very depressed mandible; fore nostril tube 
dependent, the hinder one situated under the eye and furnished with a small flap, no pectorals; 
highly developed dorsal; less expanded anal; only a solitary nasal tooth, which is large, elongated, 
blunt, and inclined backward; 8 teeth implanted in the elliptical palatine bone, short, slender, and 
curved; about 10 vomerines, of which the 6 anterior ones are stouter, and are arranged in two rows; 
24 teeth stand on the entire border of the mandible. (Kaup.) This genus contains one American, 
three East Indian, and one Hawaiian species, which agree in the elongate, compressed body, absence 
of pectoral fins, and the anterior insertion of the dorsal. In other respects Callechelys is close to 
Ophichlhus. 
Callechelys Kaup, Apodes, 28, 1856 (guichenoti) . 
