CENTRACION GALEATUS. 185 



length of the orbit behind the bases of the ventrals, its base distant two lengths or 

 more from the origin of the caudal, hind margin less concave than that of the 

 first dorsal. Anal smaller, base equal two thirds of base of second dorsal, hind 

 margin obUque, slightly concave, an obtuse rounded inner angle, fin hardly 

 reaching origin of subcaudal when applied, base distant one and one half times its 

 own length. Caudal shorter than the head, deep in anterior portion, w^hich is 

 produced to a shape in some degree like that of a dorsal fin, concave in hind 

 margin. Ventrals broad, short, hind margins oblique. Pectorals long, hardly 

 reaching the origin of the ventrals, outer angle rounded, hind margin oblique, 

 slightly concave. Scales small, with a median keel; mixed with larger, irregular, 

 subquadrangular scales, with or without small lateral prominences in the dorsal 

 regions, very small and smoother on the lower surfaces. 



Dark rusty brownish, with darker areas on the end of the snout, in a trans- 

 orbital band that widens below the eyes, and in broad and narrower bands across 

 the back : first broad band across the nape, second and third at the origin and at 

 the tip of the first dorsal, fourth, and fifth at the origin and tip respectively of the 

 second dorsal, sixth at the tip of the anal and seventh on the caudal; the inter- 

 mediates are somewhat narrower. Fins dark. Gill openings narrowly edged 

 with white. Lower surfaces slaty to yellowish. 



The specimen described is a female of about 30 inches from the Sagami Sea, 

 Japan. 



CeNTEACION GALEATUS. 



Cestracion galeatus Gunth., 1870, Cat. fishes Brit, mus., 8, p. 416. 



Heterodontus galeatus Maclay & Macleay, 1878, Proc. Linn. soc. N. S. W., 3, p. 313, pi. 25. 

 Gyropleurodus galeatus Watte, 1899, Mem. Austr. mus., 4, pi. 1; Regan, 1908, Ann. mag. nat. hist., 

 ser. 8, 1, p. 495. 



Form similar to that of C. francisci. Orbital ridges strongly developed, 

 extending outward so as to overhang the orbits, ending with some degree of 

 abruptness. Teeth tricuspid, on large specimens, probably like the other species 

 of the genus when young possessing a larger number of cusps; molars elongate, 

 narrow, not swollen laterally as in C. philippi, and retaining the median keel. 

 Anterior gill opening more than twice as wide as the hindmost, three above 

 pectoral base. Origin of the first dorsal above the hinder portion of the base of 

 the pectoral, extremity reaching beyond the origin of the ventrals. 



Second dorsal smaller, less than twice the length of the base of the first 

 dorsal farther back (l|), tip reaching above origin of anal. 



Anal smaller than second dorsal, origin one length of the base farther back 



