NO. 1293. JAPANESE BLENNOID FISHES— JORDAN AND SNYDER. 485 



30. OPISTHOCENTRUS ZONOPE Jordan and Snyder, new species. 



Head 5i in length; depth 5^; depth of caudal peduncle 2| in head; 

 eye 4^; snout 3^; interorbital space 4f ; D. LI; A. II, 38. 



Bod}^ a little deeper than in 0. ocellatus; interorbital space broad 

 and flat; jaws equal; maxillary short, scarcely reaching anterior edge 

 of pupil; teeth small, blunt, widely spaced, in narrow bands on jaws, 

 none on vomer or palatines; gill-rakers on first arch 13, small, slender, 

 pointed; pseudobranchia? large; nostrils with tubes; no filaments on 

 head; large mucous tubes on head; a row on lower jaw, on posterior 

 and anterior borders of eye, and another extending from eye to upper 

 edge of gill-opening; a large pore between eyes and also on nape. 

 Head with scales on cheeks and occiput; body with .small, smooth 

 scales; membrane of dorsal fin with a few minute scales extending 

 upward on its base, more evident on posterior part; no lateral line. 



Dorsal inserted above base of pectoral, joined to the caudal poste- 

 riorl}^ a notch separating them; membi'ane of fin thickened anteriorly, 

 not incised along it'^ edge: spines slender except the last 12 or 15, 



.. .^.^4^^^f,1j^ 



Fig. 21.— OPISTHOCENTRUS ZONOPE. 



which are strong, stiff, and curved, those near middle of fin contained 

 two times in head; anal inserted below nineteenth spine of dorsal, the 

 s])ines slender, weak, and not pungent, the rays near the middle con- 

 tained about 2 f in head; the fin not connected with the caudal; the 

 membrane rather thin, incised between the rays; caudal rounded, 1^ 

 in head; pectoral broad, rounded, \\ in head, no ventrals. 



Color, light olive-green, the sides with indistinct, irregularly shaped, 

 A^ertical lines or bars, in some specimens connected in a network; head 

 with a number of sharply defined, narrow, dark bands, one passing 

 across interorbital space through eye, downward on chin, another 

 extending from eye backward and downward to subopercle, a curved 

 bund passing over occiput and connecting eyes, another passing over 

 the nape and downward on opercle; a narrow band extending from 

 base of pectoral upward to beginning of dorsal (these lines present 

 and sharply defined on a series of 25 specimens); base of caudal with 

 a narrow, vertical, dark band; dorsal with -l large, round, black spots 

 with faint, light margins, the first spot on the twelfth and thirteenth 

 spines, the second on the twenty-fifth and twenty-sixth, the fourth 



