NO. 1714. JAPANESE SEA BA8S.— JORDAN AND RICHARDSON. 463 



head; maxillary reaching vertical from back of pupil, 2.25 in head, 

 1 .66 in pectoral; interorbital space strongly convex, 1.2 times diameter 

 of eye. Body strongly compressed; back elevated, highest under 

 first dorsal spine; profile convex; nape prominent; lower jaw 

 longest. Teeth in two series in sides of lower jaw; canines rather 

 small; preopercle with fine serra? on posterior margin, the angle nearly 

 a right angle, with 3 or 4 enlarged points; lower margin without serra- 

 tures; middle spine of opercle longest, nearer lower spine than upper; 

 opercular flap pointed, the point nearer axil of pectoral than lateral 

 line; gill-rakers 16 to 17. Cheeks and opercles and top of head 

 scaled, those on opercle rather larger than scales on body; lower jaw 

 with some very fine embedded scales; scales ciliated. Spinous 

 dorsal originating far forward, the first spine inserted nearly over 

 upper corner of gill-opening; longest dorsal spine (the fourth) 2.3 in 

 head; fourth spine and those behind it subequal; height of soft 

 dorsal 1.6 in head; caudal subtruncate; anal not angulated; pectoral 

 1.25 in head; ventral 1.16, barely reaching vent. 



Color, in spirits, uniform dark purplish brown; fins blackish, the 

 caudal, anal and pectorals with a faint narrow pale edge. 



Of this species we have three specimens from Wakanoura, the 

 largest 6.25 inches in total length. Doctor Boulenger states that it 

 grows to more than 1 foot in length. This species is quite unlike the 

 other Japanese EpinepJielinse, being closely related to Trisotropis 

 {Archoperca) houlengeri of the west coast of Mexico. 



(dkpfi(r, skin; Tzrepdv, fin.) 



12. Genus CHELIDOPERCA Boulenger. 

 Chelidoperca Boulenger, Cat. Fishes, vol. 1, 1895, p. 304 (hirundinacea) . 



Body elongate, moderately compressed; mouth large, protractile; 

 maxillary without evident supplemental bone; jaws with broad bands 

 of villiform teeth, some of the inner ones in middle of upper jaw 

 depressible; teeth on vomer and palatines; tongue smooth; pre- 

 opercle serrate; opercle with two spines ; gill-rakers moderate; bran- 

 chiostegals seven; scales moderate, thin, irregularly ciliate; head 

 partly scaled, the tip of snout, maxillaries, and front of chin naked; 

 lateral line complete; dorsal fins confluent; dorsal spines 10; spinous 

 and soft dorsal subequal in length; anal III, 6; caudal lunate; ven- 

 trals anterior to pectorals, close together, with a moderate spine; 

 pectorals pointed. 



"Posterior processes of premaxillaries not extending to the fron- 

 tals; supraoccipital and parietal crests short, smooth area of cranium 

 extending posteriorly to a line connecting the preopercular borders." 

 (Boulenger.) 



Western Pacific and Indian oceans; two species. 



(j£>^^^aiv, swallow ; tts^/ct;, perch.) 



