764 PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. XXIII. 



and broad. Two species are known, the type, Chaxmim ndsakncs and 

 the ('((luilly abundant Chasmias dolkhognathm, of Hilo-endorf, which 

 is found all alono- the shore from Hakodate to Nagasaki, ])etween tide 

 juai-ks. 



72. CH^TURICHTHYS STIGMATIAS Richardson. 



This species, the habitat of which was heretofore unknown, is repre- 

 sented ))y two poorly preserved specimens collected at Sasuna, Tsu- 

 shima, Japan. Richardson's specimens collected by the "Sulphur" 

 wei-e in a bottle labeled "Southern Pacific," l)ut Richardson observes: 

 "As the bottle held several species from the China Seas, there appears 

 some doubt as to the native place of the fish." It proba])ly came from 

 China. 



One of our specimens is here described. 



Head 3^ in length; depth 7; depth of caudal piMluncle 4f in head- 

 eye 4f ; snout 8^; maxillary 2; D. Vni-22; A. li>; P. 24; scales in 

 lateral series about 57; in transverse series about 14. 



Body elongate posteriorly, the dorsal a.id ventral contours sloping 

 gradually to the caudal peduncle, which is narrow and compressed^ 

 Head large, wider than body, the width equal to distance from tip of 

 snout to posterior border of ej^e. 



Eyes high in head, oblong; directed ol)li<,u(4y upward, more of the 

 eye being visible when viewed from above than when seen from the 

 side. Interorbital space slightly concave. Mouth large, oblique; 

 lower jaw projecting somewhat beycmd the upper; lips thin; maxillary 

 extending to a perpendicular through middle of pupil; entirely con- 

 cealed beneath a pendulous dermal fold of the suborbital. Tongue 

 broad, concave anteriorly. Teeth in two rows on each jaw, slender, 

 pomted, and curved; those in outer row stronger and fang-like. Gill- 

 opening extending far forward, the isthmus narrow. Three large 

 papilla; on inner edge of shoulder girdle. Gill-rakers on first arch 

 3+11, long and slender. Lower jaw with three barbels on (Mch side, 

 the distance between them equal to the diameter of the orbit; anterior 

 ))arbel shorter and thicker than the others. 



Occiput, opercles, and preopercles with small, round, smooth scales, 

 scarcely or not at all imbricated. Body with cycloid scales, small near 

 the head, growing larger posteriorly. 



Dorsal fins separate; the first 6 spines evenly spaced; the others 

 farther ajiart. When depressed, th(> fin does not extend to insertion 

 of soft dorsal. Dorsal rays growing higher from before backwai-d; 

 when depressed, rt'aching base of uppei- caudal rays. Anal inserted 

 l)elow base of third dorsal ray; the rays not reaching so far posteriorly 

 when depressed as do those of the dorsal. Caudal long, pointed, with 

 short accessory rays above and below (hence the name ''chaitu- 

 richthys"); short dorsal and ventral rays of the fin growing far for- 



