NO. 1319. 



SOME JAPANESE FISHES-JORDAN AND STARKS 531 



postorbital part of head, five-sixths of interorbital width. I„teror},it.d 

 rough, with longitudinal striations; a shallow groove along its middle 

 Length ot pectoral equals depth at ventrals, or 2f in dorsal base." 

 Length ot veiitrals contained 2| times in space between their base and 

 front ot anal Ventrals inserted midway between caudal base and 

 po,stenor third of eye. Anal a little in advance of front of dorsal 

 Its base shorter than that of dorsal by the diameter of eve. Outline 

 of dorsal and anal deeply concave behind anterior ravs Anterior 

 rays ot dorsal equal in length to those of anal. Base of last anal rav 

 twice the diameter of eye distant from base of auxiliarv caudal rays 

 Last dorsal ray three-fourths eye from auxiliary caudal ravs Pos- 

 terior dorsal rays not much elongated; the longest scarcely as long as 

 eye; he third ray from the last reaches base of last rav in reclined 

 fin; the last ray reaches three-fifths the distance between ks base and 

 base ot auxiliary caudal rays. Caudal not deeply forked, the lower 

 obe much the longer. Lateral line on caudal peduncle slightl v raised 

 to a keel which is black. * 



Color in spirits; Greenish on back, silvery below; jaws and teeth 

 green; pectoral dusky toward tips of rays; axil black; tips of front 

 dorsal rays dusky, and dorsal black behind; tip of middle anal rays 

 black; dorsal dusky. "^ 



Here described from a specimen 78 cm. in length from Tsuruga 

 Another specimen is in the collection from Yokohama. 

 I There is no other record of the species from Japan, 'it is apparently 

 Ifrequently taken in the East Indies. 

 {OoroniandeUcus, from Coromandel.) 



I 4. TYLOSURUS ANASTOMELLA (Cuvier and Valenciennes). 



DATSU. 



1 



-BeZone aHf«tomf??a Cuvier and Valenciennes, Hist. Poiss., XVIII 1846 p 446- 

 Chma—GtiNTHER, Cat. Fish., VI, 1866, p. 249; Shanghai, Japan, India.- 

 IsHiKAWA, Prel. Cat., 1897, p. 18; Tokyo.-SxEiNDACHNER and Doderlein, 

 l^ische Japans, IV, 1887, p. 37; Tokyo. 



Tylosurm anasfomeUa Jordan and Snyder, Check List Fishes, Japan, 1901 p 61- 

 1 okohama. ' ^ " ' 



Beloniadconia Richardson, Ichth. China, 1846, p. 264; Canton, on a drawing 

 by Eeeves. * 



Depth at ventral fins fi in postorbital part of head, which is H in" 

 .ength from opercle to base of caudal. Dorsal, 18; anal, 23. 



Body compressed, the width a little less than half depth. Tips of 

 ^aws broken in all our specimens; upper jaw to eve at least 3f from 

 fame point to base of caudal. Eye 3f in postorbital part of head, 

 feven-eighths of interorbital width. Interorbital with a wide, shallow 

 Ibaunel alpng its middle. Base of upper jaw not strengthened bv a 

 my ridge, but outline of head evenly and slightly concave from 



