NO. 1787. SCI^NOID FISHES OF JAPAN— JORDAN AND THOMPSON. 255 



tinct flexible serrations, more widely set and somewhat larger on 

 rounded angle, less prominent on lower edge than on posterior margin; 

 the latter sloping backward, at slight angle from vertical. Opercle 

 ending in two large flat points of about equal size. 



Dorsal spines weak, flexible; longest third and fourth, 2| in head 

 and \^ times length of dorsal rays; base of spinous dorsal slightly 

 more than half that of soft, which is contained thrice in length of 

 body to base of caudal fin. Anal spines very weak, first buried 

 beneath skin, second equal to longitudinal diameter of eye in length; 

 longest anal rays 2^ in head, anal base 4^ in that of soft dorsal, its 

 insertion under thirteenth to fifteenth soft dorsal rays. Pectoral 

 somewhat longer than head without snout. Ventrals reaching over 

 half way to vent. Caudal rounded. 



Lateral line distinct, concurrent with base of dorsals to above anus, 

 where it follows body axis to tip of caudal; its tubes large, arbores- 

 cent, one or two branches on a side. 



Scales slightly ctenoid over whole body save on cheeks below eye; 

 absent on lips; buried on lower surface of mandible; a sheath-like 

 row along bases of soft dorsal and anal, which are not scaled. 



Color silvery on sides and cheeks, in spirits light brownish above 

 lateral line, colorless below, a large indefinite black, pigmented blotch 

 on operculum and a smaller one on inner side of axis of pectoral. 

 Fins all pale save dorsal margins which are somewhat darkened on 

 distal half, and bases of soft rays which are also dusky, leaving a 

 clear stripe midway up on second dorsal. 



We have numerous examples from Tokyo, Onomichi, Tsuruga, 

 Naoetsu in Echigo, Hiroshima, Kawatana, and Nagasaki. These 

 agree well with the description given by Steindachner and Doderlein 

 in "Beitrage zur Kenntniss der Fische Japans," and with the account 

 of Corvina sina given by Schlegel in the Fauna Japonica. 



The species is one of the commonest food fishes of the sandy shores 

 of southern Japan, where it is known as Ishimochi, or stone-possessor, 

 from the ear bones. 



(Named for Professor Schlegel.) 



The species from Port Arthur recorded as Corvula argentata by 

 Jordan and Starks ® is not identical with this Japanese species. 



It may be described as follows : 



5b. SCI.ffiNA MANCHURICA Jordan and Thompson, new species. 



Description of eight specimens from Port Arthur, type 285 mm. in 

 total length: Head 3^ in length without caudal, 4 with caudal; 

 depth 3 1 in length without caudal, 4^- with caudal; maxillary 2 in 

 head; eye 5^; interorbital space above center of eyes 3; preorbital- 

 width between eyes and maxillaries 9^ or 10; snout 4; dorsal IX — I, 



aProc. U. S. Nat. Mus., vol. 31, 1906, p. 518. 



