JORDAN AND THOMPSON: FISHES OBTAINED IN JAPAN IN 1911. 241 



Family EQUULIDiE. 



110. Leiognathus rivulata (Schlegel). 

 Misaki, No. 6109a. 



111. Leiognathus argentea Lacepede. 

 {Equula nuchalis, Temminck & Schlegel). 

 Osaka, No. 6119a; Misaki, No. 6446a. 



Family MENID^. 



112. Mene maculata (Bloch & Schneider). 



Sagami Bay, Nos. 4101a-e (from Owston Collection). 



Family STROMATEOIDID^. 



113. Stromateoides candidus (Cuvier & Valenciennes). 



Family STROMATEID^. 



114. Psenopsis anomala (Temminck & Schlegel). 

 Osaka, No. 6238a; Shimonoseki, Nos. 6227a-c; Kobe. 



115. Labracoglossa argentiventris Peters. 



Misaki, No. 6438a, a common and pretty little fish. The relationship of the 

 genus is stiU uncertain. 



116. Ectenias brunneus gen. et sp. nov. (Plate XXVII, fig. 3). 

 Type No. 6453a; cotype No. 6454, Misaki. Sagami, No. 6006a. 



This new genus, Ectenias, is allied to Centrolophus, being distinguished by its 

 elongate, sub terete form of body. There is one dorsal fin, the anterior spines merging 

 into the soft rays; mouth moderate, jaws equal; teeth moderate, few-rowed, 

 shghtly enlarged anteriorly; palatines with small teeth; gill-rakers short; teeth in 

 the oesophagus; scales minute; lateral line complete; dorsal with about fifty-eight 

 rays, anal with twenty-five; ventrals well developed. 



We give below a description of the type of the species, Ectenias brunneus, No. 

 6453a, C. M. Cat. of Fishes, a specimen from Misaki one hundred millimeters long. 

 Others, cotypes from the same locality, are smaller. 



Head 4 in body-length; depth 5.8; eye 3.125 in head; snout 3.5; maxillary 2.25; 

 interorbital space 3.5; depth of caudal peduncle 5; D. 58; A. 25; P. 20; V. 1.5. 

 Scales with about two hundred and fifty pores in lateral line. 



Head at nape as deep as body, which tapers evenly to caudal peduncle; latter 

 slender, slightly compressed; eye large; maxillary reaching vertical from center of 

 eye; suborbital space less than breadth of maxillary at tip; interorbital space 

 broad, its sides parallel, projecting over anterior edge of eye; nostrils subequal, 



