JORDAN AND THOMPSON: FISHES OBTAINED IN JAPAN IN 1911. 241 
Family EQUULIDA. 
110. Leiognathus rivulata (Schlegel). 
Misaki, No. 6109a. 
111. Leiognathus argentea Lacépéde. 
(Equula nuchalis, Temminck & Schlegel). 
Osaka, No. 6119a; Misaki, No. 6446a. 
Family MENID/. 
112. Mene maculata (Bloch & Schneider). 
Sagami Bay, Nos. 4101la-e (from Owston Collection). 
Family STROMATEOIDID. 
113. Stromateoides candidus (Cuvier & Valenciennes). 
Osaka. 
Family STROMATEID 44. 
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 still uncertain. 
116. Ectenias brunneus gen. et sp. nov. (Plate XX VII, 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, subterete form of body. There is one dorsal fin, the anterior spines merging 
into the soft rays; mouth moderate, jaws equal; teeth moderate, few-rowed, 
slightly enlarged anteriorly; palatines with small teeth; gill-rakers short; teeth in 
the cesophagus; 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 2.2 
interorbital space 3.5; depth of caudal peduncle 5; D. 58; A. 25; P. 20; V. 1. 
Seales 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, 
5; 
5. 
