JORDAN AND THOMPSON: FISHES OBTAINED IN JAPAN IN 1911. 227 
gg. Depth less, 3.33 to 2.77. 
h. Barbels slightly over half diameter of eye; lateral stripe indistinct, or lacking. 
1. D. with nine developed rays; A. 10; barbel 1.5 insnout................ intermedius. 
Tima Ae Om DAL DIC UAl GO;SMOUG. te aaceaels emne cle ciate ei meeieetaeme emi ALAN CEOLUTALS: 
hh. Barbels much less than half of eye; lateral stripe indistinct, as wide as pupil of eye... morioke. 
Norte on Metzia Jordan & Thompson, A New Genus or Cyprinide, ALLIED TO 
Acheilognathus. 
The species described by Jordan and Evermann (Proc. U. 8. N. Mus., Vol. 
XXV, 1902, p. 323), as Acheilognathus mesembrinus, may be taken as the type of a 
new genus, Metzia, characterized by three rows of pharyngeal teeth 1-3-5 on left 
side, 1-3-4 on right; lateral line complete, decurved; anal inserted behind last dorsal 
ray; maxillary long, extending beyond anterior border of eye; body deep, com- 
pressed; peritoneum black; intestine elongate; no barbel. Characters otherwise 
as in Acheilognathus. Named for Charles William Metz, assistant in Stanford 
University, and associated with the writers in the identification of the fishes of the 
collection upon which we are now reporting. 
56. Acanthorhodeus atremius sp. nov. (Plate X XV, fig. 3). 
The genus Acanthorhodeus Bleeker is separated from Rhodeus by the develop- 
ment of one of the rudimentary rays of the dorsal as a distinct spine. The Chinese 
species of the genus are large fishes, sharply separable from Rhodeus, but the 
Japanese species of Acanthorhodeus are scarcely distinct from the other genus. 
This may make the mergence of the two groups necessary. 
Described from two specimens collected by Jordan & Snyder in the Chikugo 
River at Kurume in 1900; both males,4.5 and 5 em. in total length; type in the 
Stanford University Collection: cotype in the Carnegie Museum. 
Head 4 in body-length; depth 2.4; eye 2.66 in head; snout 4; length of caudal 
peduncle from last anal rays 1.25 in head, its depth 2; dorsal height 1.25; dorsal 
base 1.125; anal height 1.5, its base 1.2; D. rays II, 10; A. H, 9 or 10; pharyngeal 
teeth 5-5; scales in lateral series, 32, in transverse series between insertions of 
vertical fins 11, between occiput and dorsal 16. 
Snout not overhanging premaxillaries, its tip level with lower half of pupil; 
maxillaries not quite reaching anterior border of orbit; mouth not very oblique; 
male with tubercular prominences on snout widely separated and protuberant; a 
small tuberculated area above and between eye and nostril; no barbels present; 
pharyngeal teeth hooked, with narrow grinding surface oc sasionally plicate on the 
lower side as in Acheilognathus rhombeus; gill-rakers short, 3+-6. 
Dorsal inserted midway between snout and base of caudal, its third, or first 
