JORDAN AND METZ: FISHES KNOWN FROM THE WATERS OF KOREA 19 



65. Acanthorhodeus asmussi Berg. (Plate II, fig. 1.) 

 Jeijo. (Korean name "Nazegi.") 



A fine large specimen of this handsome genus (No. 4571) obtained at Heijo 

 we refer with some doubt to Acanthorhodeus asmussi (DybowskjO (Verh. ZooL- 

 Bot. Ges., Wien, XXII, 1872, p. 212, Chanka Lake), as noted by Berg in his 

 Ichthyologia Amurensis. 



Description of two specimens 5.5 inches in total length, taken at Heijo, 

 Korea: D. II, 18; A. II, 13; depth 2.25; head 4.5; eye 3.5; snout 3.5; maxillary 

 4; interorbital 2.5; scales 7, 40, 6. Maxillary with very small rudimentary 

 barbel at tip; lateral line complete, decurved, slightly below median line; 

 pharyngeal teeth 5-5, sharp, curved and claw-like; body deep, compressed, 

 deepest through origin of dorsal; ventral outline evenly curved from snout to 

 caudal peduncle, less strongly arched than dorsal outline, which is very high; 

 head low; profile from tip of snout to nape almost straight; nape high; snout 

 blunt; eye large, elevated; mouth small, inferior; maxillary not reaching front 

 of eye; nostrils large, very closely approximated, and near eye. 



Scales very large on sides, smaller below; head naked; dorsal and anal with 

 sheath of large scales at base, none on membrane; dorsal fin long, not high, 

 inserted midway between tip of snout and base of caudal; first two rays spine- 

 Hke, second longest, 1.16 in head; dorsal rays gradually shortened to last which 

 is 2.33 to 3 in first; anal similar to dorsal, inserted under tenth dorsal ray; 

 second ray spine-like, as large as second dorsal ray; caudal emarginate; pec- 

 torals and ventrals small, the former not quite reaching the latter, which are 

 inserted slightly in advance of dorsal and reach almost to anal. 



Color dusky above, black on top of head and median line of back; paler 

 below, white on ventral parts; scales above level of pectoral dark-edged; a black 

 band from base of tail along middle of side, becoming narrower and elevated 

 anteriorly, ending in a distinct black blotch, slightly larger than pupil, a short 

 distance behind opercle; all fins pale; dorsal with traces of dusky longitudinal 

 bars; caudal with a few irregular jet-black spots. 



This species is somewhat similar to Acanthorhodeus guichenoti Bleeker, but 

 is more slender and has longer spine-like rays in dorsal and anal, and con- 

 spicuous black markings which are lacking in the latter. 



66. Rhodeus chosenicus sp. nov. (Plate II, fig. 2.) (Korean name "Sogusari.") 

 Type, No. 4567 and cotypes 4568a-b, the largest 1.84 in. Suigen, Korea. 

 D. 8; A. 8; scales 30; depth 4; head 3.8 in length; eye 3.66 in head; snout 



3.8; interorbital 2.8; pharyngeal teeth in one row 5-5, sharp, claw-like; gill- 



