The Fresh Water Fishes of the Island of Formosa. 183 



eyes small and covered with thin skin, anterior in position; snout 

 broad, obtuse, and projecting; teeth in jaws only, in broad villiform 

 bands; eight barbels, the median mental barbels widely separated. 

 Dorsal fin placed anteriorly; dorsal and pectoral spines smooth, 

 sharp, and imbedded in skin; adipose fin long and low, joined to the 

 caudal as in Notrius; ventral fins small, not reaching the anal, which 

 has fifteen rays (Jordan & Fowler). 



Distribution: Formosa; China; Corea; Japan. 



Synopsis of the Formosan Species. 

 a. Dorsal fin with seven soft rays; anal with twelve; upper jaw slightly longer 



than the lower nanto'ensis. 



aa. Dorsal fin with five soft rays; anal with fifteen; jaws equal anteriorly. 



formosaniis. 



8. Liobagrus nantoensis sp. nov. (Plate XLVIII, Fig. 3). 



Head 4.33 in length; depth 6; D. I, 6; A. 12; P. I, 7; V. 6; width of 

 head once in its length; snout three times in head; interorbital space 

 2.5; pectoral 1.25; ventral 1.8. 



Body compressed, dorsal profile abruptly inclined anteriorly at the 

 base of dorsal fin; head large, round, flattened, with a median shallow 

 groove, both sides of which are slightly swollen; interorbital space 

 depressed; snout very short, anterior margin broadly rounded, pro- 

 jecting beyond lower jaw; mouth anterior, transverse, with thick 

 fleshy lips; upper jaw with a band of villiform teeth, similar bands on 

 the lower jaw, crescent-shaped, narrower, but longer than that of 

 upper jaw; no teeth on palatine and vomer; eight barbels, four on snout, 

 others on mentum, all barbels thick at the base, nasal barbel nearly 

 as long as inner mental, maxillary barbels slightly shorter than outer 

 mentals, scarcely reaching the base of pectoral; nostrils superior, 

 separated, anterior nostril in a short tube, the posterior in contact 

 with root of nasal barbel; eyes very small, superior, imbedded in skin; 

 gill-openings rather large; gill-membranes entirely separated. 



Dorsal fin small, its spine nearly half as high as the fin, hidden 

 beneath skin; adipose dorsal low and long, opposite to the anal; pec- 

 toral armed with a sharp smooth spine, which is hidden beneath the 

 skin, tip of the fin reaching beyond the middle of dorsal; ventral fin 

 entirely behind the dorsal, reaching beyond anus; the anal much 

 shorter than adipose dorsal; caudal fin rather long, its tip rounded; 

 depth of caudal peduncle uniform. Body smooth; lateral line indis- 

 tinct. Color in formalin brownish gray, fins somewhat paler. 



