The Fresh Water Fishes of the Island of Formosa. 181 



Depth of body 6.42 to 7.14; maxillary barbels long, reaching the tip of oper- 

 culum; adipose dorsal shorter than the anal; origin of the dorsal in advance of 



the tip of pectoral taiwanensis. 



Depth of body 4.5 to 5.33; maxillary barbel short, reaching only to the base of 

 the pectoral; adipose dorsal longer than the anal; origin of the dorsal above the 

 tip of pectoral hrevianalis. 



Measurements of Pseudobagrus taiwanensis. 



7. Pseudobagrus adiposalis sp. nov. (Plate XLVIII, Fig. 2). 

 Sankakufu (Formosa). 



Head 4.28 in length; depth 7.16; D. I, 7; A. 19; P. I, 8; V. 6; width 

 of head 1.5 in its length; interorbital space three times in head; snout 

 2.8; width of mouth 2.5; pectoral 1.33; ventral 1.86; eye eight times in 

 head; three times in interorbital space. 



Body elongate, depth rather uniform, tail compressed; head 

 broad, triangular, depressed and smooth; snout flattened, obtusely 

 rounded anteriorly, projecting beyond the lower jaw; mouth inferior, 

 transverse, crescent-shaped; lips thick, more or less papillose; jaws 

 with broad bands of villiform teeth; eyes small, lateral and superior, 

 covered with thin skin; nostrils separated, the anterior tubular, in a 

 shallow pit behind the upper lip, the posterior in contact with the root 

 of the nasal barbel; eight barbels, four on the snout, the other four on 

 the mentum, the maxillary barbels the longest, reaching beyond the 

 posterior margin of orbit, the median mental barbels the shortest; 

 interorbital space broad, somewhat elevated; gill-openings large, 

 reaching upward beyond the base of pectoral; gill-membranes deeply 

 notched, entirely separated from each other; gill-rakers 3 + 10; 

 slender. 



Dorsal fin inserted on anterior third of the distance between tip of 

 snout and base of caudal, armed with a sharp spine; adipose dorsal 

 very long, inserted behind the base of ventral, reaching beyond the 

 posterior end of base of anal, its height gradually increasing posteriorly; 

 the pectoral with a strong spine which is strongly serrated behind; 



