132 PROCEEDINGS OF THE ACADEMY OF [April, 



the dorsal; dorsal outline weakly curved; proventral part rounded; 

 postventral part trenchant, with a sharp, soft, median keel; head 

 rather small, triangular; dorsal outline straight, slightly fallen from 

 the back; interorbital space broad, slightly arched; snout short, 

 truncated in front; mouth terminal, slightly oblique, maxillary 

 reaching a vertical through anterior border of nostril, lower jaw 

 more or less protruding beyond the upper; Hps thin; barbels none; 

 eye large, anterior; nostrils close together, in front of the eye abo-ve, 

 the anterior covered with a small flap; pharygneal teeth slender, 

 hooked; gill-rakers rather slender, long. Dorsal fin above the space 

 between ventrals and anal, inserted nearer base of caudal than tip 

 of snout, with no spine, rather high, anterior ray the longest; pec- 

 toral short, reaching three-fourths the distance to ventral; ventral 

 inserted in advance of the origin of dorsal, not reaching the vent; 

 anal elongate, outer margin incurved, inserted below the last divided 

 ray of the dorsal, anterior ray the longest; caudal peduncle depressed, 

 its depth 2.50 in head, caudal fin deeply forked, tip of each lobe 

 sharply pointed. Scales moderate, thin; lateral line broadly de- 

 curved, running along the lower half of the tail. Color in formalin 

 greenish gray above, lower parts of sides whitish, sides with a dark, 

 longitudinal band above the ntiddle; a dark narrow band along the 

 dorsal median line; a brownish round spot on occiput; all the fins 

 whitish, caudal somewhat dusky. Total length 88 mm. 



Type No. 49,952, A. N. S. P. One specimen from a small pond 

 near Manka, Taihoku, collected by Takeo Aoki in June, 1919. 



Also 2 paratypes, same data, which show: Head 3.81 to 3.93; 

 depth 3.81 to 3.93; fins as in type; head width 2; interorbital 

 3 to 3.25; snout 3.66; eye 3 to 3.25; scales 10—45 to 47—5; length 

 75 to 79 mm. 



The scale row of the present species distinctly differs from that of 

 Rashorinus takakii. 



37. Chanodichthys macrops Giinther. 



One from Heirinbi, Giran. 



38. Cultriculus akoensis new species. Plate III, figiire 4. 



Head 4.39 in length; depth 5; D. ii.7; A 3.12; P. 14, V. 9; 

 width of head 2.25 in its length; interorbital space 3.27 in head; 

 snout 3.40; eye 3.40; pectoral slightly longer than head; ventral 

 1.38; 45 scales in the lateral line, 9 scales in an obhque series between 

 origin of dorsal and lateral line, 3 scales between the latter and the 

 middle of belly; one scale between lateral line and the root of ventral; 



