230 MEMOIRS OP THE CARNEGIE MUSEUM. 



Tip of snout level with center of eye; maxillary ending below nostril and before 

 eye; mouth but slightly oblique; male with tubercular prominences close together 

 on front of snout; a number of horny buds ranged along upper anterior rim of orbit, 

 and numerous others over dorsal surface of head in full breeding male; no barbels 

 present; gill-rakers (in cotypes of sarne size) 3 + 10; pharyngeal teeth smooth, some 

 hooked, others simple, sickle-shaped, grinding surface narrow, in some an indication 

 of transverse striation. 



Dorsal inserted midway between tip of snout and base of caudal, its first 

 branched ray not reaching base of last, when supine; second ray flexible and pointed 

 at tip, not spine-like, equal to length of succeeding ray; last ray more than three- 

 fourths the length of the second; anal similar, its last ray two-thirds the length of 

 third, its margin straight, not falcate nor emarginate; its insertion under third 

 branched ray of dorsal, tips of last dorsal and anal rays opposite, when supine; 

 pectorals not reaching bases of ventrals; latter barely reaching anal insertion; caudal 

 longer than head. Lateral line lacking, scales in corresponding series in no way 

 modified. Dorsal line of body very dark between occiput and insertion of dorsal; 

 lateral blue-black band rather faint, pointed acutely at both ends, one-fourth as 

 wide as pupil, beginning under fifth or sixth dorsal ray and continued to within four 

 scales of base of caudal; shoulder-spot behind angle of gill-opening indefinite, though 

 present, succeeded by a similar silvery area and another indefinite blotch, the whole 

 larger than eye; dorsal dusky, with two rows of white spots on rays, the proximal 

 row half-way up fin; no large spot present; anal similar, but much less distinctly 

 colored, narrowly edged with black; ventrals dusky (breeding male); pectorals and 

 caudal clear; ventral surface of belly pigmented. 



The females of this species seem to be slenderer, depth 2.5 in length; without 

 dark ventrals; anal with black margin; belly pigmented and with a fainter lateral 

 stripe and color-pattern on fins less plainly shown. 



A male specimen from Nagoya, resembling this species, has thirteen dorsal 

 rays and fourteen rays in the anal, with a lesser depth of body. Having but the 

 single specimen, we hesitate to regard it as a distinct species. The fins are plain 

 dusky, the lateral stripe as in the other specimens; the lateral line entirely lacking. 

 Two from Lake Biwa have a like number of fin-rays, and have a black spot ante- 

 riorly on the dorsal. As the normal number of anal rays in Rhodeus kurumeus is 

 but twelve, it is probable that these specimens represent at least one other species. 

 59. Tanakia oryzae (Jordan & Seale) gen. nov. 



An examination of the type of Rhodeus oryzce, at present in the collection 

 of Stanford University, shows the lateral line to be apparently lacking posteriorly. 



