228 MEMOIRS OF THE CARNEGIE MUSEUM. 



branched ray extending beyond base of last; second ray somewhat spine-like and 

 strong, its length two-thirds that of succeeding ray; first spine three-fifths of length 

 of second; outline of fin straight, last ray nearly as long as third; anal similar, save 

 that its spine is three-quarters of the length of the succeeding ray; its insertion 

 under fourth branched ray of dorsal; its third ray, when supine, extending beyond 

 base of its last ray; pectorals reaching beyond base of ventrals, their length 1.2 in 

 head; ventrals reaching insertion of anal, length slightly less than that of pectorals. 



Lateral line continued horizontally, only through first four scales, its lateral 

 series of scales then dropping sharply towards ventral line of body. 



Color-pattern that of Acheilognathus, a lateral blue-black stripe, widest pos- 

 teriorly where it nearly equals diameter of pupil, and ending abruptly; anteriorly 

 the stripe narrows, vanishing two or three scales in front of dorsal; an indefinite 

 shoulder-spot just behind angle of gill-opening, succeeded by a silvery area two 

 scales wide, another indefinite spot behind this, the whole slightly larger than eye; 

 line of back very dark; belly pigmented, as is usual in males of this group; dorsal 

 anteriorly margined with white, posteriorly tipped with black; remainder of fin 

 dusky, with two faint narrow longitudinal stripes about the middle ; anal similar, but 

 with white margin continued posteriorly proximal to black tips of rays; stripes on 

 fin very indistinct, pectorals and ventrals without pattern, latter dark, as is the belly. 



This species may be easily distinguished by the broad lateral band of blue- 

 black and the white margined anal, besides by the depth and the pharyngeal teeth. 

 57. Acanthorhodeus sciosemus sp. nov. (Plate XXVI, fig. 1). 



Described from six females and three males, the longest 4 cm. in total length, 

 from Chikugo, collected by Jordan and Snyder in 1900. The type is in the Stanford 

 University Collection. 



Head 3.75 in body-length; depth 2.5; eye 2.75 in head; snout 4.25; length of 

 caudal peduncle from last anal rays 1.4 in head, its depth 2; dorsal height 1.33; 

 anal height 1.4. Dorsal rays II, 10; anal rays II, 9 or 10; scales in lateral series 32, 

 in transverse series, between insertions of vertical fins, 11; pharyngeal teeth 5-5. 



Snout not overhanging premaxillaries, its tip level with center of eye; maxillaries 

 extending to below anterior margin of eye; no barbel present; mouth but slightly 

 oblique ; tuberculated areas on snout of males not prominent in any specimens exam- 

 ined, nor are patches present before eyes; pharyngeal teeth hooked, with narrow 

 grinding surface, without serrations or plicate sides; gill-rakers short, 2-|-4. 



Dorsal inserted nearer base of caudal than tip of snout b.y length of latter; 

 first branched ray extending beyond base of last, when supine; second ray spine-like 

 with flexible tip, as long as succeeding ray; first spine half length of second; last ray 



