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 seales 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 X XVI, fig. 1). 
Described from six females and three males, the longest 4 em. 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 by length of latter; 
first branched ray extending beyond base of last, when supine; second ray spine-like 
with flexible tip, as long as sueceeding ray; first spine half length of second; last ray 
