818 PROCEEDINGS OF THE NATIONAL MUSEUM. 



3. ACHEILOGNATHUS LIMBATA (Schlegel). 

 ZAKO: TAN AGO. 



CapoUa Umhata Sciilegei., Fauna Japonica, Poiss, 184G, p. 203, i)l. c, lig. 5; 



Streams near Nagasaki. 

 Arliilogiialhux I'niihatm Guntiiek, Cat. Fish., VII, 1868, p. 277; Nagasaki, from 



one of Schlegel's types. 

 Arhc'iln(/)int}ins inter medium Jokd.\n and Snyder, Proc. U. S. Nat. Mas., XXIII, 



1901, p. ;UI; Lake Biwa (not of Schlegel). 



IleucU; depth 3; D. Ill, 10; A. Ill, 10; P. 15; V. 8; .sc-ale.s 3»; in lateral 

 line; (i scales ])etween orig-in of dorsal and lateral line, and i) scales be- 

 tween the latter and middle of bell}-; i)luiryngeal teeth 5 — 5; width of 

 head H in its length; snout 4 in head; eye 3; interor])ital space 2f; 

 pectoral i| ; ventral 1^. 



Body rather clong-ate, moderately deep, and compressed. Head 

 short, and compressed; snout short, rather ])lunt and not produced; 

 eye rather large, anterior; mouth small, obliciue, and reaching ])elow 

 the nostril; maxillary protractile, and furnished with a small barbel 

 which is s(ddom more than half the eye in length; pharyngeal teeth 

 with a narrow grinding surface, smooth, and without serrations; nos- 

 trils close together, and near the upper part of the eye; iiiterorbital 

 space rather I) road, slightly elevated and flattened medianlv. Gill- 

 openings rather large; gill rakers short, weak, and few in num])er; 

 pseudobranchial present. Intestine with numerous convolutions. 

 Peritoneum black. 



Scales large, c3'cloid, and narrowly imbricated in the costal region; 

 no pectoral flap; a short, scaly, ventral flap. 



Origin of dorsal about midway, or a trifle in advance, in the length 

 of the itod}^ without caudal, the anterior rays the highest, the base of 

 the tin about 4^ in body without caudal, the third rudimentar}' ray as 

 long as first developed ray and rather strong, and the margin of the 

 fln straight; origin of anal l)elow the middle, or a trifle posterior, base 

 of dorsal much nearer the origin of ventral than base of last anal ray, 

 similar to dorsal in shape, with the anterior rays the highest, the base 

 of the fln less than head without snout, and the margin of the fln 

 nearl}' straight; caudal very deeph" emarginate, the lobes well devel- 

 oped and pointed; pectorals ecjual the head from anterior nostril to 

 edge of opercle, and reach to within a short distance of the origin of 

 the ventrals; ventrals slightly in front of the origin of the dorsaf, and 

 reaching l)eyond thv origin of the anal. Caudal peduncle rathei- hjng, 

 its least depth 2^ in head. Lateral lines nearly straight, and continu- 

 ous along the sides to the base of caudal. 



Color ill alcohol, dark ])rown above, tinged with olivaceous, and 

 })elow paler, except the abdomen, which is black; a narrow blackish 

 streak beginning on the sides in front a))ove tiie lateral line, and is 

 continued to within a short distanci; of the base of the caudal, ])ecom- 



