834 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvr. 



line with a rather broad, brassy-brown longitudinal band, becoming 

 most distinct along- the caudal peduncle; a black spot l)ehind edge of 

 opercle; tins all more less tinged with brown, the dorsal with a trace 

 of a dark cross l)ar. Male deep steel blue in life, a dark lateral shade 

 interrupted on tail to form a caudal spot. Dorsal rosy tinted above. 

 Caudal and anal l)right yellow; pectoral and ventral with a scarlet 

 area, head pink below. 



Length, Tj'',; inches. 



This dcsciiption from an adidt male taken at Matsubara on Lake 

 Biwa. 



Fresh waters of southern Japan, very abundant, our many s])eci- 

 mens from ]Vlatsubara on Lake Biwa, the Yodo River at Osaka in 

 Settsu, the Chikugo River at Kurume in Chikugo, Lake Yogo nea)- 

 Nagoya, Funayado in Kiusiu, Tsuchiura, and Tokyo. 



The young of this species differs in color from the adult, as the 

 markings are much more distinct. The dorsal tin is pale, like the ven- 

 trals or anal, and is crossed by a jet black bar. The lateral band is 

 also ver}-^ distinct and generally results in a black blotch at the base of 

 the caudal. As they grow older these markings become more indis- 

 tinct. During the l)reeding season the snout of the male })ecomes 

 covered with horny tubercles like those found in certain species of 

 H3'bopsis, Notropis, etc. 



The following notes are given in a '"Preliminar}' Note on the Fishes 

 of Lake Biwa:'*" 



Young with yellowisli ocher above, the dorsum bhiisli tinted; scales of >slvy-l)lne in 

 front of dorsal; irregular sepia-brown markings, forming a straight line al(jng lateral 

 line, below which the ground color of the body fades away into a pale l)lue; sepia- 

 brown l)lotches along the back; head with sepia-brown markings on upper jaw, inter- 

 orbital space, and neck. Pupil, indigo-black, surroundejd by sky-blue; tins yellowish 

 ocher, the ends of dorsal, ventral, anal, and middle of caudal lighter; a row of elon- 

 gated black streaks on upper third of dorsal l)etween fin-rays. 



Larger si)ecimens brown above and on caudal; sides of head bluish, passing gradu- 

 ally to light crimson toward the ventral side; lips pale blue; pupil black with a 

 crimson ring; dorsal third of body darker brown with traces of indigo; dorsal two- 

 thirds of body covered with sepia-colored scales; dorsal, i)ectoral, ventral, and anal 

 light brown with indigo on anterior parts of dorsal and ventral; ventrals and anal 

 edged with liglit indigo; basal third of caudal with longitudinal streaks of brown. 



Upper half of body deep indigo-blue, with scattered, darker-colored scales; below 

 yellowish, quite light on ventrum, and with scattered golden yellow scales; ground 

 color of head reddish yellow, the dorsal portion dirty green; eye deep indigo with 

 crimson and indigo streaks around; dorsal and caudal greenish ocher; ventrals and 

 anal white, with yellow stripes. 



{raricgutus, varied. ) 



«Zool. Mag., VII (Tokyo), Aug., 1895, pp. 125-127, by Dr. Ishikawa. 



