FI!« HES — CYPEINIDAE — MONTANA PULCHELLA. 



275 



is maculated with blackish along the peduncle of the tail. The dorsal and caudal are greyish 

 yellow ; the rest of the fins yellowish. 



List of specimens. 



4. MONTANA LAETABILIS, G r d . 



Spec. Char. — Body elongated, sub-fusiform. Head contained four times and a half in the total length. Snout sub-conical ; 

 jaws equal. Posterior extremity of maxillar bone extending to a vertical line drawn in front of the orbit. Eye large and 

 circular ; its diameter entering a little over three times in the length of the side of the head. Anterior margin of dorsal fin 

 nearer the insertion of the caudal than the ti]i of the snout. Pectorals and ventrals well developed. Reddish brown above ; 

 sides silvery ; beneath yellowish. 



Sjs.—Moniana laelabilis, Grd. in Proc. Acad. Nat. Sc. Philad. VIII, 1856, 200. 



The body is elongated, sub-fusiform in profile, the peduncle of the tail slender. The head is 

 well developed, and contained four times and a half in the total length, which measures about 

 two inches. The greatest depth is equal to the length of the head. The fins are quite 

 conspicuously developed ; the dorsal is much higher, and the anal much deeper, than long ; 

 the anterior margin of the anal is nearer the isthmus than the fork of the caudal. The caudal 

 itself being but moderately furcated, and its posterior margin crescent-shaped. The origin of 

 the ventrals is nearer the extremity of the snout than the insertion of the caudal ; their tips 

 overlapping the vent and reaching the anterior margin of the anal. The pectorals are slender 

 and lanceolated ; their tips extending to the insertion of the ventrals. The following is the 

 formula of the fins : 



D 2, 8 4- 1 ; A 2, 9 -f 1 ; C 8, 1, 9, 8, 1, 9 ; V 1, 8 ; P 13. 



The scales are of moderate development and rather deciduous ; the lateral line being, as usual, 

 deflexed upon the middle of the abdomen, and nearer the insertion of the ventrals than the 

 base of the dorsal. 



The color of the upper region is reddish brown, the abdomen being yellowish white, whilst 

 the middle of the sides reflect a silvery tint. The fins are yellowish. 



5. MONTANA PULCHELLA, Grd. 

 Plate LVTTT, Figs. 11—15. 



Spec Char.— Body rather short and deep. Head constituting the fifth of the whole length. Snout suh-conical ; upper jaw 

 overlapping slightly the lower one. Posterior extremity of the maxillary extending to a vertical line drawn behind the nostrils. 

 Eye moderate sized and circular ; its diameter entering three times and a half, or a little more, in the length of the side of the 

 head. Anterior margin of dorsal fin nearer tue insertion of the caudal than the extremity of the snout. Ventrals and pectorals 

 of moderate development. Reddish brown above, silvery upon the sides, and brownish yellow beneath. Fins unicolor. 

 SYU.—Moniana pukhdla, Grd. in Proc. Acad. Nat. Sc. Philad. VIII, 1856, 200. 



