130 NEW YORK STATE MUSEUM 



• Subgenus phoxinus Rafinesque 

 73 Leuciscus margarita (Cope) 



Pearl Minnow 



Clinostomns margarita Cope, Cypr. Penn. 377, pi. 13, fig. 1, 1866. 

 Sqnalius marffciritiis Jokdan & Gilbert, Bull. 16, U. S. Nat. Miis. 235, 



1883. 

 Pho.rinus margaritus Bean, Fishes Penna. 53, 1893. 

 Leuciscus margarita Gunther, Cat. Fish. Brit. Mus. VII, 246, 1868; Jordan 



& Ea-ermann, Bull. 47, U. S. Nat. Mus. 241, 1896. 



Muzzle obtuse, mouth oblique, scarcely attaining the line of 

 the anterior margin of the orbit; head four times in body to 

 base of caudal fin, equal to greatest depth; eye three fourths its 

 diameter from end of muzzle, and equal to postero-inferior mar- 

 gin of operculum. Scales less exposed on anterior than on 

 posterior regions: 11-58-8 to 9. The lateral line is discon- 

 tinued 5 to 8 scales anterior to the caudal fin. Pharyngeal teeth 

 slender, 2, 5-4, 2. Dorsal originating behind origin of ven- 

 trals, i, 8; A. I, 8; V. 8, extending three fourths from its origin 

 to the anus; P. 17, reaching two thirds way to ventrals. 



Lines 



From origin of caudal to first dorsal ray 12 



From first dorsal ray to hind margin of orbit 9.5 



From first dorsal ray to end of muzzle ' 13.5 



From first anal ray to caudal base 8 



From end of muzzle to base of ventrals 12 



Total length, 2 inches 6 lines. 



Coloration above light olive, without dorsal line, but darker 

 shade at origin of dorsal fin with a minute slaty dusting and a 

 few lateral speckles of the same. Sides to halfway above the 

 lateral line and opercula plumbeous silvery; below bright crim- 

 son (in midsummer) to lower margins of pectoral and ventral 

 fins; median line below straw-colored. Muzzle blackish; fins un- 

 spotted. (After Cope) 



The pearl minnow was supposed to be limited to the Susque- 

 hanna river and its tributaries, but it is now known southward 

 to the James and the head waters of the Kanawha, and lias 



