60 Synopsis of the Fresh Water Fishes, 



species, and by the red or yellow blotches above and beneath 

 the black caudal spot. It associates in large numbers, and is 

 very familiar, approaching the bather, and nibbling at his legs 

 and body. 



Subgenus. 



Hemigkammus, Gill. 

 Lateral line abruptly discontinued at the middle of the body. 



PcBciliirichthys iinilineatiis, Gill. 



The height of the body, before the dorsal, is contained three 

 times and a fifth in the total length from the snout to the end 

 of the lobes of the caudal. The length of the head bears to 

 that length the proportion of three to thirteen. The eyes are 

 very large, and only contained three and two-seventh times in 

 the head's length ; the distance between them is less than the 

 diameter, and a space equal to only four sevenths of the 

 diameter separates them from the snout. The dorsal com- 

 mences at two-fifths of the length of the body from the snout. 

 Twelve rows of scales cross the highest point of the body. 



D. 11. A. 27. C. I. 8. 8. I. P. 12. Y. 6. 



The chief color of the body is a light greenish yellow ; a 

 rather indistinct silvery stripe runs along the middle. The 

 pectoral, ventral, and caudal fins are white ; the dorsal has the 

 upper part covered by a large black spot, and the lower half 

 and margin white ; a narrow band of black obliquely crosses 

 the four or five anterior rays of the anal, commencing at the 

 top of the first ray ; the remainder of the fin is white. There 

 are golden blotches on the surface of the operculum. 



The size of this species is the same as that of Pcecilurichthys 

 pulcher. Its subgeneric character will distinguish it from all 

 known species. The black line on the anal, and the unspotted 



