1132 Bulletin 4j, United States Mational Museum. 



LEPiBEMA(Ae7ri's, scale; /S^/xa, a staircase, from the scales at base of dorsal) : 

 a. Teeth on base of tongue in a single patch; body rather deep and compressed, the depth 

 more than J-., the lengtli ; back arched. 

 6. Color whitish with several narrow dusky lateral stripes following the rows of scales; 

 second anal spine about 3 in head. CHETSOPS, 1529. 



Roccus : 



aa. Teeth on base of tongue in 2 parallel jiatches; body rather elongate, the depth less than 

 y^ the length; back not arched. 

 66. Color brassy or greenish, sides with 7 or 8 continuous dark stripes; second anal spine 

 5 in head. i.ineatus, 1530. 



Subgenus LEPIBEMA, Rafinesque. 



1529. ROCCUS CHRTSOPS (Rafinesque). 

 (White Bass ; White Lake Bass.) 



Head %\ ; depth 2\ ; eye 5 in head ; snout 4^. D. IX-1, 14 ; A. Ill, 11 or 

 12 ; scales 10-55 to 65-15, 53 to 61 pores. Body rather deep and com- 

 pressed, the depth more than \ the length ; back considerably arched ; 

 head subcouical, slightly depressed at the nape ; mouth moderate, nearly 

 horizontal, the lower jaw little projecting; eye large, nearly as long as 

 snout; maxillary reaching middle of pupil, 2f in head; teeth on base of 

 tongue in a single patch, a patch also on each side of tongue ; margin of 

 subopercle with a deep notch ; head scaled to between nostrils ; preoper- 

 cular serrae feeble, strongest at the angle ; gill rakers rather long and 

 slender, x-|-14, as long as gill fringes; longest dorsal spine 2 in head; 

 anal spines graduated ; second anal spine 3 ; middle caudal rays If in 

 outer. Color silvery, tinged with golden below ; sides with narrow 

 dusky lines, about 5 above the lateral line, 1 along it, and a variable 

 number below it, these sometimes more or less interrupted or transposed. 

 Length 15 inches. Great Lake region, upper Mississippi and Ohio valleys, 

 south to Washita Eiver ; not found east of the Alleghanies nor in salt 

 water; rare in the Ohio Valley: generally abundant in the Great Lakes. 

 It frequents deep or still waters, seldom ascending small streams, (xpvabc, 

 gold; uip, eye.) 



Perca ehrysojis, Rafinesque, Ichthyologia Ohiensis, 22, 1820, Falls of the Ohio. 



Labrax multilinealus, Cuvier & Valenciennes, Hist. Nat. des Poissons, iii, 488, 1830, Wabash 



River; Gunther, Cat., i, 67, 1859. 

 Labrtu; jiota^iis (Hamilton Smith) Richardson, Fauna Boreali-Americana, in, 8, 183f;, Lower 



St. Lawrence River; GtiNTHER, Cat., i, 67, 1859. 

 Labrax albidm, De Kay, Nat. Hist. N. T.: Fishes, 13, pi. 51, fig. 165, 1842, Buffalo. 

 Labrax osculatii, Filippi, Rev. et. Mag. de Zoologie, 2d series, v, 164, 1853, Canada; GOnther, 



Cat., I, 65. 

 lioccus ch-ysops, GiLL, Ichth. Rep. Captain Simpson's Surv. Great Basin Utah, 391, pi. 1, figs. 1-7, 



1876; Jordan & Eigenmann, I. c, 422, 1890. 

 Morone muUilitieata, Boulenger, Cat., i, 128. 



Subgenus ROCCUS. 



1530. ROCCCS LINEATIIS (Bloch). 



(Striped Bass ; Rockfisii , Rock.) 



Head 3J to 3i ; depth 3i to 4, varying considerably with age, the young 

 being more slender. D. IX-1, 12; A. Ill, 11; scales 8-67-11. Body rather 



