NOMENCLATURE AND MORPHOLOGY. 129 



ing from the orbit; the fins are uiii-color except the second dorsal, 

 which exhibits two longitudinal bars upon its base; the upper 

 ones are greenish olive, the lower ones are yellowish olive." — 

 (GiKARD, U. S. Mex. Bound. Surv. II, 3, 1859.) 



Grlstes nigricans Herbert, 1859. — "In color, this fish is 

 of a dusky bluish black, sometimes with bronze reflections, the 

 under parts bluish white, the cheeks and gill-covers nacreous, of 

 a bluish color. 



"The body is compressed; back arched and gibbous; profile 

 descending obliquely to the rostrum, Avhich is moderately pro- 

 longed; scales large, truncated; scales on the operculum large; 

 a single series on the suboperculum, much smaller on the pre- 

 operculum, ascending high up on the membrane of the .^oft 

 dorsal and caudal fins; eyes large; nostrils double ; operculum 

 pointed, with a loose membrane; the lower jaw is somewhat long- 

 est ; the jaws are smooth and scaleless ; both jaws are armed with 

 a broad patch of minute conic acute reserved teeth ; an oblong 

 patch of rasp-like teeth on the vomer, and a band of the same 

 kind on the palatines; branchial arches minutely toothed; 

 pharyngeal teeth in rounded patches. The dorsal fin is com- 

 posed of 9 stout spines; the second dorsal of 1 spine and 14 soft 

 rays ; the pectorals have 18 soft rays, the ventrals 1 spine 

 and 5 soft rays, the anal 3 spines and 12 soft rays, and the 

 caudal 16 soft rays." — (Herbert, Fish and Fishing, 195, 1859.) 

 — (I think this description more ai^plicable to the large-mouthed 

 Black Bass than the small-mouthed form, although Herbert 

 copied it from DeKay's C. fasciatiis; but I think he considered 

 the latter the same as H. nigricans C. & V., on the strength of 

 Professor Agassiz's estimate of, and statement concerning, the 

 same species, viz: "Dr. DeKay describes it l^Hitro nigricans'] as 

 Centrarchus Jasciaiiis, although he copies also Cuvier's description 

 and figure of Huro nigricans, but without perceiving their iden- 

 tity."* It is also evident from the context of Herbert's descrip- 



« " Lake Superior," p. 287, 1850. 



