IN THE ALLEGHENY REGION OF SOUTH-WESTERN VIRGINIA. 217 



AMBLOPLITES Raf. Agass. Emend. 



Am. Journ. Sci. Arts, xvii, 299. 



Dorsal radii xi ; short, longest, -66 depth the head at front of orbit ; 



cheek scaled; front convex; orbit 3-75 in length head; with brown 



longitudinal strife, . • • • • • • • ' • RUPESTRIS. 



Dorsal radii x; elongate, longest, equal depth of head at front margin 



orbit; cheek with very few scales; front concave, muzzle projecting; 



orbit large, 3 in head ; scales with brown shades at base, . . CAYIFRONS. 



AmBLOPLITES RUPESTRIS Raf. Gill. 

 Proc. Acad, 1860, 20, Boclianus rupestris Raf. Amer. Month. Mag. 1817, 120, 

 Cichla cenea Leseuer. Centrarc?m>> ceneus auct. 

 This species, so common everywhere in the West, is common in the Holston River ; 

 it occurs rarely in the Kanawha. 



AMBLOPLITES CAVIFRONS Cope. 



This new species has more the physiognomy of the true Cenirarchus than the last. 



The mouth is very oblique and large, the maxillary attaining the line behind the 



middle of tlie pupil ; the chin quite prominent ; the outline of the cranium concave, a 



little over three-fourths the diameter of the orbit. Dorsal line from cranium to dorsal 



ray straight ; bony dorsal as elongate as soft. General form elongate, deepest at middle 



- " ■'^vool 9-5 times in length (exclus. chin and caudal fin) caudal emarginate. Radu 



■ ' ■ " \ ""5. Scales of operculum much less than those of body; 

 those of cheek very tew, mill L^. ^ ^ ,, •• i ,. 



tnoseuiL, J , . of body 7— 38— 13. Mucous cavities large, a crest 



on middle of front. Silvery, below . -^ ,.,,,, ■ . , i- 



° • , J , I 'lOT head dusted with black points ; scales ot 



body with a narrow, vertical, dark shade . „ •, , / . 



. , 1 J 1 ^.11 nnprr'it base ; soft fins all dusky (except pec- 

 toralV soinous dorsal shaded, a small operc^ ' ^ , , \> o • e 



toral) , spmoub ^ular black spot. Total length 3 in. ; of 



T J 11.^ iiv.oc- frnm f"hin to urst dorsal ia\ i '^ 



head 11 lines , t^o^i ^nm , ^^_^_ ^.^^^ _ ^^^.^ ^^ ^^^^^^^ ^^,_^ ^.^^^^_ 



Length of caudal fin O'To i. 



^«Z,jtoi._The head waters of the Roanoke 



-"" > River, Montgomery Co., Va, 



HEMIOPLITES Q( 



r- „^ope gen, nov. 

 This cenus is intermediate between Ennea^ >■ ° , t , . 



ihis genus ,.canthus and Centmrchu-s. Its characters 



nvc^- nnerculum with two posterior points d , • , . 



;„:Zrfoara„alspiJ; caudal fin .ou„>.-a^der.., iap; pa,aU„e tee.h ; e.^h. 



Name, ^p and ^^'f ' '-'f;™"'"^^^^^ 

 do.a,, a,>d all beM,g of a type '"If t-"- _.^,_.,^^ ^^^ ^^.^ p^^„,,„^, 



Hemioplites si:^ 



, ,. hulans Cope sp. nov. 

 This soecies resembles, in coloration: . , t-, .7 



-^" ^ ,. . s 1 1 +v 1 and general proportions, the Enneacantliii-s 



,julta,n, (A»o,« Morr.s) .o clo«ly, 11.^^ ^^_^ ,t„, ;„„„, j,,, ,,„,, „,;„ „,,„,,. ,„ it 

 with some exceptions. 



