20i cONTKir.rn. .n AMKUICAN ICHTHYOLOGY iv. 



berio. Lateral line short or nearly obsolete. (Dorsal fin not described.) 

 Anal basis short. Small h ,ic--,. differing from Miitniliis in the iu com- 

 plete condit ion o! the lateral line: possibly merely t he young of some 

 I/in*. before : in -. pore. 



3O7. P. domiianut. < '<; 



15o.lv rather stoat, nout convex. Muzzle ol>tuse. Mouth horizontal, 

 end of maxillan not quite reachm- orbit, Lye 4 in head. Lateral 

 line not developed as far as ihe ventral fins. Grayish; a broad dark 

 lateral band, spotted with darker; back ami top of head dark. Head 

 4.',: depth:.. D. 8; A. 7; scales 9-EJ6-6; teeth i'. l-l, 1. L. 2 inches. 



l-'ort Hall, Idaho. (Cope-) 

 ((.'.- >ol. Snrv. Mont. 1871 



87.-ERICIMIBA Cop.-. 



(Copr. l'i,.. . Arad. Nat. Sr,. I'hila. i I vpt; Kncijniba hitfi-,il,i 



Uody rather elongate, little compressed. Muzzle broad. Interoper- 

 cle, suborbital. and dentary boiics crossed by eonspieuous, externally 

 visible, imieous channels. Lips thin. No barbel. Teeth 1, 44, O r 

 without ^rindin^ surface, hooked, the ed-vs entire. Scales rather lar 

 Lateral line continuous. Dorsal lin above ventrals. Anal basis short. 

 Silvery li>he> <!' rather small size, known at once, from all other min- 

 nows by Ihe cavernous bones of the lower part of head. (t j //c', an inten- 

 HIVC particle; wnfy, a cavity: in allusion to the development of I he mu- 

 cous channels.) 



!JOS. E. t>iicrat:i < '<>i 



I'.ody fusiform, rather elon-ate, little compressed, the back not ele 

 valed. Head rather lon.u, somewhat depressed above, with broad and 

 prominent muz/.le. .Month rather small, horizontal, subinferior, the 

 lower jaw considerably shorter than upper, upper lip below level of 

 pupil, maxillary not reaching to eye. deniai-s 1 bones dilated, the ma 

 cons channels conspicuous. Suborbital very bnia.l, silvery, with an 

 ele\:iu-d loii-itudinal riil-i- and conspicuous cross-lines ; opei'cle small. 

 . I in head. Fin- saiall, dorsal over ventrals. Scales mod 

 crate. Lateral line nearly straight, lin-asi scleless: L5 IflXge scales 

 before d.ti ,.il. Color obvaceous, i-ather pale: sides bright silvery, with 

 bluish rellcctioiis; a dark dorsal si real;, conspicuous posteriorly; fins 

 plain; males withonl tubi-rcles or bright colors. Head .'I; 1 ; depth 

 1). ,s; A.. 8; BCali \] leeih 1. t-J.O. L. ."> inches. Ohio Valle\ 



to Mississippi ( llnii,: locallv ver\ abundant. < )ne of our most icmark 

 alile species of ( 't//>ft it i.ln 



id ( !j pr. Penn. .: ! : Qllnther, \ ii, 183.) 



