1 ci; 



Fhi-mys: -]). 15: V. IC; V. S: A. 10; ('. 1!)^ 



J/, ohlojtguni, Mitch. (liuMitlier VJI, ji. 21; Lesiienr, 



Jouni. Acad. Nat. Sc. riiilad. 1817, I, ]>. 108: DeKay, Now 



York Fauna, Fi8lies, p. lO'J, pi. -51, iig. ItT. 



This golden sucker inhabits the brackish Avater of the I'a- 

 tapsco Eiver and two of its tributaries. The young ones 

 may sometimes be seen among the Myriophyllum in the estua- 

 ries wliere the clear spring-water enters a cove, but not the 

 older ones. The latter seem to enjoy the presence of the e«l- 

 grass, and sometimes may be seen there in small gi'oups. 

 Their food is at least in i^art vegetable, since undigested 

 seeds in ijuantity have been taken iVom tlieii- stomachs. 



Acad. Coll. S. ]. 



OAEASSIUS, Nilsson. 



C. AUKATUS. 



The Gold-Fisli, Golden Carp. 



Tliis Avell-known fish has been so much influenced by do- 

 mestication, that it is almost irajiossiblc to apply any distinc- 

 tive ]dirase. There is an indefinite variety in color, shap^e, 

 ])osit-ion of fins, even in tlieir number, etc. It is generally 

 long oval, brilliant red or orange above, silvery beneath. 

 The scales are large, and roiiirh to the touch. The following 

 number of rays is often observed. 



Fin-rays:— I). IH: P. 15: V. '1: A. 18: [C. IT. 



C aurafuSj introduced. 



CUjprinus auratu-s, Tj. Syst. Nat., 1. p. 527: Lacep. V. p. 

 553; Cuv. & Val., XVI. p. 101. 



Found in moderate numbers in tlie Potomac River, south 

 of Alexandria, where it has been introduced from abroad. 

 Specimens from that locality are stout and clumsy, witli large 

 scales; and attain a length of at least one loot. 



Acad. Coll. S. I. 



