CYPRINID^E. CVIII. 291 



21. NOTEMIGONUS, Rafinesque. GOLDEN SHINERS. 



= Stilbe, DeKay (preoccupied in Botany.) 



= Stilbius, Gill (substitute for Stilbe.) 



= Luxilus, Girard (not of Raf.) 



= Leucosomus, Storer (not of Haeckel.) 



= Plargyrus, Putnam (not of Raf.) 



&amp;lt; AbramiS) Cuvier (a closely related European genus). 



1. N. americanus, (L.) Jordan. SHINER. STILBE. 

 BREAM. Body much compressed; abdomen trenchant; 

 head small, about 4 in length ; depth 3 (2|- to 4) ; lateral 

 line much decurved; scales small on the back, much 

 larger below; dark steel blue or green above, sides 

 silvery or golden, every where with brilliant reflections, 

 green, yellow, and red; young specimens paler, looking 

 like young Luxili, but the adults are among the largest 

 in the family and bear a strong resemblance to Shad, a 

 circumstance which has misled many observers, and 

 among them Rafinesque; D. I, 7; A. I, 14; lat. 1. 45 to 

 50. New England to Minnesota and S. ; abundant in 

 bayous, ponds, and weedy streams; this species is much 

 more tenacious of life than any other of our Cyprinoids. 

 \N. auratuS) Raf. S. chrysoleucci, (Mitch.) DeK. A. 

 versicolor, DeK.] 



21. CARASSIUS, Nilsson. CRUCIAN CARPS. 



1. C. auratus, (L.) Bleeker. GOLD FISH. Orange or 

 blackish, rarely pale; D. I, 19; A. I, 8; lat. 1. 26; ex 

 ceedingly variable in domestication Asia; common 

 every where in aquaria, and now naturalized in many of 

 our eastern streams. 



22. CY PRIMUS, Linnaeus. CARPS. 

 1. C. carpio, L. EUROPEAN CARP. Olivaceous; 



