136 



PERCIDAE. 



13. PERCA Linnaeus. 1766. 



Type : Perca fluviatilis L. (Europe). 



42. Perca flavesceus (Mit.) Cuv. Great Lakes and Atlantic Streams. 



14. STIZOSTEDIUM Rafinesque, 1820. 



43. Stizostedium salinoneum Raf. Ohio Valley. 



44. Stizostedium americaiium (Cuv.) Qirard' Great Lakes and Oliio Val. 



45. Stizostedium griseuiu (Dekay) Milner. Great Lakes, d. s. 



46. Stizostedium boreum (Rich.) Girard. Upper Mo*. River and N. d. s. 



47. Stizostedium canadense (Smith) Milner. St. Lawrence River, d.s. 



LABRACIDAE. 



^ 15. ROCCUS Mitchill, 1817. 



Type: Roccus striatus Mit. =Sciaena lineata 

 Bloch. (Atlantic Coast.) 

 § LEPiBEMA Rafinesque, 1820. 



48. R. clirysops (Raf.) Gill. Great Lakes ; Ohio Valley. 



16. MORONE Mitchill, 1817. 



Type : Morone rufa Mit. —Perca americana Gmel. 

 (Atlantic Coast). 

 40. M. interrupta Gill. Lower Mississippi River. 



ICHTHELIDAE. 



17. MICROPTERUS Lacepede, 1802. 

 .50. M. salmoides (Lac.) Gill. Great Lakes ; Ohio Valley, etc., rather N. 



51. M. nigricans (C. and V.) Gill. Great Lakes ; Miss. Valley, rather S. 



18. CENTRARCHUS Cuvier, 1829. 



52. C. irideus Cuv. South Carolina, etc. 



19. POMOXYS Rafinesque, 1818. 

 § POMOXYS Raf. 



53. P. annularis Raf. Ohio Valley and Mississippi Valley. 



