A Contribution to the Knowledge of Tennessee Crayfish

The state o f Tennes se e has 60 nominal spec ies or sub­ spe c i e s of c rayfish within i t s polit i ca l b oundary or in nearby tributaries that f l ow int o the s tate . The s e crayfish repre s ent five genera . The genera Procambarus and Cambar1JS are further subdivi ded int o s ubgenera t o s ho·�1 phyl ogene t i c relat ionship s within t h e genus . Each s p e c i e s i s list e d under it s generic or infrageneric category with the following in­ formation : (1 ) type locality , (2) loc at ion o f type speci ­ men s , ( 3 ) range , ( 4 ) crayfi s h a s s o c iat e s , (5) l i fe history not e s , (6) e co l ogical dat a , and as needed (7 ) not e s on taxonomi c s tatus or informati on not c overe d in any of the above s i x s e ct i ons . The phy s iographic province s in Tennes s ee are d e s crib e d . Methods for c ollecting and pre s ervation are inc lude d .