CATALOGUE. 



FAMILY [TN1ONID/K. 



(RIVER MUSSELS.) 



GENUS ANODONTA. 



Gills free; eggs received throughout the gill; anal opening not fringed. 



Shell equivalve, ovate, usually thin, auriculate, inequilateral, closed' 

 lx'<ilis small. Hinge ivithout teeth, but furnished with a lamina; ligament 

 external, linear. Pallial impression simple. (H. and A. Adams.} 



lAnodonta argentea. Lea. 



(Trans. Am. Phi!. Soc. 2nd Ser., Vol. VIII, PI. XIX, Fig-. 41.) 

 This species was described from Stone's river, Tennessee, and has been re- 

 ported from no other locality. It forms a member of the group of which Ann- 

 dnnta fcrusxaciana. Lea, is the type. 



! Anodonta arkansensis, Lea. 



(Trans. Am. Phil. Son., 2nd Ser., Vol. X, PI. XXIX, Fi. 50.) 



Described from the Little Arkansas river. The most northerly locality re- 

 ported is Mill Creek, near Alma, Kansas. The form is, lerhaps, properly .to' 

 be regarded as a synonym of Anodonta- edentula. Say, which see. 



J Anoilonta bealii. Lea. 



(Jouv. Acad. Nat. St-i. Phila. 2nd Series, Vol. VI, PI. IX, Fig-. 25.) 

 Distributed from north-eastern Kansas to Texas. The original locality is in 

 Leon county, Texas. 



* f Anodonta hiichanensis. Lea. 



(Trans. Am. Phil. Soc , Vol. VI, PL XIV, Fig-. 45U 



Buck Creek and Grand river, Ohio. Not reported elsewhere. This species 

 Lrnmps with Anodonta ferussaciana, Lea, and is suspiciously close to it. 



