1 64 Bryant Wai^ker 



Anculosa subglobosa Say. 



Does not include A. tintinnabulum Lea and virgata Lea as stated by 

 Tryon (134, p. 404). See Walker (150, p. no). 



Anculosa TINTINNABUI.UM Lea. 



Is a valid species and does not include virgata Lea. See Walker (1. c). 



Anculosa tryoni Lewis. 



Anculosa tryoni Lewis, Am. J. of Con., VI, 1870, p. 221, pi. 12, fig. 8. 

 Type locality: Holston River, Tenn. 



Tryon (133, p. 87) considers this to be the tceniata Con., but the approx- 

 imation is at the best very doubtful. 



AnguIvOSA umbilicata Wetherby. 



Anculosa umbilicata W/etherhy, Jour. Cin. Soc. Nat. Hist., 1876, p. 11, pi. T, 



fig. 4. 

 Type locality: Stone River, Rutherford Co., Tenn. 



AncuIvOSa virgata Lea. 



Is not the young of tintinnabuhini as stated by Tryon (134, p. 404), but 

 is a valid species. See Walker (150, p. no). 



Genus MESECHIZA Lea. 



Has no standing. The type species is the young of Angitrema ■: crni- 

 cosa. See Hinkley (57, p. 56). 



Family NERITID^. 



Genus NERITINA Lamarck, 1809. 



Neritina recIvIVATa Say. 



V. Martens (73, p. 472) considers that this is only a variety of A'', lineo- 

 lata Lam. 



NKRITINA Rr.CLlVATA PAI,M^ Dall. 



Neritina reclivata palmce Dall, Pr. U. S. Nat. Mus., 1885, p. 259. 

 Type locality: Palma Sola, Ela. 



Genus LEPYRIUM Dall, 1896. 



Lepyrimn Dall, Naut., X, 1896, p. 15. 

 Type : Neritina shozvalteri Lea. 



LiiPYRiUM siiowAW'ERi CAHAWBENsis Pilsbry. 



Lepyrimn shmvalteri cahazvbensis Pilsbry, Naut., XX, 1906, p. 5[. 

 Type locality : Cahawba River, Ala. 



