60 PROCEEDINGS OF THE ACADEMY OF [1898. 



7. Tagelus subteres Conrad. 



Southern California to Lower California. 



FOSSIL SPECIES OF THE TERTIARY. 



Eocene. 



Psammobia (Gobrceus) ozarkana Harris. Chickasawan. 

 Psammobia (Garum) jilosa Conrad. Claibornian. 

 Psammobia (Garum) claibornensis Dall. Claibornian. 

 Psammobia (Gobrceus) blainvillei (Lea). Claibornian. 

 Psammobia (Gobrceus) hornii (Gabb). Tejon. 

 Psammobia (Gobrceus) papyria Conrad. Jacksonian, Vicksburg- 

 ian and Chipolan. 



Psammobia (Gobrceus) lintea Conrad. Vicksburgian. 



Miocene. 

 Asaphis centenaria Conrad. Chesapeake. 



Pliocene. 



Psammobia (Gobrieus) wagneri Dall. Caloosahatchie and Wac- 

 camaw beds. 



Psammobia (Gobrams) edentula (Gabb). Californian. 



Tagelus gibbus Spengler. Caloosahatchie beds, and also Pleisto- 

 cene of South Carolina. 



Tagelus divisus Spengler. Caloosahatchie beds, and also Pleisto- 

 cene of South Carolina. 



The other North American fossil species referred to Psammobia, 

 Psammocola, Sanguinolaria, Solecurtus, Siliquaria, etc., belong in 

 other genera or are synonyms of the cited species. 



SYNONYMS AND CORRECTIONS. 



Capsa deflorata Orb. — Asaphis eoccinea (Mart.) Morch. 

 Cultellus californianus Conrad, = Tagelus californianus. 

 Gultellus caribcms Conrad, 1845, = Mocha sp. 

 Cultellus subteres Conrad, — Tagelus subteres. 

 Leguminaria floridana Conrad, = Tagelus divisus Spgl. 

 Mesopleura bidentata Conrad, = Tagelus divisus. 

 Petricola centenaria Conrad, = Asaphis centenaria. 

 Psammobia affinis C. B. Adams, = Heterodonax bimaculata. 

 Psammobia biradiata C. B. Adams, = Heterodonax bimaculata. 

 Psammobia casta (Desh.) Reeve, — Macoma cognata C. B. Ads. 

 Psammobia cayennensis Lam., = Macoma constricta. 



