245] W. P. Woodring 47 



Pseudomiltha 1 sp. 



Callucina 3 spp. 



Parvilucina (Parvilucina s. s.) 3 spp. 



(Bellucina) 2 spp. 

 Divaricella 2 spp. 



Diplodonta (Diplodonta s. s.) 2 spp. 

 (Pelaniella) 1 sp. 

 (Phlyctiderma) 1 sp. 

 Erycina 2 spp. 



Anisodonta (Basterotia) 1 sp. 

 Montacuta? 1 sp. 

 Cardium (Cardium s. s.) 1 sp. 



Trachycardium 4 spp. 



Fragum (Fragum s. s.) 2 spp. 



(Trigoniocardia) 3 spp. 



Laevicardium 1 sp. 

 Protocardia 2 spp. 

 Transennella 2 'spp. 

 Tivela 1 sp. 



Gafrarium (Gouldia) 1 sp. 

 Pitaria (Hyphantosoma) 1 sp. 

 (Lamelliconcha) 1 sp. 

 Antigona (Ventricola) 1 sp. 

 Cyclinella 1 sp. 

 Chione (Chione s. s.) 3 spp. 



Chione (Lirophora) 1 sp. 

 Parastarte 1 sp. 

 Cooperella (new section) 1 sp. 

 Tellina 



Arcopagia (Merisca) 4 spp. 



(Phyllodina) 2 spp. 

 (Eurytellina) 1 sp. 



Moerella 2 spp. 



Angulus (Angulus s. s.) 5 spp. 



(Scissula) 1 sp. 

 Strigilla 1 sp. 

 Macoma 



Psammacoma (Psammacoma s. s.) 2 spp. 



Cymatoica 1 sp. 

 Semele (Semele s. s.) 1 sp. 

 Abra 2 spp. 

 Donax 2 spp. 

 Psammosolen 1 sp. 

 Spisula 1 sp. 

 Ervilia 1 sp. 

 Corbula (Aloidis) 1 sp. 



(Cuneocorbula) 1 sp. 

 (Bothrocorbula) 1 sp. 

 Gastrochaena 1 sp. 

 Martesia? 1 sp. 

 Xylophaga? 1 sp. 

 Teredina 1 sp. 

 Teredo 1 sp. 10 



10 



An additional form is considered the type of a new genus of 

 doubtful affinities placed provisionally among the Isocardiacea, prob- 

 ably near the Vesicomyacidas. 



