XIV 



SYSTEMATIC INDKX. 



Cardium 



Hemicardium 

 Don ax 

 Cyclas 



Cyrena 

 Cyprina 

 Galathjea 

 Corbis 

 Tellina 

 Loripes 

 Lucina 

 Venus 



Venus proper 

 Astarte 

 Cytherea 

 Capsa 

 Petricola 

 Corbula , 

 Mactra 



Mactra proper 

 Lavignon 

 [ncltjsa 

 Mya 



Lutraria 

 Mya proper 

 Anatina 

 Solemya 

 Glycymeris 

 Panopea 

 Pandora 

 Byssomia 

 Hiatella 

 Solen 



Solen proper 

 Sanguinolaria 

 Psammobia 

 Psammothea 

 Pholas 

 Teredo 

 Fistulana 

 Gastrochsena 

 Teredina 

 Clavagella 

 Aspergillum 

 ACEPHALA NUDA 

 Segregata 

 Biphora 

 Thalia 



Biphora proper 

 Ascidia 

 Aggregata 

 Botryllus 

 Pyrosoma 

 Polyclinum 

 ERACHIOPODA 

 Lingula 

 Terebratula 



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