CLASS II 



Fimbr 



BRACHIOPODA 



407 



iotliyris and Epkyrta Deslong. Jura. Camerothyris Bittner. Trias. 



Cincta Quenstedt. Jura. Antiptychina 

 Zittel. Jura. Plesiothyris Douvill6. Jura. 

 These are all European genera. 



1 Hynniphoria Suess; ? Crurahda Bittner; 

 ? Orthoidea Friren. 



Microtlu/ris lagenalh (Sohlotli.)- Conibrasli ; 

 Rushden, England, i/j (after Davidson). 



Fifi. 613. 



Aitlacothyris resupinafa (Sow.). Middle Lias ; Ilminster, 

 England (after Deslongchamps). 



Subfamily C. Magellaniinae Beecher. 



Terebratellidae ivith the loop composed of descending and ascending branches, 

 passing in the higher genera through metamorphoses comparable to the adult structure 



D 



Fig. 614. 



Magaf: pinailus Sow. White 

 Chalk; Meudon, near Paris. A,B, 

 Shell, i/i- '-', Vertical section. D, 

 Interior of dorsal valve. 



Fio. 615. 



Coenothyris fultiaris (Schloth.). Muschelkalk ; Wlirzburg. ^4, 

 Dorsal and anterior views, i/j. B, Loop enlarged and restored 

 from sections treated with aci<l (partly after Koschinsky). 



of Bouchardia, Magas, Magasella, Terehratella and Magellania. The lower genera 

 become adidt before reaching the terminal stages. Jura to Recent. Recent genera 

 restricted to austral seas. 



Bouchardia Davidson (Fachyrhynchus King). Recent ; South Atlantic. 



Magas Sowerby (Fig. 614). Cretaceous; Europe. Pachymagas von 

 Ihering. Tertiary ; Patagonia. Magasella Dall. Recent. Coenothyris 

 Douville (Fig. 615). Trias; Europe. 



