KOTES ON THE BRITISH JUEASSIC BRACHIOPODA. 241 



V. Microthyrisj Eug. Desl., 1884. (Tjq^e : M. lagenalis, 

 Sclil. sp.) 



YI. Aulacothyris, Douville, 1879. (Type : A. resupinata, 

 Sow. sp.) 



VII. Epicyrta, Eug. Desl., 1884. (Tjpe : E. eugenii, Von 

 Bach sp.) 



VIII. Gincta^ Quenstedt, 1871. (Type : G. cor, Lam. sp.) 



IX. Flesiothyris, Douville, 1879. (Type : P. verneuilli, 

 Desl. sp ) 



X. Antlptychina, Zittel, 1883. (Type : A. bivallata, Desl. 

 sp.) 



XI. Orthoidea, Friren, 1875. (Probably young of numis- 

 malis.) (Type: 0. Hasina, ¥ riven sip.) 



This arrangement does not appear very satisfactory. In 

 a future communication I hope to state my reasons for 

 thinking so. However, as some seven or eight of these 

 sections are met with in our Jurassic rocks, we may now 

 proceed to a consideration of them; 



EuDESiA, sensu strict o. 

 (Type : E. cardium, Lam. sp.) 



Etym. — Dedicated to M. Eudes Deslongchamps, the dis- 

 tinguished palaeontologist. 



Eudesia was briefly described by King, its author, as " A 

 plaited Terehratulidia. Marginal outline more or less oblong 

 longitudinally. Beak projecting; truncated by a large 

 foramen, which is bounded inferiorly by a deltidium. Punc- 

 tures moderate in size. Type: Ter. orbicularis =Ter. car- 

 dium, Lam. sp." (14, p. 144). This brief diagnosis is not ex- 

 ceeded by Deslongchamps. He simply states that " Eudesia 

 is characterized by the angular disposition of the 

 plicae, by the relatively compressed form of the beak, and by 



