252 PROC. COTTESWOLD CLUB vol. xiil. (4) 



emarginata, is a distinct shell, but it belongs to the same 

 genus ; while 3, in spite of the fact that Davidson has 

 drawn it with the angular beak ridges characteristic of 

 Waldheiuiia (or Zeillerid), is undoubtedly a Terebratula 

 — a short looped, non-septate species, with rounded beak 

 ridges. 



Lastly, there is an altogether new species which has 

 not been figured or described : — 4, from the Inferior 

 OoUte, like No. 3 in general shape, but longer. But it 

 is not a Terebratula, it is a Zeilleria ; yet again it differs 

 from the other Zeillerice by having an incurved beak. 



This species is very like Z. corntUa of the Middle Lias. 

 I found it about twenty years ago, and sent it to Dr 

 Davidson with several of the other new species described 

 in this paper.* He agreed with me that they were new 

 species, and that they required naming, but he had drawn 

 all the plates for his work, and was unable to include 

 them. He hoped that I should undertake the task of de- 

 scribing them. At last I have partly carried out his wish. 



These species may now be definitely noted in the 

 following manner : — 



6. (i) Zeilleria emarginata (J. de C. Sowerby). 



1825. Terebratula emarginata, /. de C. Sowerby, 



Min. Conch., Vol. V., pi. ccccxxxv., fig. 5. 



The large specimen only. 

 1 85 1. Terebratula emarginata, Davidson, Ool. 



Brach. (Pal. Soc), pi. iv., fig. 18 only, 



re-figure of Sowerby's type. 

 1863. Terebratula (Waldheimia) emarginata, 



E. Dislongschamps, T. Jurass. Brachiopodes ; 



Pal. fran?., pi. Ixxxv., fig. i. 

 Non. Waldheimia emarginata, Davidson, and many 



other authors. 



* For instance : T. hyaliiia, T. microtiypa, T. siibomalogaster, Z. ferruginea; 

 and others not figured yet. 



