128 PROC. COTTESWOLD CLUB VOL. xiii. (2) 



Balin. He also refers to the specimen figured by Dr 

 Davidson, and to a similar specimen from the Fuller's 

 Earth of Metz, which is figured by M. Deslongchamps, 

 (Terr. Jur. Pal. Franc, pi. CIV., figs. 3, 4) as synonyms. 

 Both Dr Davidson and M. Deslongchamps describe the 

 specimens figured by them as the young of T. iitaxillata ; 

 and it cannot be denied that young T. tnaxillata are very 

 like the figures. 



In the Upper Ragstone beds of Rodborough, either the 

 Upper Trigonia-, or Clypetis-QiXW, I have found a number 

 of specimens of various ages which are totally unlike any 

 other form occurring in those beds, but somewhat resemble 

 Szajnocha's figure. However, I consider the Cotteswold 

 forms sufficiently distinct from Oppel's species to justify 

 my giving them a specific name. Moreover, the beds in 

 which they occur in the Cotteswolds are older than those 

 in which T. 7nar}}wrca i.s found either in Wiltshire, at 

 Balin, or Metz. 



I am not aware that T. lentiformis is found in any 

 locality outside the Cotteswolds. 



7. RHYNCHONELLA FORBESI, Davidson. 



1852. Rhynchonell.\ Forbesi, Dav., Mon. Brit. 

 Oolitic and Liassic Brach., Vol. I., pt. 3, 



pi. xvii., fig. 19. 



I have two specimens from near Stroud. One I found 

 at Swift's Hill in the top of the sandy bed which occurs 

 in the T. Biichnani-GxiX, and the other is from the same 

 horizon at the Frith. The specimens are the exact coun- 

 terparts of examples wdiich I have from the neighbourhood 

 of Bradford Abbas, where it occurs plentifully. 



