32 TnE BRACHIOPODA. 



however, seem to unite this species witli W. Waltoni. One pro- 

 jection of the margin is frequently longer than the other. 



Localities. — Bradford Abbas, Broadwindsor, «S:c. (Dorset) ; also 

 Nunney, near Frome (Somerset). 



31. — Waldheimia carinata, Lamar ell. 



1851. Terebratula cabinata, Davidson, British Braeh. Palseont. 

 Soc, plate iv., figures 11-14 only. 



1873. ,, (AVald.) carixata, E. Desl., Brachiopodes 



Jurass., plate 62. 



1877. Waldheimia carinata, Davidson, Proceedings of Dorset 



Club, plate iii., figures 6-7. 



1878. ,, CARIXATA, Davidson, British Braeh. 



Palreont. Soc, supplement plate xxiii., 

 figs. 14-15. 



This is a very variable species, of "which two variations could 

 be well marked, one with thickened valves, the front margin of 

 which is excavated, that is to say, the sides project beyond the 

 middle of the margin. The other is a broad variation, as is 

 represented by E, Deslongschamps, plate 62, figure 7. There is 

 also another variety, a small broad form, figured by Mr. David- 

 son supplement plate xxiii., figures 21, 22, as a ''small variety 

 of Mandelslohi ? " There seems, however, to be some confusion 

 with regard to Waldheimia Mandelslohi. Oppel, who named it, 

 says that it comes from the CornLrash, is like figure 12, table 4, 

 of Tercl. carinata, Davidson, Brachiopoda, only that the sinus 

 of the lesser valve is deeper and the larger valve more arched.^-' 

 Davidson's figure 12, table 4, shews a specimen of Ter. carinata, 

 with the valves much thickened. Deslongschamps in Braeh, 

 Jurassiques, plate 85, figures 3-5, gives Tereh. fWj Mandelslohi, 

 (Oppel) from the Fullers Earth, but these figures do not seem to 

 at all represent Oppel's description and reference to Davidson's 

 figure. The probability is that Wald. Mandelslohi is peculiar to 

 the Cornbrash, from which formation Dr. Oppel quotes it, 



* Oppol Juraformation, page 49o, No. 85. 



