32 THE BRACHIOPODA. 



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

 jection of the margin is frequently longer than the other. 



Localities. Bradford Abbas, Broadwindsor, &c. (Dorset) ; also 

 Nunney, near Frome (Somerset). 



31. WALDHEIMIA CARINATA, Lamarck. 



1851. TEREBRATULA CABINATA, Davidson, British Brach. Palseont. 

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



1873. ,, (WALD.) CARINATA, E. Desl., Brachiopodes 



Jurass., plate 62. 



1877. WALDHEIMIA CARINATA, Davidson, Proceedings of Dorset 



Club, plate iii., figures 6-7. 



1878. ,, CARIXATA, Davidson, British Brach. 



Palseont. 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 WaUheimia Mandelslohi. Oppel, who named it, 

 says that it comes from the Corn&rash, is like figure 12, table 4, 

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

 of the lesser valve is deeper and the larger valve more arched.* 5 

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

 with the valves much thickened. Deslongschamps in Brach. 

 Jurassiques, plate 85, figures 3-5, gives TereJ). (W) Mcmdelslohi, 

 (Oppel) from the Fullers Eai'th, but these figures do not seem to 

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

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

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



* Oppel Juraformation, pa^e 495, No. 85. 



