THE BRITISH FOSSIL BRACHIOPODA. 267 



Somersetshire, and I do not know that it has occurred anywhere else in England. The 

 adult specimens are very similar to Wald. anglica, Oppel, but the peculiar raised beak at 

 once distinguishes it. The young might perhaps be taken for young forms of Wald. 

 mbbuculenta (Chap, and Dewalque). Waagen found his specimens in the Sowerbyi- 

 zone, and says that he has six specimens from Gin gen (Wiirttemberg), and does not 

 know it from anywhere else. 



It seems to vary considerably in shape, some examples being nearly circular or 

 longitudinally oval, others tapering anteriorly and broadest posteriorly; generally nearly 

 as wide as long, and measuring 8 lines in length by 7 in breadth. It was also found 

 by the Rev. G. F. Whidborne in the Inferior Oolite at Mosterton. 



24. Waldheimia Hughesi, Walker. Dav., Appendix to Supplements, Vol. V, PI. 



XVIII, figs. 23, 23 a, b, 24. 



This species was briefly described at p. 174 of my 'Jurassic Supplement,' but 

 inadvertently not figured. I now fill up the deficiency. 



25. Waldheimia reversa, S. 8. Buchnan, MS. Dav., Appendix to Supplements, 



Vol. V, PI. XIX, fig. 13; 

 PL XX, figs. 13, 13 a, b. 



Shell sub-pentagonal, longer than wide, broadest anteriorly, tapering posteriorly. 

 Dorsal valve moderately convex, with a rounded mesial fold commencing at a short 

 distance from the umbo. Ventral rather deeper than the opposite valve, with a 

 concave mesial sinus of moderate depth ; beak incurved, and truncated by a circular 

 foramen. 



Length 1 inch, breadth 9 lines. 



Obs. — I have seen one specimen only of this fossil, and can say very little with 

 respect to its specific value. Mr. S. S. Buckman considers it new, and I describe it as 

 such on his authority. It appears to me to be closely related to Wald. Haasi, and 

 especially to those specimens of the last-named species which present a rounded elevation 

 along the middle of the mesial depression in the dorsal valve. Wald. reversa was 

 obtained from the Inferior Ooolite at Bradford-Abbas in Dorsetshire. 



36 



