408 Prof. T. R. Jones and Dr. H. B. Holl on the 



The larger specimen (fig. 16) of an interior has the straight 

 dorsal edge, and shows a swollen dorsal region, as in fig. 11. 



This species is not uncommon in bed 25^, Vine ColL, 

 XXIX ; and at Woolhope, Smith Coll. no. 66 and no. 72 ; 

 also at Lincoln Hill, Ironbridge, no. 70. 



6. Primitia f hnticularis, Jones and Holl. 



(PI. XIV. figs. 1 a, 1 h.) 



Primitia lenticularis, J. & H., Aim. & Mag. Nat. Ilist. ser. 4, vol. iii. 

 1869, p. 219, woodcuts, figs. 4 a, b, c. 



-p ,. fFig. 1: L. 17. H. 15. Th. 9. 

 Proportions : | ^^^^^^ ^^ .^^ ^gg^ , j^^^ ^ ^^^ ^j^_ ^^^ 



Some specimens closelj corresponding in side view and 

 profiles with those described and figured in 1869 occur in the 

 Smith Coll. no. 39, Dudley Castle ; no. 58, railway-cutting, 

 side of Severn, Ironbridge ; no. 59, Red Shale, Malvern 

 Tunnel ; no. 71, Sedgeley (Wenlock Shale) : in the Vine 

 Coll. xxxii, 2, bed no. 25 ; xxxiii, bed no. 25* ; and LXYie, 

 Tickwood Beds. Most abundantly in nos. 58 and 59. 



7. Primitia Picemeriana^ Jones and Holl. 



Primitia Pameriana, J. & H., Ann. & Mag. Nat. Hist. ser. 3, vol. xvi. 

 1865, p. 422, pi. xiii. figs. 8 a, b. 



Proportions :— L. 17. H. 13. Th. 5. 



This occurs in the Vine Coll. xxxii, bed no. 46; LXV5,e, 

 Shale over the Wenlock Limestone ; and LVI, bed no. 46. 



8. Primitia fahulina, sp. nov. 

 (PL XIV. figs. 2 «, 2 h.) 



Proportions :— L. 15. H. 10. Th. 6. 



This is a rather small, bean-shaped, compressed, ovate- 

 oblong Primitia, near P. variolata , 3 . & H., in general aspect, 

 but it is much more compressed at the ends, especially ante- 

 riorly, and has a smooth surface. The edge view is narrow- 

 ovate, acute at each end. 



This is found in some numbers in Smith's Coll. no. 48, 

 Dudley Tunnel; and in Vine Coll., LiVi &4, bed no. 37. 



9. Primitia variolata, Jones and Holl. 



Primitia variolata, J. & H. Ann. & Mag. Nat. Hist. ser. 3, vol. xvi. 

 1865, p. 418, pi. xiii. figs. 6 a, b. 



Proportions:— L. 11. H. 7-5. Th. 4*5. 



t For Primitia see Ann. & Mag. Nat. Hist. ser. 3, vol. xvi. 1865, 

 p. 415. 



^ 



