PLATE 24 

 Sowerbyella multiseptata sp. nov. (p. 132) 



Spy Wood Grit, near Rorrington, Shropshire. 

 Fig. 1. Paratype, BB 35548a. Internal mould of a pedicle valve, x 6-6. 

 Fig. 3. Paratype, BB 35545a. Internal mould of a pedicle valve, X 5-8. 



Sowerbyella cf. sericea permixta Williams (p. 133) 



Aldress Shales, Ox Wood Dingle, Shropshire. 

 Figs. 2, 10. BB 35552a, b. Latex casts of the exterior and interior of a brachial valve, 

 X 6-8. 

 Fig. 4. BB 35554b. Latex cast of the exterior of a brachial valve, x 5-1. 

 Figs. 6, 5. BB 35553a, b. Latex casts of the exterior and interior of a brachial valve, X 4-8, 



X57- 

 Fig. 7. BB 35551a. Internal mould of a pedicle valve, x 3-7. 



Sowerbyella cf. sericea (J. de C. Sowerby) (p. 134) 



Whittery Shales, near Marrington Farm, Shropshire. 

 Fig. 11. BB 35555. Internal mould of a pedicle valve, x 3-2. 



Whittery Shales, Whittery Wood, Chirbury, Shropshire. 

 Figs. 14, 13. BB 35556a, b. Latex casts of the exterior and interior of a brachial valve, 

 X3-5- 



Whittery Shales, near Hockleton Bridge, Shropshire. 

 Fig. 16. BB 35557. Exterior of the pedicle valve, x 2-7. 



Sericoidea cf. abdita Williams (p. 139) 



Hagley Shales, Church Stoke, Shropshire. 



Fig. 8. BB 35485. Latex cast of the interior of a brachial valve, x 7-7. 



Figs. 15, 12, 9. BB 35484a, b. Latex casts of the exterior and interior and the internal 

 mould of a brachial valve, x 8. 



Figs. 18, 17. BB 35487a, b. Latex cast of the exterior and the internal mould of a pedicle 

 valve, x8-6. 



