﻿PLATE XXIII. 



Plattostoma ? deforhe, Sowerby, sp. (Page 200.) 

 Fig. 



1. Specimen retaining ornament, though not shown in the figure, defective from having been embedded 



iu matrix; la, apical view. Wolborougli. Torquay Museum. 



2. Small specimen. Wolborough. British Museum. 



3. Another specimen, with injured surface and rather worn, but evidentlv having its spire composed 



of much less exposed whorls. Wolborough. Museum of Practical Geology. 



4. Fine specimen, almost entirely free from matrix, but with decorticated surface, partially restored 



about the spire. There is a pinching in round the middle of the whorls, which it has beeu 

 found impossible to represent in the drawing, x 2 5. Wolborough. Museum of Practical 

 Geology. 



5. Another specimen, retaining surface, but with defective spire, x 1*5 ; 5 a, portion of surface 



enlarged. Wolborough. Museum of Practical Geology. 



Plattostoma speciosum, Sowerby, sp. (Page 202.) 



6. Small specimen retaining shell, x3; 6 a, apical view. Lummaton (?). Torquay Museum. 



Scoliostoiia texattjm, Miinster, sp. (Page 231.) 



7. Specimen showing the ornament and the aperture. Wolborough. Museum of Practical Geology. 



X 2-5. 



8. Basal view of a specimen showing the twisting of the body-whorl and the ornament, though some- 



what worn, x 2"5. Wolborough. Museum of Practical Geology. 



9. Specimen wanting the surface, but showing the twisting of the body-whorl. Lummaton (?). 



Torquay Museum. 



Scoliostoma gracile, Sandberger (?). (Page 233.) 



10. Specimen with worn surface, x 2; 10 a, basal view, showing its defective mouth. Wolborough. 



Torquay Museum. 



Antitrochus arietinus, n. sp. (Page 235.) 



11. Specimen showing the ornament, x 2'5. Wolborough. Museum of Practical Geology. 



12. Specimen showing aperture, though slightly defective, X 1"5. Wolborough. Museum of Prac- 



tical Geology. 



13. A wider specimen, in which the body-whorl has been broken and mended during the life of the 



animal so as to cause a deflexion in the ornament, x 2. Wolborough. Museum of Practical 

 Geology. 



Philoxene philosophtts, Whidborne, sp. (Page 238.) 



14. Specimen showing aperture. Chudleigh. Vicary Collection. 



15. 15 a. Largest specimen known, showing the casts of agglutinated univalves and other shells. 



Chudleigh. Vicary Collection. 



16. Specimen showing casts of agglutinations. Chudleigh. Vicary Collection. 



17. Small specimen showing the cast of an agglutinated Brachiopod. Lummaton. My Collection. 



Philoxene l^ivis, d'Archiac and de Vemeuil, sp. (Page 239.) 



18. Apical view of a specimen bearing small scars from agglutinations ; 18 a, side view. Wolborough. 



Museum of Practical Geology. 



19. Small specimen with almost flat spire. Wolborough. Vicary Collection. 



Euomphalus Diontsii, Montfort. (Page 244.) 



20. Apical view of a small specimen ; 20 a, side view. Lummaton. Woodwardian Museum. 



