SUPPLEMENT, PLATE XXIV. 

 Fig. 

 1 — 4. Waldheimia perforata, Piette. 1. Lower Lias, Robin Hood Bay, Yorkshire. Collection of Mr. 



Walker. 2. Lower Lias, zone of Am. angulatus, Charmouth, near Lyme 



Regis. 3. = T. ornithocephala, Sow. From the original example in 



British Museum (' Min. Con.,' tab. 101, fig. 4). Blue Lias, Pickeridge. 



4. A specimen showing long loop, after E. Deslongchamps, • Brach. Pal. 



Brae. Jur.,' pi. xxiii, fig. 1. (P. 164.) 

 5. „ ? Middle Lias, Bugbrook, near "Weedon, Northamptonshire. Collection of 



Mr. Walker. (P. 164.) 

 6 — 8. ,, Dorsetensis, Walker. Supra-Coralline, Abbotsbury, Dorsetshire. Collection of 



Mr. Walker. (P. 176.) 

 9 — 11. „ Barwini, E. Desl. Middle Lias, Clandown Quarries, Radstock. Collection of 



author. (P. 163) 

 12, 13. „ margaritata, Oppel. 12. Coral Rag, Farringdon. Collection of Mr. J. F. Walker. 



13. Coral Rag, Calne. (P. 1/6.) 

 14, 15. „ Cadomensis, E. Desl. Young example. Inferior Oolite, near Bath. (P. 170.) 



16,17. „ ? Inferior Oolite, Bradford Abbas. Collection of Mr. D. Stephens. 



18, 19. ,, humeralis, Roemer. Upper Oolite, Garty, Sutherlandshire. Collection of author. 



(P. 183.) 



20. „ sp. ? An internal cast, showing an unusually long median septum or slit 



caused by it. Species not known. Coralline Oolite, zone of Am. 

 perarmatus (Lower Calcareous Grit), Bramberry Hill, Sutherlandshir . 

 Collection of author. (P. 185.) 



21. „ cardium, var. Lec/champtonensis, Walker. Inferior Oolite (?), Andoversford. Museum 



of School of Mines, London. (P. 185.) 



22. „ „ Forest Marble, Islip, near Oxford. Collection of Mr. J. Parker. (P. 185.) 



23. „ bucculenta, Sow. Elsworth Rock (Oxford Clay Series), Elsworth. Woodwardian 



Museum, Cambridge. (P. 173.) 



24. ,, ,, Passage beds, Lower Calcareous Grit, Appleton, near Malton, Yorkshire. 



Collection of Mr. J. F. Walker. (P. 173.) 



25. ,, ? Cornbrash, Scarborough Yorkshire. Leckenby Collection. Woodwardian 



Museum, Cambridge. (P. 173.) 



26. „ bucculenta. Lower Calcareous Grit, Filey, Yorkshire. Collection of Mr. Walker. 



(P. 173.) 



27. j, ornithocephala, Sow. A very large specimen. Fuller's Earth, Burton, Somersetshire. 



Collection of Mr. Walker. (P. 167.) 



28. 29. ,, „ var. Kelloway ensis, Etheridge, MS. Kelloway Loch, Kelloway. 



Museum of School of Mines, London. 

 30, 31. „ Lycetti, Dav. Upper Lias, Bloxham, near Banbury, Oxfordshire. Collection of Mr. 



James Griffin. (P. 175.) 



32. „ impressa, V. Buch. Oxford Clay, Oxford Castle. Oxford Museum. (P. 182.) 



33. „ curvifrons, Oppel. A fine example. Oolitic Marl (Inferior Oolite), Leckhampton 



Hill. Collection of Mr. J. F. Walker. (P. 153.) 



34. ? sp. ? Middle Lias (Marlstone), Thorp, Satchwell, Leicester. Collection of Mr. 



J. Harrison. 



