SUPPLEMENT, PLATE XIIL 

 Fig. 



1, 2. Orfhis or Strophomena ? Kilbuchoensis, Dav. 1. Internal cast, showing muscular, 



ovarian, and vascular impressions, en- 

 larged. 2. Literior of the dorsal valve, 

 taken in gutta percha from a finely 

 preserved internal cast, enlarged, showing 

 cardinal process, septum, muscular and 

 ovarian, and vascular impressions in a 

 wonderfully beautiful state of preserva- 

 tion. Caradoc, KilbuchOj near the 

 church, two and a quarter miles west. of 

 Culter, Peebleshire. Coll. of the Geol. 

 Survey of Scotland. (P. ISS.) 

 3 — 6. „ Jlabellulum, Sow, 3, 4, 5. Llandeilo, Craighead, Girvan. 6. Cast 



of interior of ventral valve. Upper 

 Caradoc, Thraive. All in coll. of Mrs. 

 R. Gray. (P. 179.) 

 7, 8. „ crispa, M'Coy. 7. Middle Caradoc, Thraive, Girvan. 8. Llandeilo, 



Ardmillan Brae, Girvan. Both in the 

 coll. of Mrs. R. Gray. (P. 176.) 

 9, 10. „ Lapworthi, Dav. 9. Middle Caradoc, Shallock Mill, Girvan. 10. 



Llandeilo or Balcletchie Conglomerate, 

 Girvan. Both in the coll. of Mrs. R. 

 Gray. (P. 176.) 



11. „ nina, Dav. Middle Caradoc, Whitehouse Bay, Girvan. Coll. of Mrs. 



R.Gray. 11 a, «5. Enlarged. (P. 177.) 



12 — 14. „ Baldetchiensis, Dav. 12 and 14. Llandeilo, Craighead, Girvan. 13. 



Balcletchie Conglomerate, Girvan. Coll. 

 of Mrs. R. Gray. (P. 176.) 



15, 16. ,, polycjramma, Sow., var. Fentlandica, Dav. Upper Llandovery Penkill, 



Girvan. Coll. of Mrs. Gray. (P. 179.) 



17. ,, elegantulina^ Dav. Lower Wenlock shales, Buildwas, Shropshire. 



(P. 219.) 



18,19. „ .^ Cro/iff, Dav. Caradoc, Ty-isaaf, LlansantfFraid. Coll. of Mr. Croft. 



(P. 179.) 



20, 21. „ JIaheUulum, Sow. Llandeilo, Ardmillan Brae. Coll. of ]\Irs. R. Gray. 



(P. 179.) 



22. ,, nistica, Sow. Upper Llandovery, Penwhapple Glen, Girvan. Coll. of 



Mrs. R. Gray. (P. 178.) 



23 — 26. „ calligramma, Dal. 23. Llandeilo, Ardmillan I3rae. 24. Craighead. 



25. Upper Llandovery, Penkill beds, 

 Penwhapple Glen. 26. Internal cast, 

 Llandeilo, Ardmillan Brae. All in Girvan 

 district, and coll. of Mrs. R. Gray. (P. 

 181.) 



27. „ plicata. Sow. Upper Llandovery, Minsterley, Shropshire. Coll. of 



Mr. R. Philip. (P. 182.) 



28. „ unguis ?, Sow. Llandeilo, Craighead, Girvan. Coll. of Mr. J. Thom- 



son. (R 177.) 



29. „ sagittifera, M'Coy. Lower Llandoverv, JMullock Hill, Girvan. Coll. 



of Mrs. R. Gray. (P. 181.) 



30. 31. „ testudinaria, Dal. 30. Llandeilo, Craighead. 31. Middle Caradoc, 



Girvan. Coll. of Mrs. R. Gray. (P. 178.) 



