THE GEOLOGICAL AGE OF CEXTRAL AND -^VEST COKXIiVALL. 1 75 



16. Lingula squamifonnis ? — Eeaclymoney, near Fowey. Peach 



Trans. E.Gr.S.C, ix. 53. This species is not mentioned 

 by Murchison. A Devonian species according to 

 Davidson, I'al., Soc, xviii, p. 105, PI. xx., figs. 11 and 

 12. Identical with the Z. Mola, (Salter.) 



17. Spirifera Baruniensis. — Looe. This has been regarded by some 



as a mere variety of S. diyuncta, and there is a speci- 

 men so named in the Penzance Museum, but Davidson 

 recognises it as quite distinct, and lowest Devonian. 



18. S. primava — Looe and Polperro. Davidson, Vul. Soc. 



S. cultnj'igata. This species has been stated to occur at 

 Looe, and specimens so named are in the Penzance 

 Museum from East Looe and from St. Veep, but Mr. 

 Davidson thinks it is more likely S. primceva. 



19. S. calligergalus. Looe and Polperro. Davidson, /o^;. c/^. The 



above 3 spirifers are all Mr. Davidson has been able 

 to name from these localities, but he sa3's*' that there 

 are evidently two more sj)ecies at least which he has 

 not yet made out. Older authors have described 4 

 other species of Spirifera from Fowey, viz., mesomala, 

 mesolola, ohliterata, and speciom, all of which were found 

 and described by Mr. Peach in 1844, but Mr. Davidson 

 has not seen fossils from Fowey itself. 



The following Spirifers are in the Museum of the Geol. Soc. 

 of Cornwall, at Penzance : — 



24. S. macroptera — Fowey and Looe. 



25. S. disjuncta — Looe, St. Yeep and Fowey. This is probably 



S. Baruniensis (Dav. j 



26. S. (jigantea — Fowey and Polruan. 



27. S. costata — Looe, Polruan, Pridmouth, St. Veep. 



28. S. grandaeva — St. Veep. 



29. S. calcarata — St. Veep and Fowey. 



The following is in the IVIuseuni of Pract. Geol Lond. 



30. S. octoplicata. 



All these last 7 species of Spirifera are on the autliority of 

 McCoy. 



* lu .a private communication under date October 16' h, 1883. 



