308 APPENDIX. 



and these are the same as those from the small island in 

 the same soimd. One is a large Productus, which I 

 cannot identify completely with any British species. It 

 may be a large variety of one of our common shells^ 

 P. semireticulatus, or even a form of P. costatus. In 

 any case it is of a Carboniferous type. 



The specimens from the island in Bell Sound are 

 much more numerous ; and in a grey limestone we 

 have — 



1. Athytis or Spirifer, a large smooth species, nearly 

 3 inches across, without any definite hinge-line, and with 

 very strong ventral muscular impressions. The shell is 

 much depressed. 



2. Productus costatus, Sowerby, very large, and 

 deeply bilobed. — Abundant. 



3. Productus, the large striate species above men- 

 tioned. 



4. P. Humboldtii, D'Orbigny, two or three specimens. 



5. P. mammatus, Keyserling (?), or an allied species, 

 without large scattered spines. This species occurs in 

 Arctic America, having been brought by Captain Belcher 

 from the point opposite Exmouth Island. It is the P. 

 Leplayii of De Koninck's paper on the Fossils from 

 Spitzbergen, but not, I think, of De Verneuil, who de- 

 scribed that species in " Russia in Europe." 



Von Buch quotes the Productus giganteus from the 

 South Cape and from Bell Sound ; this is not noticed at 

 all in Prof. Koninck's list (1849, op. cit. p. 633). 



6. Camarojjhoria, a large species, not unlike in shape 

 to the Rhynchonella acuminata of the Carboniferous 

 limestone, but ribbed throughout. 



7. Spirifer Keilhavii, Von Buch. Several specimens. 



