Notes on Fossils from the Falkland Islands. 255 



3. Chonetes falldandica, M. and S. 



Numerous impressions of CJionetes are to be seen upon the 

 slabs of stone, but none of them in a very perfect state of 

 preservation; and in no instance have hinge-spines been 

 detected. Some of the specimens may be referred to 0. falk- 

 landica without much doubt ; but others, which are larger, 

 may perhaps belong to another species. 



Chonetes falklandica has been found in South Africa, but 

 Mr F. E. C. Eeed questions the identification of specimens 

 so named from Argentina; and Mr Ivor Thomas is unable to 

 identify it among his fossils from that country. 



4. Orthotetes. 



There are a few impressions of Orthis-like Brachiopod 

 valves which resemble some of the forms figured by Morris 

 and Sharpe. Three of these represent valves externally 

 concave, and marked by numerous radiating lines ; and they 

 seem most nearly to resemble 0. Sidivani, but cannot be 

 definitely determined. 



5. Cryptonella Baini, Sharpe (PL X. Figs. 15, 16). 



This Brachiopod, under the name of Terebratida Baini, 

 was first described by Sharpe from South Africa, and has 

 been further described by Mr F. E. C. Eeed from the same 

 country, but it seems not to have been hitherto recognised 

 among fossils from the Falkland Islands. There are among 

 Mr Bruce's specimens two casts representing the exteriors of 

 two shells, long and broad forms, like those represented by 

 Sharpe's two figures, plate xxvi. figs. 11 and 12, and 

 these I refer to the same species. The internal structure is 

 not seen ; but feeling sure that they are the same species as 

 that described by the above-named authors, I follow Mr Eeed 

 in placing it in the genus Cryptonella. 



6. Orhicidoidea Baini, M. and S. 

 Several pieces of this Brachiopod have been detected 



VOL. XVI. 2 A 



