CATALOGUE^ — SHELLS. 



547 



Habitat in mare alto circa or as Patagonicas, Mus. nost., G. 

 Sowerby, 



Taken by a dredge in 40 fathom water, off the coast of South 

 America, in latitude 44J° south, and found adhering to a Tere- 

 bella. 



4. Pholas Chiloensis. Molina. 

 P, testd elongatd postice ovato-rotundatd, costis posticis dentato- 



muricatis ; antice attermatd striis tra^isversis postic'k undato- 



muricatis, antice muticis ; lat, 5 : long. 2 ; poll. 



Habitat ad insulam Chiloei. Mus. Brit., nost., Brod., Stokes. 



Some doubt has been thrown upon the existence of this shell, 

 notwithstanding the description of Molina. A species very nearly 

 approaching it, if not identical, was found at Rio de Janeiro ; but 

 as only single valves were obtained, and these were in a very im- 

 perfect state, I have not ventured to characterise it. 



The soft parts of Pholas Chiloensis are considered very delicate 

 by the inhabitants of the Island of Chiloe, by whom the animal is 

 called " Co-mesr They are found in great abundance at low water 

 imbedded in the rocks near Sandy Point, at San Carlos de Childe. 



5. SOLEN SCALPRUM. 



S. testd lineari subrectd extremitatibus subrotundatis ; cardine biden- 

 tato; /owg. ij; lat. 3iJ ; poll. 



Habitat ad Patagonice or as Orientates (Sea Bear Bay). Mus. nost. 



6. Anatina elliptica. 



A, testd ellipticd, subtenui, transversim striatd, antice sub-truticatd, 

 epidervfiide fused, tenui ; long. 1§ ; lat, 2| ; poll. • 

 Habitat ad oras Antarcticas (New South Shetland ). Mus, Brit., 



nost. 



This shell was found at New South Shetland, by Lieutenant 

 Kendall, of his Majesty's sloop. Chanticleer, by whom it was 

 presented to me. 



7. Mactra edulis. 

 M. testd subtrigond, tumidd, sublcEvi, Jtilvo-squalidd, intus albd, 

 devitibus lateralibus prominentibus ; long. 2; lat. 2^; poll. 

 Habitat in freto Magellanico (Port Famine). Mus. Brit., nost., 

 Brod, 



This shell was found in great abundance on the flat of sandy 

 mud, which fronts the west shore of Port Famine, and proved a 



2 N 2 



