Records of Dredging. 



593 



striated, but not 

 the outer lip 



is 



Eschniht of Copenhagen. The B. Hum- 

 phvey sidnum of Bennet has, perhaps, better 

 claims to a specific rank. Fleming has 

 referred the latter to Lamarck's B. an- 

 glicanum. Is not Lamarck's anglicanum 

 the striatum of Pennant ? I have a Buc- 

 cinum {Jig. 62.), brought from Zetland 

 (where it is frequent in very deep water), 

 by my friend Mr. E. Charlton, which has 

 as good claims to specific distinction as 

 most of the so-called species. It is near- 

 est in its relations to the B. fusiforme of 

 Broderip, which it resembles in shape ; but 

 is still more produced, having 9 rounded 

 whorls tapering to a fine point, and spirally 

 crossed by any transverse ribs, or stria? ; 

 slightly patulous, and the interior of the 

 shell is tinged with purple : the largest specimen I have seen 

 was about 3 in. long. According to the views on species 

 generally entertained by conchologists, it is decidedly dis- 

 tinct, and might be named B. zetlandicum ; but I am in- 

 clined to look upon the B. undatum, striatum, carinatum, 

 fusiforme, and my Zetland shell, as one species, presenting so 

 many permanent varieties ; viewing the animal as the only 

 ground for specific character, where the shells are so nearly 

 allied as the above. B. acuminatum of Broderip appears dis- 

 tinct, and links the B. undatum with the B. glaciale. Is there 

 any description of the animal of the latter published ? 



Of the genus Lima I have dredged up three kinds, appa- 

 rently distinct ; two of them certainly so ; but, from the inde- 

 finite nature of the descriptions of the British species, it is 



almost impossible to name 

 them with any degree ^of 

 certainty. The first of my 

 shells (Jig. 63.) is rather a 

 large species, being 1 \ in. 

 long, having the shell 

 strong, with rough longi- 

 tudinal ribs, crossed by 

 lines and furrows of 

 growth ; the hinge is ob- 

 lique, and the shell gapes 

 widely on both sides, the 

 margins touching only for a small space in front ; the animal 

 has very long filaments of a bright red colour, and is much 

 too large for the shell, as is also the case with the two other 



