Mr. Jeffreys on British Mollusca. 131 



although the tip has been broken since it was taken. This specimen 

 is partly incrusted with Lepralia coccinea, which, besides the northern 

 habitat, first recorded by Miiller in his ' Zoologia Danica,' is only 

 found, according to Busk, on the coasts of Great Britain and Ireland-. 

 Through the kindness of Mr. Lukis, I have examined all the three 

 specimens ; and he has since most obligingly presented me with one 

 of them. Mr. Hanley, to whom I lately mentioned this discovery, 

 thought that the fisherman whom he had employed in dredging 

 (Jean Tussaud) might have palmed the shells as native on Mr. Lukis, 

 and that the specimens came from the coast of Spain ; but this ap- 

 pears to be a mistake. There is therefore, I think, no reasonable 

 doubt as to the admission of this interesting species into the list of 

 British Mollusca. It has been found by M. Martin on the coast of 

 Provence, and is not uncommon in the Mediterranean. 



Mangelia purpurea, var. Philberti, iii. 460. In dredged sand from 

 Guernsey. 



M. cancellata. Fusus cancellatus, J. Sowerby, Min. Conch, 

 t. 525. f. 2. Clavatula cancellata, Wood's Crag. Moll, part 1. 

 p. 61. pi. 7. f. 9. Fusus asperrimus, Brown, 111. Br. Conch, p. 8; 

 pi. vi. f. 2. M. purpurea, var., B. M. iii. 467. . With the last. This 

 beautiful species is quite distinct from any of the varieties of M. 

 purpurea, and approaches nearer in the mode of cancellation to the 

 Pleurotoma reticulatum of Bronn and Philippi. One of Mr. Barlee's 

 specimens from the Shetlands measures f ths of an inch in length. 

 The fossil shells are specifically identical with ours. 



M. scabra. Pleurotoma scabrum, Jeffr. in Ann. N. H. vol. xix. 

 p. 311. M. linearis, var., B. M. iii. 470. Guernsey and Plymouth, 

 withilf. linearis, which is certainly a different species. Mr. M 'Andrew 

 has taken both in the Mediterranean and Norway. I have added a 

 representation of M. scabra at PI. V. fig. 9 a-c. What Forbes and 

 Hanley called the "purple-tipped" variety is this species in a worn 

 and scarcely distinguishable state. 



Gasteropoda Opisthobranchiata. 



Ovula patula, iii. 498. Guernsey (Dr. Lukis & /. G. J.). Mr. 

 Horace Marryat informs me that he took several of these beautiful 

 creatures alive, at a very low tide, off Alcyonia and Sponges from the 

 roof of the famous Gouliot cave in Sark, — the absence of light proba- 

 bly compensating for depth of water, as this species usually inhabits 

 the coralline zone. 



Amphisphyra hyalina, iii. 521. Guernsey (Dr. Lulcis & /. G. J.). 



Bulla dilatata. Hamincea dilatata, Leach, Brit. Moll. p. 43. I 

 have a specimen of this very distinct species from the collection of 

 Mr. J. D. Humphreys mixed with B. hydatis in a tray labelled 

 "Cork Harbour;" and I found a couple of specimens in 1830 on 

 the He de Rhe in the Gulf of Gascony. Mr. M'Andrew has also 

 taken it off the Grand Canary. 



Scaphander lignarius, iii. 536, var. alba. Guernsey (Dr. Lukis). 



Philine punctata, iii. 547. In dredged sand from Guernsey. 



