EUGYEA AEENOSA. 71 



eminences, formed of a double spiral, each of delicate 

 vessels, meeting at the apex and giving the sac a 

 festooned appearance. Oral lamina extending below 

 the month, smooth, wide at the middle and narrowing 

 above and below. Reproductive organs single, confined 

 to the right side. 



Diameter three quarters of an inch. 



Hb. Deepisli water, in sand and mud. 



ENGLAND. Cullercoats and Newbiggin, Northumb. 

 (Alder 4* Hancock [1848]). [Northumb., Durham, 

 and Dogger Bank (Alder, 1865). Ilfracombe, Devon 

 (Lewes, 1858). Falmouth, Cornwall (Cocks, 1849).] 



WALES. [Tenby (Lewes, 1858).] 



SCOTLAND. [St. Andrews, Fife (Mclntosli, 1867).] 

 West coast [Clyde and Hebrides] (Forbes [1848]). 

 [Lochmaddy, North Uist, Outer Hebrides (Mclntosh, 

 1866).] Shetland, in 40 fathoms (Norman), [in 20-80 

 fathoms (Forbes, 1850). Common on the haddock- 

 gronnds between Whalsey and Feltar ; east of Balta; 

 St. Magnus Bay, &c. ; Shetland (Norman, 1868)]. 



IRE LAND. [Ballyholme Bay, Belfast Lough, dredged 

 from pure sand at about 6 fathoms depth, 1846 

 (Thompson, 1856), and Strangford Lough, from 7-20 

 fathoms (Dickie, 1857), Down.] 



First recordForbes, 1848 [coll. Thompson, 1846]. 



This interesting species is far from being rare on the 

 Northumberland coast, where it is frequently brought 

 to shore in considerable numbers on the fishermen's 

 lines, usually hooked singly ; and occasionally they are 

 in such abundance on a single line as to indicate that 

 they must thickly stud the bottom of the sea in certain 

 localities. They are always from a considerable depth 

 and from a muddy or sandy bottom, and generally 

 associated with Molgida conchilega. The fishermen 

 call them Nelson's bullets, from their rotund form ; 

 but why Nelson's in particular is not very obvious, 

 unless par excellence, he is the type of marine warfare. 



Molgula tubulosa of Forbes, is, in ' British Mollusca,' 



