ODOSTOMIA, io 
Dhu and Silvercraigs, Lochfyne. This species is found on 
scallops which are perfectly free from the encrusting sponge, 
on which it was supposed to feed; the attraction, in all 
likelihood, lies in the foecal matter, as suggested by Mr. 
Jeffreys. 
British distribution—Throughout our seas, one of the 
commoner species. Mr. Jeffreys states that it is especially 
plentiful off Plymouth. 
Foreign localities. — Norway and Sweden (Lovén, 
M‘Andrew, and others), France (Cailliaud), Spain 
(M‘ Andrew), Mediterranean and Adriatic (Jeffreys and 
others), Aigean (Spratt). 
* Odostomia conoidea, Brocchi. 
Turbo conoideus, Brocchi ; Odostomia plicata, Searles Wood ; 
Turbonilla plicata, Lovén ; Alvania Cranchiana, Leach. 
Habitat—In muddy sand, 15 to 40 fathoms, not un- 
common, but most frequently obtained in a dead state. I 
have taken it outside the Tan Spit, and off Shellbole 
Bay, Cumbrae; also at Bogany and Ascog, Bute; and off 
Silvercraigs, Loch Fyne. 
British distribution.—The type appears to be confined to 
the western and northern coasts of Scotland, and is rather 
a common species. The variety australis extends to the 
southern and western coasts of England. On the east 
coast Messrs. Leckenby and Marshall have taken the 
type on the Dogger Bank, and Mr. Alder catalogues 
under the name O. unidentata (of Montagu), a shell trom 
Tynemouth, which his synonymy indicates as belonging to 
the present species. 
Foreign localities—From Hammerfest (Sa7s), through- 
out Western Europe, and as far as Mogador and the Canary 
Islands (M‘Andrew), It extends throughout the Mediter- 
ranean to the Aigean (Spratt and Forbes), 
Odostomia umbilicaris, Malm. 
Turbonilla umbilicaris, Malm. 
Habitat—aA single dead specimen, in 15 fathoms, outside 
the Tan Spit, Cumbrae, in muddy sand, mixed with dead 
nullipore. Mr. Barlee has taken this species in Loch 
Fyne. 
British distribution.—Coast of Devon and Cornwall, 
G 
