CYLICHNA. 97 
fathoms ; locally abundant on the Tan Spit, Cumbrae, where 
in one haul I took over 30 live specimens. Excepting on this 
occasion I have never met with even a single live individual 
of this species, although I must have often dr edged within a 
very short distance of the spot where so many were got. 
Mr. Robertson, who has dredged this ground for very many 
years, has never met with this species there. It has been 
taken at Lamlash by Dr. Landsborough and Mr. Alder, and 
in Loch Fyne by Mr. Robertson and others. 
British distribution.—-West, north, and north-east of 
Scotland; all round Ireland, and on the Cornish coast. 
Foreign localities—Throughout western Europe from 
Norway (Lilljebory) to Gibraltar (M‘Andrew); all the 
Mediterranean and Adriatic seas, and as far as the Algean 
(Forbes). M‘Andrew records two specimens of this shell 
from the Gulf of Suez, taken during a dredging excursion 
in 1869. 
Cylichna nitidula, Lovén. 
Habitut—Scarce in sandy and shelly mud, 10 or 12 
fathoms, on the Tan Spit, Cumbrae—dead specimens only. 
It has been taken in Loch Fyne by Mr. Jeffreys and Mr. 
Barlee. 
British distribution —Very local. It is noted from the 
Antrim coast, Shetland, Aberdeenshire, Berwick Bay, and 
the Dogger Bank. 
Foreign localities—N orway and Sweden (Lovén, Jeffreys, 
and others), northern and western France (De Folin, and 
others). 
Cylichna umbilicata, Montagu. 
Bulla winbilicata, Montagu ; Volvaria subeylindrica, Brown. 
Habitat—On the Tan Spit, Cumbrae, and occasionally 
throughout the whole district ; usually in muddy sand in 10 
to 20 fathoms. Dead specimens are rather common, but | 
have never taken the species alive. Mr. Norman records it 
as rare in Lamlash Bay. 
British distribution.—Apparently throughout most of 
our western seas from Cornwall to Shetland, and all round 
Treland. On the east coast it occurs on the Dogger Bank 
(Leckenby and Marshall), and on the coasts of Northumber- 
land and Durham (A /de7’). 
Foreign localities—In Europe from Norway (Sa7's, and 
others), throughout the Atlantic coast to Gibraltar, both 
sides of the Mediterranean, the Adriatic, and as far as the 
K 
