Pvn H,i I'UitlS

TELLIXA. 385
south and west of England, Wales, Ireland, and west
of Scotland, from 7 to 15 fathoms; Dunbar (Laskey).
The last-mentioned locality has been designated the
" hotbed " of our spurious Mollusca : it is notorious
that much confusion originated in species having been
formerly stated to be found there, which are now ascertained
to belong only to tropical seas. Fossil in the
Kyles of Bute (Crosskey); Sicily and Tarento (Phi-
to have been found in the
lippi) . It does not appear
north of Europe ;
but its southern range is very exten-
sive, from the north of France to the iEgean (where
it is littoral), Madeira, the Canary Isles, and Azores, at
various depths not exceeding 49 fathoms.
I have stated in the particulars of T. tenuis my reasons
for considering that species the T. incarnata of Linne.
He described it as a Swedish shell, but erroneously referred
to Lister's figure of Psammobia Fe?Tdensis. The
present shell is not known as Scandinavian, and is at least
three times the size stated by Linne for his T. incarnata.
I believe the species which I have last described is
partly the T.planata of the ' Mus. Ulr. Reg/
and e
Syst.
Nat.'; but as the latter name is now used for a larger,
although similar, Mediterranean shell, it may prevent
confusion by continuing the old name (squalida) pro-
posed by Solancler and adopted by Pulteney. It would
require a vivid imagination to suppose that this can be
the T. depressa of Gmelin, the meagre description of
which was taken verbatim from Gualtieri. Our shell has
certainly none of the colours there indicated, "nunc
Candida, nunc purpurascente, nunc subrosea." Gual-
tieri's wretched figures appear to represent two different
species ; and no habitat is given. Poli called the present
species T. incarnata, and Donovan T. depressa.