Pvn H,i I'UitlS

82 PECTIXID.E.
Skye ; but although evidently immature,
it differs from
the young of the typical form in being destitute of ribs.
Sars, Lilljeborg, and Malm have taken this species on
different parts of the Scandinavian coasts from Bergen
southwards, and supposed it to be the Pecten subauri-
culata of Montagu.
It does not appear that this or either of the other
species in the present
section is a nest-builder. I have
often dredged living specimens in every stage of growth,
but always found them free. The shell of L. elliptica is
sometimes covered with Foraminifera and Polyzoa : but
this does not prove that they are never enclosed in cases,
because shells of L. hians, taken alive from their nests,
are often thus encrusted.
After much consideration I am satisfied that Mon-
tagu's name of subauriculata ought to be assigned to
the following species and not to the present. His de-
scription and figure evidently apply to the other species,
which occurs in the same locality that he mentions, viz.
the coast of Devon. L. elliptica has not, I believe, been
found south of the Hebrides. Both live together in the
northern part of our seas, as well as on the Scandina-
vian coast. Their distinctive characters will be pointed
out after describing the next species. Forbes and
Hanley united the synonyms
and localities for the two
species ; but their description appears to have been taken
from a specimen of L. elliptica.
3. L. subauricula'ta * } Montagu.
Pecten suhav.riculata, Mont. Test. Brit. Suppl. p. 03,
t. 29. f. 2.
Body milk-white : mantle clothed with about a dozen tubu-
lar clear-white tentacles of different lengths, which are closely
ringed and ciliated : foot white and cylindrical.
* Slightly eared.