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A. aberrata is probably very closely related to the species that was described by G. O. Sars,
1887, p. 28, under the name of A. elliptica Philippi. This species is stated by this writer parily to
have been caught at Messina (thus near Palermo, the type locality for this species of PHILIPPl’s*)
and partly at Cape Breton
in the Bay of Biscay. There
does not seem to be füll
identity, however, as the
species described by G. O.
Sars has, according to pi.
IV, fig. 1, numerous (23)
posterior ventral bristles on
the sixth limb and thirteen
bristles on the seventh
limb. It does not seem
impossible, however, that
these and some other rather
small differences may be
due to the somewhat
superficial way in which G. O.
SARS has described and
reproduced this form. In
order to veri fy these
Statements of G. O. Sars’s I wrote
to this author and asked
for the type specimen of his
re-description. In answer to
my request Professor Sars
informed me that all his
specimens of this species had
unfortunately been lost,
ap-parently without anyhope of
their ever being found again.
Por the possibili ty
of identifying A. PHILIPPl’s
species A. elliptica see Fig. XCVII. — Asterope aberrata n. sp.. Ç. I’,. Fifth limb: 2or, X.
above, p. 468.
G. S. BRADY and A. M. NORMAN describe, 1896, p. 634, under the name of A. elliptica
A. Philippi, a form from Valentia, Ireland, i. e. from a locality not far from the type locality
for the species described by me above. This form is also certainly very closely related to this
species of mine, but differs so essentially from it in the shape of the shell (pl. LII, figs. 16 and 17)
* G. O. Saus states. 1887, p. 80, by an oversighl, lhat the type locality was the Bay <>1 Naples.
Relations
to other species.
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