tentacula four, of which the first pair are very long, setiform, and extended forward; the other
pair are remote, short, and erect: eyes two, small and black, situated at the base of the
hindmost tentacula: on the right side near the eyes is a cluster of short cirri; and at a little
distance from these commence four series of longer ones, of a pink colour, spotted with white,
standing transversely, and extending down the sides; these cover the middle of the animal;
the other parts are yellowish-white tinged with pink about the eyes. Length half an inch/’
(21) Eolis Drommondi.
We found a remarkable variety of this species in the Menai Straits, opposite Bangor,
with the branchiae of a sage-green colour : of this, two specimens occurred. Others in the
same locality had these organs of a brownish-drab. E. Drummondi is subject to great variety
of tint in the colour of the branchiae, but so great a variation of colour as from a reddish to a
greenish hue we were not prepared to expect.
(22) Eolis Landsburgii.
? Boris pedata, Mont., in Linn. Trans., v. 11, p. 197, pi. 14, fig. 2.
Additional Habitats. Hilbre Island, Mouth of the Dee, I. Byerley, Esq. Exmouth, Rev. T. Hincks.
Island in Menai Straits, Miss Hughes; also dredged in the Straits, J. A. Burghead, Elgin, Geo.
Murray, Esq.
An opportunity of seeing fine full-grown specimens of this lovely Eolis enables us to say
that our drawing represents the species in a rather immature state. The branchiae in adult
specimens are longer and rather more numerous than there represented. The animal attains
the size of nearly half an inch. We are now disposed to think that this species may possibly
be the Boris pedata of Montagu, whose description agrees pretty well with our animal, though
the figure is anything but a good representation of it.
(23) Eolis alba.
Eolis alba, Loven, Iud. Moll. Scand., p. 8.
Additional Habitats. Falmouth, W. P. Cocks, Esq. Ardrossan and Saltcoats, Ayrshire; and
Lamlash Bay, Arran, J. A. Burghead, Elgin, G. Murray, Esq.
This species is liable to curious variations of colour, becoming sometimes so dark as
almost to render the specific name inappropriate : the prevailing colour, however, is usually
white. In June, 1847, we got, among the rocks on the north side of Lamlash Bay, two remarkable
varieties. The branchiae in one were darkish purple-brown with white spots, and
in the other yellowish-brown, also spotted with white; in both the body had transverse bands
of brown at the sides, which were united in pairs dorsally, so as to form loops round the base
of each cluster of branchiae : a dark brown band extended across the back opposite the first
row of papillae. The oral tentacles were not much longer than the dorsal pair, and these
latter had two bulbous swellings, the one half-way up the dark part of the tentacle, and the
other at the top of iL The largest individual measured three quarters of-an inch; it had one
ix
of the papillae branched. On the shore of the Holy Isle in the same bay, we got a specimen
seven eighths of an inch long, entirely white ; and two others, smaller, which had the branchiae
yellowish, spotted with brown, and brown rings at the tips : the body was marked with brown
bands similar to those described above.
Professor Loven has found Eolis alba in Norway. He remarks of it, “ Branchiae in meis
saepius testaceae, niveo-punctatae, sed inedia decolorantur.”
(24) E olis carnea.
In 1843, we received a specimen of this Eolis in spirits from Mrs. Wyatt, of Torquay,
who had dredged it in Salcombe Bay. We deferred publishing it, hoping to have met with
it in a living state, but in this we have been disappointed. The species is interesting on
account of its close relationship to E. alba, having the same arrangement of the branchiae in
imperfect clusters or double rows anteriorly, as well as the dark dorsal tentacles. We could
not ascertain that these latter had the bulbous swelling, but this character usually disappears
in spirits. The tongue has a single plain spine in each row as in E. alba. The specimen
examined when recent (in spirits) had the body of a pale rose- or flesh-colour, long and slender.
The branchiae were rose-red, rather conical, and set in seven clusters, the three anterior ones
containing two rows each (five or six papillae in each row); the others were in single series.
The first cluster approached close to the dorsal tentacles. These tentacles were plain, slightly
conical, dark olive-brown, or nearly black, paler above, and approximating at the base. The
oral tentacles were about the same length as the dorsal pair, transparent white, tapering to a
point. Foot slightly bilobed in front, the angles produced into very long tentacular points at
the sides.
We are now inclined to refer the Eolidia Cuvierii of Johnston, found in Berwick Bay
(Ann. Nat. Hist., v. 1, p. 120, pi. 3, figs. 9—11), to this species, which has the branchiae arranged
much in the same manner. The dorsal tentacles, however, are not so dark-coloured; they
are called “ olivaceous with yellowish tips.” However the case maybe, we do not think that
Dr. Johnstons animal can be the “ Eolide” described by Cuvier (Eolis Cuvieri, Lam.); a
species that it would be difficult now to identify, and which has been much misunderstood by
French writers.
In this state of uncertainty concerning the Berwick specimen, we do not feel inclined to
give R a separate place in our list. The ^Eolis Cuvierii of Macgillivray appears to be something
different that we cannot make out.
(25) Eolis inornata.
Eolis inornata, Aid. and Hanc., in Ann. Nat. Hist., v. 16, p. 315.
Hab. Under a stone near low-water mark, Torquay, J. A.
Body rather less than half an inch in length, ovate, and rather flattish, pale fawn-coloured,
or nearly white. Dorsal tentacles short and stout, yellowish, slightly wrinkled; eyes large
and conspicuous at their posterior base. Oral tentacles short, white, about equal in length
to the dorsal pair. Branchiae cylindrical, tapering a little and obtusely pointed, of a dull