rather stout; but in this species five or six of the extreme lateral spines are minutely pectinated,
which is not the case in D. tuberculata, nor in D. Johnstoni, though in the latter the spines are
also of two kinds.
(3) Doris repanda.
Doris lavis, Flem., Brit. Anim., p. 282.
obvelata, Loven, Ind. Moll. Scand., p. 4.
We have been favoured by Dr. Fleming with the examination of an original specimen of
his D. leevis preserved in spirits, from which we can say with certainty that it is synonymous
with our D. repanda. The D. Items of Muller is a very distinct species, of which we have also
had the opportunity of examining a specimen, by the favour of Dr. Loven. The latter species
has not yet been found in Britain, though it is not improbable that it may inhabit our Northern
shores. Dr. Loven considers that our D. repanda is the D. obvelata of Muller, which may
possibly be the case, but his description and figure are not sufficiently accurate to enable us
to determine this. His figure represents the tubercles larger than in our species, and the cloak
differently coloured, and it wants the characteristic opaque white or sulphur-coloured spots
along the sides.
(4) D oris muricata.
Mr. Thompson, of Belfast, records the discovery of this species in Ireland, in the ‘Annals
of Natural History/ v. 5, p. 86. He there says,— “ I have not unfrequently taken this minute
species when (accompanied by Mr. Hyndman) dredging in the Loughs of Strangford and
Belfast; it was generally adhering to the leaves of tangle {Laminaria digitata). Muller
describes it as 5 lines long by 3 broad: my specimens were all even under that size.
The D. muricata has hitherto been unnoticed in the British seas.” Mr. Thompson afterwards
kindly sent us specimens in spirits. In that state they resembled very much our D. aspera,
but appeared to have the tubercles rather larger and the cloak a little more rounded. So
much, however, depends upon the state of contraction and other circumstances, that it is
difficult to give an opinion on critical points from spirit-specimens. The liver, as seen through
the foot, appears much larger than in D. aspera, and in this respect comes nearer to
D. proximo,, but the tongue shows that it is more nearly related to the former than to the
latter.
(5) Doris Ulidiana.
Doris Ulidiana, Thomp., in Ann. Nat. Hist., v. 15, p. 312.
“ Length from spirits \ inch, breadth \ inch; ovate-oblong, rather straight at the
sides, depressed, of a uniform pale yellow, the intestines appearing through the skin of a dark
colour. Cloak not extending much beyond the foot, rough with spicula, and covered with large,
unequal, obtuse tubercles; the spicula collected in bundles in the tubercles and radiating at
their base. Tentacula long and whitish, lamellated, without sheaths; the edges of the
apertures plain. Branchiae consisting of eleven beautifully white pinnated plumes, set in a
semicircle round the anus. Foot rather broad. Veil above the mouth semicircular.”-
iii
“ On the 17th February, 1840,1 procured three specimens of this Doris among oysters
brought to Belfast Market from the neighbouring coast of Down or Antrim.” W. Thompson.
The above description, drawn up by ourselves from the specimens in spirits, with the
addition of Mr. Thompson’s notes from the living animal, was published in the ‘Annals of
Natural History’ for May, 1845. The species comes very near to D. diapliana, from which it
differs a little in colour, in being rather more elongated, in having a larger veil, and more
especially in the size of the liver, that of D. diajphana being larger, blacker, and reaching
further forward in the body than in this species. The mouth too is larger, and is almost in
the centre of the veil.
(,6) Doris, pusilla.
Mr. George Murray informs us that he has got two specimens of this Doris at Burghead,
on the coast of Elgin.
(7) Doris subqtjadrata.
A specimen of this rare species was got at Hilbre Island, Mouth of the Dee, in April,
1851, by Mr. I. Byerley, of Upton, Birkenhead.
(8) ^Egirus ptjnctiluqens.
A young individual of this species has been got at Burghead, Elgin, by Mr. Murray;
the only one yet found on the eastern coast of Britain.
(9) Thecacera pennigera.
Doris pennigera, Mont., in Linn. Trans., v. 11, p. 17, pi. 4, fig. 5.
“ Body oblong, acuminated almost to a point at the posterior extremity, covered with
small spots of bright orange and black on all the upper parts; the black markings are smallest,
and appear radiated under a lens: the anterior end is sub-bifid, extending each side into an
angular lobe: tentacula two, sub-clavated and perfoliated; these originate on the upper par
some distance from the anterior end, and each is nearly surrounded by a sort of bipartite wing;
the vent is on the back, furnished with five branched appendages that partly surround it on
the fore part, and two large bifid peduncles behind. Length half an inch.
“ One specimen only of this singular and gaudy animal has occurred: it was taken at
low-water on the rocks at Milton.” Montagu, loc. cit.
While these sheets are going through the press, and since the Synopsis was printed off,
we have obtained a specimen of this interesting species, through the kindness of Mr. W.
Thompson, of Weymouth, which has enabled us to give figures of it in an additional plate.
(Fam. I, Plate 21 a.)