dirty whitish, black-veined in the wrinkles (? stains only). Mantle-
lobes modoratelj' largo, commencing in front some distance behind
tho posterior tentacles and terminating a little in advance of the
cauda. Anterior tentacles large, compressed, much dilated. Posterior
tentacles large, cylindrical, with the apical slit not extending
halfway down the outer side, placed a little nearer the oral tentacles
than the beginning of the mantle-lobes. Eyes minute, situated
near the outer anterior base of tentacles.
Shell very thin, straw-colour, 30 millim. long and 27 broad.
Animal about three inches in length in its contracted state.
Hah. Port Denison, Queensland.
This species is remarkable for the large size of the oral tentacles.
131. Stylocheilus, sp.
Hah. Thursday Island, Torres Straits, 4 -5 fms., on a sandy
bottom.
There are four specimens from the above locality evidently belonging
to the Styloelieilus, which, having lost all colour and being
in rather poor condition, I refrain from describing. One of them,
the smallest, differs from the rest in having a decidedly larger
branchial opening in the mantle, which is not, I am of opinion, due
to any contraction in the other three. All present a feature not
mentioned by Gould iu his description of the genus, viz. a duplicature
of the anterior margin of the foot. In the figure, however, of S.
querciniis (Wilkes’s Explor. Exped., Atlas, Mollusca, pi. 16. f. 271)
this peculiarity is indicated, of which a better idea is given in
Savigny’s figure of Aplysia suvignyiana, Atlas to the Explorations
in Egypt, pi. 2. figs. 2 2, also copied in P an g ’s Hist. Nat. des
Aplysiens, pi. 20. f. 2.
132. Miamira nohilis.
Bergh, Journ. Mus.^ Godeffroy, 1874, Ileftvi. pi. 1. fig. 5; 1875, Heft
viii. p. 53, pi. 8. figs. 1-30, pi. 9. figs. 1-4 ; Semper, Reisen Philip-
pinen, Bd. ii. pi. 33. fig. 2; Bergh in Semper’s Reisen, vol. ii
Heft 10, p. 411.
Hah. Port Denison, Queensland, 4 fms. (Coppinger).
Only a single specimen of this beautiful Nudibranch was obtained
by Dr. Coppinger. I t still retains in spirit the vivid orange spots,
which in time will probably disappear. Dr. Semper found this
species at the Philippines, and it has also been met with at Amboina
(Alartens) and the Samoa Islands.
133. Ceratosoma tenue.
Abraham, Ann. 4- Mag. Hat. Hist. 1876, vol. xviii. p. 141, pi. 7.
figs. 5-5 b ; Proc. Zool. Soc. 1877, p. 234.
Hab. Thursday Island, Torres Straits, 4 -5 fms.
This species and C. caledonicum of Fischer (Journ. de Conch.
1876, p. 92) may eventually prove to be identical, in which case
the latter name should be retained, having a few months’ priority of
publication.
The single specimen from Torres Straits agrees with the excellent
description given by Mr. Abraham except in respect of the greater
proportional length of the caudal portion of the body, which equals
half the entire length of the animal, and the greater breadth of the
foot, two differences probably due to the various degrees of contraction
at death.
134. Doris (Platydoris) infrapicta.
Body flattened, elongate oval. Mantle softish, fleshy, finely
granular above, smooth beneath the ividely expanded border. Foot
broad, rounded at both ends, widely spreading all round except
beneath the mouth, where it is more narrowly expanded, and has a
narrow lamina above, which is notched in the middle and is produced
a little in advance of the edge of the foot itself. Oral tentacles
compressed, curving forward. Phinophores short, with comparatively
few lamina;, pointed at the apex. Branchial plume six-
lobed, each lobe trifúrcate above, surrounding the small central
yellow six (?)-lobed anus.
Colour pale buff, variegated with a dirty brownish tint above.
Beneath, the mantle-expansion is copiously stained and blptched with
dark chocolate-brown, • except near the border, which is pale and
unspotted. Foot spotted with the same colour, especially towards
the centre, the margin being pale and destitute of markings.
Length 50 millim., width 3 2 ; foot 43 long, 18 broad.
Ilah, Queensland, 4 fms.
This species appears to be closely related to D, inframaculata^
Abraham, from Amboina. I t differs in coloration somewhat, the
greater width of the foot, Avhich is not “ truncate in front,” the
softer character of the mantle, and the coarser granulation of its
dorsal surface.
135. Plocamophorus insignis. (P la te AH. figs. L, L 1.)
Body elongate, ending posteriorly in a laterally compressed and
obliquely truncate termination ; (in spirit) of a pale colour, dotted
with black along the sides close to the foot, on the oblique carínate
margin of the posterior end, and on the sides of this caudal extremity,
which also exhibits a few small rounded tubercles. Branchial
plume a little posterior to the middle of the back, trilobed, one lobe
central, anterior, the other two lateral, one on each side, bifurcate,
all branching above. Anus stellate, situated between tho lateral
lobes. On the hack, a little behind the branchise, is situated a single
black-spotted elongate papilla on each side. Foot elongate, with a
double margin in front, finely tuberculatcd in the groove between
the two edges, much attenuating posteriorly. Head with the
frontal margin black-dotted, bearing a fringe of about eight slender
prolongations; beneath this and between it and the mouth is a
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