slenderer, the chelæ less swollen toward the base, and armed above
with stronger spinules, which are white, and contrast strongly with
the red ground-colour of the palms. I t is possible, but I do not
think it probable, th at this species is a variety of G. vulgaris ; the
figure of Quoy and Gaimard was originally cited by Al.-Edwards as
synonymous with th a t species ; nor can I be certain th at the distinctions
mentioned exist in Al.-Edwards’s O. vulgaris, not having seen
the types.
Another very small specimen of this genus is in the collection from
Port Alolle (No. 118), which can scarcely he referred with certainty
to any species.
9. Eupagurus compressipes. ( P l a t e X X V III. fig. B.)
The carapace is nearly smooth, moderately dilated at the branchial
regions, with the cervical suture very distinctly defined ; the frontal
margin between the eyes is very little prominent, and there is no
median rostriform projection, and but two small triangular teeth
on the frontal margin, situate one on the outer side of each eye-
peduncle. The eye-peduncles are shorter than the carapace is wide
in front, robust, and have the corneæ somewhat dilated; their
basal scales are dilated a t base, narrow, suhacute, and entire at
apex, with the margins ciliated but not denticulated. Antennulary
fiagella very short. The bases of the antennæ bear a short spine on
their outer margins, which does not reach halfway to the apex of the
eye-peduncles ; articulated with the dilated base of this is a longer
spine, which is serrated on its inner mai’gin, and prolonged above
the bases of the antennæ nearly to the end of the eye-peduncles, on
the inner side and a t the base of which is a small spinule. The
joints of the flagella of the antennæ are setose. The outer maxillipedes
are remote from one another at their bases, and the inner
margins of the ischium-joints are denticulated. The legs are pubescent
; the right chelipede is more robust, but little longer than the
left ; the outer margins of the merus-joints in both chelipedes are
spinulose toward the distal extremities, the carpus spinulose on its
iuner margin and on its upper surface ; the hand in the larger
chelipede is narrow-ovate, and very obscurely spinulose on the
margins and in the middle of its outer surface, the spinules or
granules nearly concealed by the pubescence ; the fingers are rather
shorter than the palm, denticulated on their inner margins, acute at
their apices, and have between them no hiatus when closed ; the
smaller (left) hand is similar, but slenderer. The first and second
ambulatory legs have the joints, except the dactyli, somewhat dilated
and compressed, the merus-joints with a series of spinules on their
anterior margins ; the dactyli longer than the preceding joints,
slender, somewhat compressed and curved, but not contorted. The
acute infero-distal angle of the penultimate joint of the fourth legs is
produced halfway along the inferior margin of the dactylus. The
fifth legs are suhchelate, and the chelæ densely hairy. The male
postahdomen (as well as the female) hears several pairs of filiform
appendages ; the uropoda are asymmetrical ; the terminal segment
is rather deeply notched at its distal end, the lobes denticulated.
Colour (in spirit) a very light orange-pink. Length of carapace of
male about lines (nearly 8 millim.), of right chelipede about 6 |
lines (14 millim.), of second ambulatory leg about 10 lines (21
millim.).
Two specimens were collected at Port Denison, 4 fms. (No. 111).
The larger is a male, the smaller a female with ova.
E. compressipes resembles E. tricarinatus, Stimpson, from Japan,
and E. acantholepis, Stm., from Port Jackson*, in the absence of a
rostrum, but is distinguished from both by the nearly smooth chelæ
and the more dilated joints of the first and second ambulatory legs,
and from the' latter also by the somewhat dilated corneæ of the eyes,
the non-canaliciilate carpi of the chelipedes, &c.
10. Eupagurus kirkii. ( P l a t e X X V III. fig. C.)
In this little species the carapace is scantily hairy, with the
branchial regions moderately dilated, without any indication of a
rostrum, and without lateral teeth, and rounded off at the anterolateral
angles. The terminal postahdominal segment has its margins
minutely spinulose, is rounded on the sides, and without a median
notch. The eye-peduncles are slender, and about as long as the
width of the frontal margin ; corneæ small and not dilated ; ophthalmic
scales small, entire, with suhacute apices. The basal
antennal joint is very short, and has a very small spinule on its
outer margin ; the dorsal aciculum of the following joint is very
slender, and reaches very nearly to the 'apex of the eye-peduncles ;
the flagella nearly naked. The merus-joints of the chelipedes have
a small spinule at the distal ends of their upper margins ; the wrists
are hairy, and spinulose above, with a series of more prominent
spinules along the inner and upper margins ; the larger (right) chela
is ovate, scantily hairy, rather swollen within, externally nearly flat,
with a series'of small spinules along its upper and lower margins,
and with some obscurely indicated granules on its outer surface : the
fingers are shorter than the palm, and have between them a small
hiatus at base when closed ; the lower is granulated externally ; both
are spinulose on their outer, aud toothed on their inner margins.
The second and third legs are of moderate length, hairy and smooth,
without spines or tubercles ; the dactyli a trifle shorter than the
preceding joints; the fourth legs are short and imperfectly suhchelate
(the infero-distal lobe of the penultimate joint being hut
little developed); the fifth legs apparently not subchelate, the
dactyli clothed with long hairs. The uropoda are, as usual, asymmetrical
; the rami with a scabrous pad on their outer surfaces.
Colour (in spirit) pinkish white. Length of carapace about 3 | lines
(about 7-5 millim.), of larger chelipede about 6 | lines (1 3 i millim.),
of left ambulatory leg of first pair about 7 lines (15 millim.).
A single male was ohtained in the Arafura Sea (32-36 fms.).
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