joint longitudinally canaliculated, and the merus truncated at its
distal end, and with the antero-external angle little prominent.
The chelipedes are moderately ro b u st; merus or arm very short,
trigonous; carpus or wrist nearly as large as the merus, with a
rather prominent tooth on its inner margin, and its upper and outer
surfaces marked with raised reticulating or anastomosing granulated
lines or ridges ; palm longer than the wrist, with somewhat similar
sculpture on the upper surface, which has also two longitudinal depressions
; on the outer surface the granulations (on the larger
chelipede) are almost wholly obliterated, but in the smaller chelipede
(which is the left in the two males I have examined) they
cover the whole of the outor surface ; the inner surface of the palms
are smooth; fingers purplish brown, the coloration not extending
over any part of the inner or outer surface of the palms. The
mobile finger is canaliculated above, and has a very prominent tooth
on its inner margin at base. Ambulatory legs of moderate length ;
merus-joints nearly smooth, but with their upper margins thin-
edged and almost carinated ; the two following joints are roughened,
and marked on the sides with longitudinal depressions ; terminal
joints clothed with a dense velvety pubescence. The colour (of specimens
preserved in spirit) is a pale yellowish brown. Length of
the carapace of the largest specimen (a male) about lines
(16 millim.), greatest width nearly 11 lines (23 millim.).
A male and female are in the collection from Port Alolle, obtained
on the sandy beach (Nos. 95, 103), and a male of larger size from
Port Curtis, 7-19 fms. (No. 85). In the female the outer surfaces
of both palms are vermiculated, and the fingers are pale purplish.
A male is in the British-Aluseum collection from Pacing Island,
Port Curtis, ohtained under stones at low water (J. Macgillivraij,
H.Al.S. ‘Rattlesnake’).
This species has much the aspect of a Leptodius, and is distinguished
from all with which I am acquainted by the armature of
the carapace and chelipedes. I t bears a very considerable resemblance
to a species from Alarseilles in the Aluseum collection ( Coll.
Leach), referred by Leach, hut wrongly, to Xantho poressa of Olivi*,
and designated by AA^hite (in manuscript) X. confusus, in which,
however, there are no transverse granulated lines on the carapace,
which is punctulated anteriorly. I have much pleasure in naming
it after the late Air. Alacgillivray, by whom a specimen was collected,
and by whose exertions the carcinological collections of the British
Aluseum have been so much benefited.
X. hirtipes, Al.-Edwards, to which is referred a specimen without
special locality in the Aluseum collection, has some indications of
raised lines upon the carapace, but has a much less prominent
straighter front.
43. Cycloxanthus lineatus, A . AI.-Ediv.
To this species are referred, though with some hesitation, two
* ‘ Zoologia Adriatica,’ p. 48, pi. ii. fig. 3 (1792).
females in the second collection, the one ohtained at Eriday Island,
Torres Straits, 10 fms. (No. 158), and the other in the Arafura Sea,
32-36 fms. (No. 160). These specimens are both of very small
size, one with ova measuring only 2 | lines (5 millim.) in length.
They differ from AI. A. Alilne-Edwards’s description and figure iu
being (in spirit) of a uniform ashy-grey colour, and in having the
surface of the carapace very uneven, well-marked depressions existing
at the back of the cardiac region and in front of each branchial
region; the surface of the body, viewed under the microscope, is
minutely and very closely granulated, but appears smooth to the
naked eye.
Alilne-Edwards’s examples are from New Caledonia and Lifu,
and are much larger, the carapace measuring over half an inch
(13 millim.) in length. The inequalities of the carapace observable
in our specimens may very probably disappear as the animal increases
in size; therefore I do not regard the Australian specimens
as belonging to a distinct species.
Cycloxanthus piunctatus, Haswell (Catalogue, p. 50), from the
Paramatta River, seems to be a very distinct form, to judge from
the brief diagnosis*.
44. Carpilodes venosus, M.-Edw.
A female from Port Alolle (No. 95), obtained on the beach, belongs
here.
This specimen (preserved in spirit) is of a deep purplish-red hue,
and has the sxdd defining the areolets of the carapace very distinctly
defined, and altogether corresponding in arrangement with_ the
same sulci in De Haan’s figure of his 0. obtusus, which is, I believe,
a mere variety of this species. The length of this example is a
little over 7 lines (15 millim.), and its greatest width nearly 1 inch
(25 millim.).
In a larger female example from the Japanese seas, presented to
the British Aluseum by Capt. H. C. St. John, R.N., and received
since the publication of my report on the Podophthalmia of his
collection—length of carapace over 10 lines (22 miUim.), width
1 in. 5 lines (36 millim.)—the colour (in spirit) is a lighter orange- A . X X I . t J XXIX ' - 'U \ X /
red, and several of the sulci of the carapace less distinctly defined
or partially obliterated; this is no doubt due to the greater age of
the specimen.
Stimpsont mentions the occurrence of C. venosus (as Liomera
obtusa) at Ousima Island in the Japanese seas; and there is a
specimen in the British-AInseum collection from the Philippine
Islands, Corregidor (Cuming), designated C. venosus, and others from
Sir C. Hardy’s Island, dredged in 11 fms. (J. B. Jukes), &o. Its
range extends from the Alauritius to New Caledonia.
* I t may be useful here to mention that Panopeus acutidens, Haswell (t. c.
p 51 pi. i fig. 2), is scarcely to be regarded as distinct from Epixanthus den-
ta tu s (Panopeus dentatus, Ad. & White), of which there are authentic specimens
in the British-Museum collection.
t Proc. Ac. Nat. Sci. Phil. p. 31 (1858).
. . f
t"
■ r I
I > ' If 11 I ,