4. Oncinopus aranea.
De Haan, Faun. Japon., Crust, p. 100, pi. xxix. fig. 2 ( cl $ ), and
pi. II (1839).
Oncinopus neptunus, Adams 8; White, Zool. ‘Samarang, Crust, p. 1,
pi. ii. lig. 1 (1848).
Oncinopus subpellucidus, Stimpson, Proc. Ac. Nat. Sci. Philad. p. 221
(1857) ; Hasivell, Cat. Australian Stalk- and Sessile-eyed Crust, p. 5
(1882).
Oncinopus angulatus, Haswell, Proc. Linn. Soc, N. S. Wales, iv.
p. 433 Q880).
Specimens are in the collection from Port Jackson, 5 -7 fms.
(No. 104), and Port Alolle, 14 fms. (No. 93). Besides the above
specimens the British-Aluseum series includes examples from Port
Jackson (J. Brazier âfc.), from Brisbane AVater, Queensland (Mac-
gillivraij, H.Al.S. ‘ Rattlesnake ’), from the Alindoro Sea {A. Adams,
H.Al.S. ‘ Samarang ’), and from the New Hebrides (J.AIacgillivray).
Oncinoqjus suhptellucidus, Stimpson, from Port Jackson, only differs
(according to its author) from 0. neptunus in the somewhat smaller
and slenderer terminal and penultimate joints of the posterior legs,
and can scarcely be regarded as distinct. Oncinopus araneus of
De Haan (the species on which the genus was originally founded)
was regarded by Adams and AA*hito as distinct from 0. neptunus, on
account of the much shorter legs, more deeply-incised front, with
more angulated lobes ; bnt there is an adult specimen from Port
Jackson, in Dr. Coppinger’s collection, in which the legs are only
twice as long as the carapace, and quite as robust as in De Haan’s
figure of 0. araneus; and in a male from Brisbane Water, Queensland,
in the Aluseum collection, the chelipedes have their palms
dilated, ju st as in the Japanese species. In consideration of the
evident variability of the length and robustness of the legs in this
genus, I have considered it necessary to unite all the described
species under De Haan’s original designation, 0. araneus.
5. Menæthius monoceros (Latr.).
A male is in the collection from Port Denison, Queensland, 4 fms.
(No. 111). I have in a previous Report* remarked upon the wide
distribution of this common Oriental species, and for the numerous
synonyma would refer to A. Alilne-Edwards’s report on the Crustacea
of New Caledonia f.
A female received in Dr. Coppinger’s second collection from Prince
of Wales Channel (No. 169) differs widely in its broader, much more
strongly tuberculated carapace from the male from Port Denison ;
in these particulars it closely resembles specimens from the Alauritius
in the British-Aluseum collection. Specimens from Shark Bay, West
Australia (Surgeon Bayner, H.Al.S. ‘ H e ra ld ’) nearly approach the
Alauritius specimens in these particulars.
* Philosopb. Trans. Eoy. Soo. ckviii. p. 4 8 5 ( 1 8 7 9 ) .
t Vide Nouv. Archiv. Mus. Hist. Nat. viii. p. 2 5 2 ( 1 8 7 2 ) .
6. Huenia proteus.
De Haan, Faun. Japan., Cr. p. 95, pi. xxiii. figs. 4, 5 rf (elono-ata),
fig. 6 2 (heráldica), and pi. G (1839); Adams 4 White, Cr. in
Voy. ‘ Samarang,’ p. 21, pi. iv. figs. 4-7 (1848) ; Hasivell, Proc.
Lmn. Soc. N. S. Wales, iv. p. 437 (1880); Cat. Austr. Crust, p. 9
(1882^.
Huenia dehaani, White, Proc. Zool. Soc. p. 223 (1847).
Huenia proteus, var. tenuipe.s, Aáaws A White, Cr. ‘ Samaranq: n 22
pi. iv. fig. 5 (1848). fd F ,
Huenia proteus, vars. elongata and heráldica, Adams ^ White, t. c.
p. 21 (1848).
Among the Crustacea coUected by Dr. Coppinger are an adult male
from Eitzroy Island, Queensland, 10 fms. (No. 113); a male and
female from Port Denison, 4 fms. (No. 122); and a male from
Thursday Island, Torres Straits, 4 -6 fms.
Erom the second collection were retained for the British Aluseum
a considerable series from Thursday Island, 3 -4 fms. (No. 177) a
female from Prince of Wales Channel (No. 142), and four specimens
from AVest Island, Torres Straits, 7 fms.
I f the various species of Huenia mentioned above are rightly
united under the designation H. proteus, it will follow th at there
are but three species, so far as at present known, referable to this
genus—one, H. proteus, ranging (as Air. HasweU has already shown)
from Japan and China, southward through the Philippine Islands to
the coast of Queensland and islands adjacent; another, H. pacifica
Aliers* from the Eiji Islands ; and a third, H. grandidieri, A. Al.-
EdwardsT, from Zanzibar. I t is possible th at a larger series would
show th at H. pacifica is no more than a marked variety of the very
variable IP. proteus; it differs, however, from all the specimens of
th at species I have seen in the form of the rostrum, which is not
only much longer and slenderer, hut also much narrower above at
base.
The other described species of Huenia belong, as I have shown
(t. c. pp. 5-6), to other genera. ’
7. Egeria arachnoides (Bumph.).
Here is referred an adult male from Port Alolle, 14 fms. (93), a
locality already mentioned by Air. HasweU (Cat. p. 12).
_ This specimen presents the characters cited by Air. Haswell (Proc.
Linn. Soc. N. S_. Wales, iv. p. 439) as belonging to the specimens he
refers to Egeria herhstii— e. p. the orbits are widely open above
the eye-peduncles are very short and thick, and there is a spine' at
the distal end of the third joint of the ambulatory legs, which
however, is very small in the two posterior pairs. These characters
can, however, hardly be considered of specific importance; in a
smaUer female from Albany Island, 3 -4 fms., and in several
* Ann. & Mag. Nat. Hist. ser. 5, iv. p. 5, pi. iv. fig. 3 (1879).
+ Ann. Soc. Entom. France, sér. 4, v. p. 143, pi. iv. fig. 2 (18'65).
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