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294 COLLECTIONS FROM MELANESIA.
I regard tho Anchistia grandis of Stimpson, from Ousima*, as
synonymous with Anchistia petitthouarsi.
The differences in the proportions of the second legs in our specimen
and th at described by Air. Stimpson may perhaps be due to
sex. Stimpson does not mention the number of the teeth (if any)
on the inferior margin of the rostrum in his example ; but as he
says “ A . ensifronti affinis,” it may be presumed that, as in Dana’s
species, there are three teeth on the inferior margin of the rostrum,
and also th a t there is, as in th at species, a supraocular spine.
Anchistia incequimana of Heller is, according to Kossmannf, also
synonymous with H.yDeitfi/ioitunsi. I t is remarkable th at neither in
the figure of Savigny, nor in Heller’s long description of A . inæqui-
mana in the ‘ Beiträge zur Crustaceen-Pauna des roth en Aleeres,’
can I find any indication of the supraocular spine ; so th at our specimen
may after all belong to a distinct species.
»
1 4 . Coralliocaris ? tridentata. ( P l a t e X X XII. fig. C.)
The body is rounded above and not compressed ; the anterior
margin of the carapace bears a strong spine outside of the eye-
peduncles and above the basal antennal scale. The rostrum is short,
not reaching to the end of the peduncles, and has three spiniform
teeth on its upper margin ; its lower margin is entire ; the apex curves
gently upward and is acute. The segments of the postahdomen
are without spinules ; the terminal segment has four small mobile
spinules on its upper surface near the lateral margins, and the
somewhat rounded apex is tipped with a few short setæ. The eyes
are rather short, robust, and reach about halfway to the apex of
the rostrum. The antepenultimate joint of the peduncles of the
antennules is about as long as the two following taken together ;
these are short and of equal length ; the longer flagellum is broken
in the single specimen examined, the shorter is slightly bipartite at
its distal end. The basal antennal scales are shorter than the
peduncles of the antennules, rounded and ciliated at the distal ends,
and with a very small spinule on the outer margin. The antepenultimate
joint of the outer maxillipedes is very little longer and
broader than the penultimate joint, which about equals the terminal
joint in length. The anterior legs (the left only is perfect) are very
slender ; the wrist much exceeds the hand in length, the slender
palm about equals the fingers. Of the second legs also only the
left is perfect ; this limb has the joints smooth and unarmed, the
merus longer than the carpus, which is less than half the length of
the palm, which is much shrivelled, but its lower margin appears to
have been carinated ; the fingers are less than half the length of
the palm, acute at their apices, and without teeth on their inner
margins. The third legs are robust, with the merus and penultimate
joints compressed ; the dactyl minute, curved, and with a
minute tooth on the lower margin. The following legs are imperfect.
* Proc. Aoad. Nat. Sci. Philad. p. 39 (I860),
t Zool. Ergehn. Eels. roth. Meer. ii. p. 83 (1880).
CRUSTACEA.
The rami of the uropoda are somewhat longer than the terminal
segment, ovate, the outer somewhat broader than the inner. ^ Colour
(in spirit) purplish brown. Length about 7 | lines (16 millim.).
The single specimen, a female with ova, was obtained at Thursday
Island, 4 -6 fms. (Xo. 130), and is in very imperfect condition, the
right chelipede of the first and second pair and most of the ambulatory
legs being deficient. Nevertheless the species may be distinguished
from all described by Dana, Heller, or Stimpson by the
different dentition of the rostrum. On account of the minnte dactyl
with its inferior tooth I refer this species to Goralliocarts ; hnt it
differs from the typical species in the slenderer maxillipedes and
shorter antennal scales.
15. Palæmon (Leander) intermedius, Stimpson.
Three specimens, two of which are females with ova, were obtained
at Port Jackson, 0 -5 fms. (first collection). Stimpson’s specimens
were also from Port Jackson.
Specimens are in the British-Aluseum collection from King
George’s Sound, S.W. Australia, and from Ovalau, Piji group
(F. M. Bayner, H.Al.S. ‘ Herald ’), and also from Tasmania.
This species usually has eight teeth above and five below, exclusive
of the subapical tooth on the rostrum, and more rarely seven
above and four below, as stated by Stimpson. The apex is usnaUy,
but not invariably, bidentate ; in one of the specimens from Port
Alolle the subapical tooth is placed further back on the dorsal
surface of the rostrum, which thus appears simple at its apex.
There is a small spine a t the base of the antennal peduncles outside
of the antennal scale.
I regard the Palæmon (Leander) serenus of Heller*, from Sydney,
as very probably a mere variety of P. intermedius. Air. Haswell
(Cat. p. 195) retains the two species as distinct ; bnt he appears to
have seen no specimens, and his translated descriptions are in accurate
as regards the second pair of legs in both species.
16. Sicyonia ocellata, Stimpson.
A small specimen is in the second collection, from ^ Thursday
Island 4 -5 fms. (No. 165), which agrees with Stimpson s description
and the specimens in the British-AInseum collection froin Ceylon
and Hong Kong. To this species also belongs, I think, the bicyoma
briefiy characterized by Air. Haswell, but without specific name,
from Port Jackson (vide Cat. p. 205).
17. Penæus granulosus, Haswell.
A small male from Port Darwin, 12 fms. (first collection), belongs
here, and also, I think, a male specimen from Thursday Island,
* ‘ Eeise der Novara,’ Crust, p. 110, pi. x. fig. 5 (1865).
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