must be referred to the variety cheverti, not only are the hepatic
granules entirely absent, hut also the front has not the faintest
trace of trilobation.
97. Leucosia craniolaris, var. Isevimana. (P late XXVI. fig. A.)
I propose thus to designate, a t least provisionally, a female specimen
ohtained in 10 fms. at Priday Island, Torres Straits (No. 153),
which is distinguished from the very numerous examples of
L . craniolaris in the Aluseum collection by the absence of a series
of granules on the inner margin of the palms of the chelipedes.
The carapace is narrower than is usual in L. craniolaris, very
polished and shining, and has two white spots on either side of the
gastric region. The notch in the anterior margin of the thoracic
sinus is less distinct than is usual in L. craniolaris. A second
specimen from Torres Straits, in the Museum collection, resembles
Dr. Coppinger’s example in its narrow rhomboidal carapace, but the
inner margins of the chelipedes are distinctly granulated.
Specimens of Leucosia craniolaris are in the British Museum from
Tranquebar (OZcZ Collection); Ceylon (A. W. H. Holdsworth) ; Penang
(Dr. Cantor) ; Borneo and Chinese seas (coll. H.Ai.S. ‘ Samarang j ;
Pormosa (Matthew Dickson) ; Hong-Kong (Dr. W. A. Harland and
W. Stimpson).
98. Mjrra carinata, Bell.
Plinders, Clairmont, N.E. Australia.* A fine male dredged in
11 fms. (No. 108) seems to be referable to this species, which has
been recorded by Mr. Haswell * from Cape Grenville.
Specimens are in the British-Aluseum collection from the Celebes,
Alacassar (coll. Dr. Bleeker), Philippines (Cuming), and Hong-
Kong (Dr. W. A . Harland).
These differ slightly among themselves in certain points, as e. g.
the relative narrowness of the carapace, prominence of the inner
and upper orbital angles, aud length of the posterior spines, characters
th a t may be of some importance ; but large series are needed to
determine with certainty the distinctions between the very variable
species of this genus.
99. Myra affinis, Bell.
Eour specimens are referred here from Port Denison, 4 fms. (Nos.
I l l , 122), first collection, and a larger female from Thursday Island,
3 -4 fms., second collection (No. 177), which, like the examples mentioned
by Mr. Haswell from Cape Grenville and New South Wales,
have a more or less distinct median longitudinal carina on the
carapace.
Of AI. affinis there are specimens iu the British-Museum collection
from the Philippine Islands, Mashate, Zehn (Cuming), and from
the Eastern seas (H.M.S. ‘ Samarang ’) without special locality.
* ‘ Catalogue,’ p. 121 (1882).
CEUSTACEA. 251
The larger specimen closely resembles the specimens referred to
M. aihnis in the Museum collection, and scarcely differs from M. mam-
millaris except in the (relatively) somewhat longer, more acute
median spine of the posterior margin, and shorter chelipedes ; and i
think it probable th at a larger series would demonstrate the necessity
of uniting the two species. The younger examples may be distinguished
from those referred to AI. australis by their narrower carapace,
and the longer, more acute, and non-recurved posterior marginal
spines.
100. Myra mammillaris, Bell.
An adult male is in the collection from Port Denison, 4 fms.
*"^There ^are in the Museum collection specimens from Adelaide,
S. Australia (purchased), and others without special locality.
101. Myra au stralis, 7/asw«ZZ ?
Myra mammillaris (young), Miers, Trans. Linn. Soc. ser 2, Zool. i.
p 239, pi. xxxviii. figs. 25-27 (1877). _
? Alyra australis, Haswell, Proc. Linn. Soc. N. S. W. iv. p. 50, pi. v.
fig. 3 (1880); Catalogue, p. 122 (1882).
Three specimens are referred doubtfully to_ this form from Port
Molle 14 fms. (No. 93), and one from Port Denison, 4 fms. (No. 122)
(first collection); also a male from Thursday Island, 3 -4 fms.
('No. 177) two females from the same locality, 4 -5 fms. (No. 105),.
(to the hack of one of which is attached a fine specimen of a species
of Acetabularia), and two males from Prince of Wales Channel,
obtained at 7 fms. (No. 142) and 9 fms. (No. 1 5 ^ - .
In some of the specimens I have examined the carapaw is much
more evenly granulated than in others, and they also differ in the
more or less recurved posterior median spine and the greater or
lesser dilatation of the intestinal region; in some females the postabdomen
is comparatively narrow, whereas m othera it covers the
whole of the sternal surface. Although some of the larger specimens
approach nearly in their characters to_ M mammillaris, yet,
as all may he distinguished by their more orbiculate carapace, more
acutely-angulated pterygostomian regions, the more or less recurved
l o L L median sUne, and relatively shorter chelipedes, I prefer to
Ho p t for them, at least provisionally, Air. Haswell s specific name,
rsh o n ld add, however, th a t in Mr. HaswelPs figure the male postahdomen
is represented as shorter than in our specimens, with the
sides somewhat constricted at base of the terminal segment. _
There are specimens from Shark Bay, West Australia, in the
Museum collection (H.M.S. ‘ Herald j which probably belong here,
h ut in one (a female) the granulations of the carapace are very
indistinct.
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