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Pig. B. Cirolana tenuistylis, X 3. h, lateral view of the body,
showing the form of the epimera, x 3 ; V, interantennal
plate.
C. Cymodocea longistylis, adult rf , X 6.
D. Cerceis bidentata, var. aspericaudata, x 5. d, antennules
and antennae.
P l a t e XXXIV.
Pig. A. Leucothoë hrevidigitata, X 4. a, terminal segment and
posterior uropoda ; a', part of the leg of the first pair,
showing the form of the distal process of the wrist-joint,
palm, and minute dactyl ; a", penult, joint and dactyl of
leg of tho second pair.
B. Alegamcera thomsoni, x 5. b, terminal segment ; V, one of
the legs of the first p a ir; b", one of the legs of the second
pair.
C. Caprella attenuata, x 7.
P l a t e XXXV.
Pig. A. Achelia Icevis, var. australiensis, ventral view, X 30.
a, dorsal view of the body of the same species, x 30 ;
a’, oculiferous tubercle.
B. Phoxichilidium hoelcii, adult c ? , ventral view, X 7. b, oral
ap e rtu re ; V, lateral view of the oculiferous tubercle and
mandible ; b", one of the ovigerous legs.
ALCYON ARI ANS.
P l a t e XXXVI.
Fig. A. Psammogorgia rectangularis, tip of pinnule, x 4 ; a & a , the
spicules, X 40. From type (dry) specimen from Port
Darwin, 12 fms.
B. Echinomuricea indo-malaccensis, specimen in spirit, nat.
size. B'. Portion of branch of same, x 4. From Warrior
Reef, Torres Straits. [Some specimens have the branches
stouter and the ends more decidedly clavate.]
Fig. C. Leptogorgia austrcdiensis, var. perfiava, type specimen (dry),
reduced to § nat. size. O'. Portion of main axis of same,
from about 4 inches above base, with origin of three pinnules,
showing the relations of the grooves and verrucæ,
X 2. c, larger, and c', smaller fusiform spicules, X 150.
D. Juncella fragilis. Portion of stem, x 2 |. From dry specimen
from Port Denison, 4 fms.
E. AJuricea tenera, nat. size. E'. Portion of second branch
on the left, x 4. e. Cortical spicule, x 2 5 . el. Portion
of same spicule, much magnified, to show character of
tubercles. From specimen in spirit from Port Molle,
14 fms.
P. Plexaura prælonga, var. typica. Portion of one of the
two main branches, an inch above the point of bifurcation,
X 4. Erom dry specimen from Port Curtis, 5—11 fms.
P l a t e XXXVII.
Fig. A. Spongodes studeri, two terminal lobes, X 2 ; A', portion
of lobule, x 4 : both from specimen in spirit from Port
Molle, 14 fms. a. Id., var. lævior, long zooid-spicule,
X 30, and portion of same, x 90, showing axial cavity
occupied by soft material, a'. Cortical spicule of same,
X 20, and portion, x 90, showing canals radiating from
tubercles to centre, a". Lesser zooid-spicule of same,
X 90. The spicules are from a specimen from Arafura Sea.
B. Alopsella clavigera. Portion of small specimen, near middle,
about halfway upwards from base, front view, X 2. From
dry specimen from Port Curtis, 14 fms.
C. Melitodes albitincta, type (dry) specimen, seen from front, nat.
size. C'. Eifth bifurcation of main stem of same specimen,
X 4. C" & C'". Smaller and larger forms of verrucæ of
same, showing 8 lobes of verrnca-wall and 8 tentacular
lobes within, X 6.
D. Psilacabaria gracillima. D and D'. Two dry fragments,
probably from near base of specimen or specimens, x 2.
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