'Alert' 1881-2

168 COLLECTIONS FROM MELANESIA.
little longer than broad, is referred to this species. Two of the
arms which have undergone injury are now giving rise to four and
three arms respectively.
Port Molle.
21. Actinometra coppingeri. (Plate XVI. fig. B.)
Centrodorsal small ; 17-20 cirri in two rows, with from 17-20
joints, the fourth to sixth longer than broad, the rest shorter ; the
spines, including the penultimate one, obscure.
First radials hardly visible, the second three times as wide as
long, partly in contact ; the axillary almost triangular, not a syzygy.
The specimen under examination has 12 arms, but the normal
number is probably 10. First and second brachials wider on their
outer than their inner side, the fii'st in contact, the third a syzj'-gy ;
it and the next two oblong ; the succeeding ones wedge-shaped and
the distal edges slightly dentated; further out the joints more
regularly oblong.
Syzygies on the third and tenth, and then at about every fifth
joint.
First pinnules on the third brachials longer than the second, and
the second a httle longer than the third ; the fourth again rather
longer. The succeeding ones of a fair length.
Length of arms about 70 millim., of cirri 7'5 millim. ; diameter of
disk 4*5 millim.
Colour creamy white.
Flinders, Clairmont.
22. Actinometra jukesi.
P. H. Carpenter, P. H. S. 1879, p. 390.
A technical description of this species will be given by Mr. P.
Herbert Carpenter in his Eeport on the Comatulidae of the ' Challenger'
Collection. It is evidently a common form.
Albany Island ; Prince of Wales Channel.
23. Actinometra parvicirra.
Actinometra parvicirra {Midler), P. II. Carpenter, Notes Leyd. Mus.
iii. p. 204, ibique citata.
A small specimen, from Warrior Reef, was determined for me by
Mr. Carpenter ; another from Port Molle has less than 20 arms, as
in some of the specimens in the Paris Museum. It is of interest to
note that this appears to be, like A. carinata, a species of exceedingly
wide range, for Mr. Carpenter found two specimens of it from Peru
in the collection of the Hamburg Museum.