Report on the zoological collections made in the Indo-Pacific Ocean ...

168 COLLECTIONS FROM MELANESIA.little longer than broad, is referred to this species. Two of thearms which have undergone injury are now giving rise to four andthree arms respectively.Port Molle.21. Actinometra coppingeri. (Plate XVI. fig. B.)Centrodorsal small ; 17-20 cirri in two rows, with from 17-20joints, the fourth to sixth longer than broad, the rest shorter ; thespines, including the penultimate one, obscure.First radials hardly visible, the second three times as wide aslong, partly in contact ; the axillary almost triangular, not a syzygy.The specimen under examination has 12 arms, but the normalnumber is probably 10. First and second brachials wider on theirouter 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 andthe distal edges slightly dentated; further out the joints moreregularly oblong.Syzygies on the third and tenth, and then at about every fifthjoint.First pinnules on the third brachials longer than the second, andthe second a httle longer than the third ; the fourth again ratherlonger. The succeeding ones of a fair length.Length of arms about 70 millim., of cirri 7'5 millim. ; diameter ofdisk 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 byMr. Carpenter ; another from Port Molle has less than 20 arms, asin some of the specimens in the Paris Museum.It is of interest tonote that this appears to be, like A. carinata, a species of exceedinglywide range, for Mr. Carpenter found two specimens of it from Peruin the collection of the Hamburg Museum.