2 l6 
Pj and Pj are very slender. 4.5 mm. long, composed of 10 segments. P. is 8 mm. long, 
composed of 13 segments.- P, is 3 mm. long, composed of 8 segments. P. is 4 mm. long with 
10 segments, and bears a genital gland. Beyond the second the segments of these pinnules 
have overlapping and spinous distal edges, which are especially prominent on the distal side. 
2. Doromctra iiiaui'itiana (A. H. Clark). 
A. H. Cl..\RK. Proc. U.S. National ]Museum, vol. 40, 191 1, p. 40 [Iridomeh-a mauritiana). 
Proc. U.S. National Museum, vol. 43, 191 2, p. 405 {Iridometra mauritiana). 
Bull, du Mus. d'hist. nat., Paris, 191 1, N" 4, p. 257 {Iridometra mauritiana). 
3. Dorometra nana (Hartlaub). 
Hartlaub. Nova Acta der Ksl. Leop.-Carol. deutscheii .^kad. der Naturforsch., vol. 58, 
1891, N" I, p. 89, pi. 5, figs. 57, 58 (Antedon nana). 
A. H. Clark. Vidensk. Med. fra den naturhist. Forening i Kobenhavn, 1909, p. 192 [Irido- 
metra nana). 
Crinoids of the Indian Ocean, 191 2, p. 231 [Iridometra nana). 
Smithsonian Miscellaneous Collections, vol. 60, 1912, N" 10, p. 32 [Iridometra nana). 
Smithsonian Miscellaneous Collections, vol. 61, 1913, N'' 15, p. 54 [Iridometra nana). 
H. L. Clark. Publications of the Carnegie Institution of Washington, N" 212, 1915, p. 106 
[Iridometra nana). 
Stat. 144. Anchorage north of Salomakiee (Damar) Island. 45 Metres, i Ex. 
Stat. 250. Anchorage off Kilsuin, western coast of Kur Island. 20 — 45 Metres, i Ex. 
The specimen from Stat. 144 has the arms 25 mm. long. 
That from Stat. 250 is typical of the species; the arms are 30 mm. long; the colour 
is white, banded across the base of each brachial and pinnular with dark purple, the cirri 
faintly pinkish with a narrow band of light purple at the base of each segment. 
4. Dorometra briseis (A. H. Clark). 
A. H. Cl.\RK. Proc. U. S. National Museum, vol. 33, 1907, p. 83 [Antedon briseis). 
5. Dorometra parvicirra (P. H. Carpenter). 
P. H. Carpenter. "Challenger" Reports. Comatulae, 1S88, p. 204, pi. 16, figs. 7. 8 [Antedon 
parvicirra). 
A. H. Cl.^RK. Smithsonian ^Miscellaneous Collections, (Quarterly Issue), vol. 52, 1908, part 2, 
p. 232 [Iridometra scita). 
Proc. U.S. National Museum, vol. 39, 1911, p. 559 [Iridometra parvicirra). 
Smithsonian Miscellaneous Collections, vol. 61, 1913, N" 15, p. 54 [Iridometra scita). 
Stat. 99. 6°7'.5 N., 120° 26' E. .Anchorage off North Ubian. 16 — 23 Metres, i Ex. 
At Stat. 99 there was secured a very small specimen of this species with arms iS mm. 
long and cirri 5 mm. to 7 mm. long, composed of i i segments. 
A reexamination of the t_\'pe specimen of my Iridometra scita, which I now consider 
merely a synonym of Carpenter's Antedon parvicirra, shows that in the original description 
