A. H. CLARK : THE CRINOIDS OF THE INDIAN OCEAN. 95 



COMANTHUS TRICHOPTERA. 



Cnmatula trichoptera 1846. J. MWllee, Monatsber. d. k. preuss. Akad. d. Wiss., 

 1846, p. 178. 



Habitat. — Southern coasts of Australia, and Tasmania. 

 Depth. — Littoral, and down to 12 fathoms. 



COMANTHUS WAHLBERGII. 



Aleclo wahlbergii 1843. J. Mijller, Archiv fiir Naturgesch., 1843, i, p. 131. 



Comatula coccodistoma (part) 1862. Dujardin and Hupe, Hist. nat. des zoophy- 

 tes. Echinodermes, p. 208 (noinen nudum). 



Cotnanthus {Bennettia) wahlhergii 1911. A. H. Clark, Proc. U. S. Nat., Mus., 

 vol. 40, p. 17. 



Actinometra jjaucicirra Urit. Mxjs., MS. 



Habitat. — South Africa, to Natal. 

 Depth. — Littoral, and down to 25 fathoms. 



COMANTHUS SAMOANA. 



Actinometra trachygaster (part) LIjtken, MS. 



Actiiiometra panricirra {psbTt) 1888. P. H. Carpenter, "Challenger" Reports, 



vol. 26, Zoology, p. 338. 

 Comanthus samoana 1909. A. H. Clark, Proc. U. S. Nat. Mus., vol. 37, p. 30. 



Localities. — Invisible Bank. — One specimen, slightly larger than any of 

 those at hand from Samoa, with twenty arms 70 mm. long and cirri XXV, 13 — 14, 

 9 mm. long, in a crowded and irregular marginal row ; the polar area of the 

 centrodorsal is 3 mm. in diameter. 



Other Records. — Samoa; Sulu : Tonga; Fiji; New Caledonia; Ruk, 

 Carolines ; ? Australia. 



Remarks. — I can find no differences whatever between the specimen listed 

 above and those of the type series in the U. S. National Museum from Samoa ; 

 the development of spines on the brachials and pinnulars is excessive, just as in 

 the originals. This species, on account of the similarity in shape and size, has 

 heretofore apparently always been confused with C. parvicirra ; its more numer- 

 ous, stouter, stronger, and more curved cirri, the almost invariable occurrence of 

 division series of 4 (3-|-4), and the excessive development of minute spines on all 

 the post-radial ossicles, however, render it easy of recognition : no one who has 

 handled the two species would mistake it for the very '" soft " C. parvicirra. 



Specific Group Vania, nov. 

 Vulidia 1909. A. H. Clark, Vidensk. Medd. fra den naturhist. Forening i 

 Kobenhavn, 1909, p. 142 (Comatula rotalaria Lamarck, 1816). 



