A. H. CLARK : THE CRINOIDS OF THE INDIAN OCEAN. 139 



Family MARIAMETRID-^. 



Mariametrince 1909. A. H. Clabk^ Proc. Biol. Soc. Washington, vol. 22, p. 176. 



Genus SELENEMETRA. 



Selenemetra 1911. A. H. Clark, Proc. U. S. Nat. Mus., vol. 39, p. 541 (Ante- 

 don finschii Hartlaub, 1890). 



SELENEMETRA FINSCHII. 



Antedon finschii 1890. Hartlaub, Nachr, Ges. Gottingen, Mai 1890, p. 176. 

 — 1891. Nova Acta Acad. German., vol. 58, No. 1, p. 47, pi. iii, fig. 32. 

 Habitat. — New Britain. 



SELENEMETRA ARANEA. 



Dichrometra aranea 1909. A. H. Clark, Proc. Biol. Soc. Washington, vol. 22, 

 p. 76. 



Description. — This species is nearest to S. finschii from New Britain ; it 

 differs from that form in having fewer cirrus segments (53-66), and in having 

 P,j nearly or quite as long as P,^, while the segments in the distal portion of the 

 proximal pinnules are much elongated instead of subequal, slightly longer than 

 broad, as in finschii. The lower pinnules are comparatively slender, but slightly 

 stiffened; P.^ is about as stout as P^, and 2 mm. longer. 



The colour in spirits is light brownish yellow. 



Locality. — West of the Andamans (8° 51' 30" N. lat., 81° 11' 52" E. long.) ; 

 28 fathoms . — One specimen. 



SELENEMETRA GRACILIPES. 



Himeivmetra gracilipes 1908. A. H. Clark, Smiths. Miscell. Coll. (Quarterly 

 Issue), vol. 52, part 2, p. 219. 



Habitat. — Philippine Islands. 

 Depth. — 28 fathoms. 



SELENEMETRA VIRIDIS. 



Selenemetra viridis 1911. A. H. Clark, Proc. U, S. Nat. Mus., vol. 39, p. 541. 



Habitat. — Philippine Islands. 



Depth. — 42 fathoms. 



Genus MARIAMETRA. 

 Mariametra 1909 A. H. Clark, Proc. Biol. Soc. Washington, vol. 22, p. 144. 



(Himerometra subcarinata A. H. Clark, 1908). 



