A. H. CLAKK : THE CRINOIDS OF THE INDIAN OCEAN. 209 



species of Thalassometra which was found upon a submarine cable raised by the 

 cable repair ship "Electra" on July 10, 1909. Only the central portion of the 

 animal remains: it is a very spinous form, the long spines on the calyx and arm 

 bases resembling those seen in Thahitsometra hisprnosa. 



Genus CROTALOMETRA. 



Crotalometra 1900. A. H. Clakk, Proc. U. S. Nat. Mus. , vol. 36, p. 40:5 (Crota- 

 lometra eupedata, sp. nov.) . 



CROTALOMETRA EUPEDATA. 



Cwtalomeira rnpedala 1909. A. H. Clark, Proc. U. S. Nat. .Mus., vol. 36. p. 404. 

 Habitat. — Philippine Islands. 

 Depth. — 494 fathoms. 



CROTALOMETRA PROPINQUA. 

 Crotalometra propitiqua 1911. A. H. Clark, Proc. U. S. Nat. Mus., vol. 39, p. 549. 

 Habitat.— Philippine Islands. 

 Depth. — 340 fathoms. 



CROTALOMETRA VALID A. 



Antedon valida 1888. P. H. Carpenter, " Challenger" Reports, vol. 26, Zoology 



p. 104, pi. XV, figs. 5-8. 

 Crotalometra valida 1909. A. H. Clark, Proc. U. S. Nat. Mus. , vol. 36, p. 404. 



Habitat. — Off the Meangis Islands. 

 Depth. — 500 fathoms. 



CROTALOMETRA INCERTA. 



Antedon incerta 1888. P. H. Carpenter, " Challenger" Reports, vol. 26, Zoology, 



p. 106, pi. -xviii, figs. 4, 5. 

 Crotalometra incerta 1909. A. H. Clark, Proc. U. S. Nat. Mus., vol. 36, p. 404. 



Genus STENOMETRA. 



Stenometra 1909. A. H. Clark, Proc. Biol. Soc. Washington, vol. 22, p. 14 

 (Antedon quinquecostata P. H. Carpenter, 1888). 



STENOMETRA QUINQUECOSTATA. 



Antedon quinqverostata 1888. P. H. Carpenter, "Challenger" Reports, vol. 26, 



Zoology, p. 215, pi. iii, figs. 6 a-d; pi. xxxviii, figs. 1-3. 

 Stenometra quinqiierostala 1909. A. H. Clark, Proc. Biol. Soc. Washington, 



vol. 22, p. 15. 



