A. H. CLARK : THE CEINOIDS OF THE INDIAN OCEAN. 273 



PTTLOCRINUS PINNATUS. 



Ptilocrinus jnnnatus 1907. A. H. Clark, Proc. U. S. Nat. Mu.s., vol. 32, p. 551, 

 pi. liii, fig., p. 552. 



Habitat.— Queen Charlotte Islands, British Columbia. 

 Depth. — 1588 fathoms. 



PTILOCRINUS ANTARCTICUS. 



PtMocrmus antarcticvs lOOS. Bather, Bull, de I'Acad. roy. de Belgique (Classe 

 des sciences), mars 1908, p. 296, fig., p. 299. 



Habitat.— South of Tierra del Fuego (70° 23' S. lat., 82° 47' W. long.). 

 Depth. — About 480 meters. 



Genus THALASSOCRINUS. 



Thalassocrinus 1911. A. H. Clark, Proc. U. S. Nat. Mus.. vol. 39. p. 474 

 (Thalassocrinus pontifer sp. nov.). 



THALASSOCRINUS PONTIFER. 



Thalassocrinus pontifer 1911. A. H. Clark, Proc. U. S. Nat. Mus., vol. 39 

 p. 474. 



Habitat. — Philippine Islands. 

 Depth. — 1262 fathoms. 



Genus HYOCRINUS. 



Hyocrinus 1877. Wyville Thomson. The Atlantic, vol. 2, p. 96 (Hyocrinus 

 bethellianus, sp. nov.). 



HYOCRINUS BETHELLIANUS. 

 Hyocrinus bethellianus 1877. Wyville Thomson. The Atlantic, vol. 2. p. 96. 

 Habitat. — Near the Crozet Islands. 

 Depth. — 1600 fathoms. 



Family PHRYNOCRINIDiE. 



Phrynocriniila- 1907. A. H. Clark. Proc. U. S. Nat. Mus., vol. 32, p. olO. 



Genus PHRYNOCRINUS. 



Phrynocrinus 1907. A. H. Clark, Proc. U. S. Nat. Mus., vol. 32. p. 507 (Phryno- 

 crinus nuaus, sp. nov). 



