A MONOGRAPH OF THE EXISTING CRINOIDS 



By AUSTIN HOBART CLARK 



Order COMATULIDA A. H. Clark (continued) 



The general account of this order, with the synonymy, diagnosis, range, and keys 

 to the included families and higher groups, will be found in Part 3, pp. 69-74. 



Suborder OLIGOPHREATA A. H. Clark (continued) 



The synonymy, diagnosis, range, and history of this suborder will be found in 

 Part 3, pp. 74-76. 



Superfamily MARIAMETRIDA Gislen (continued) 



The synonymy, diagnosis, and general account of this superfamily will be found 

 in Part 4a, pp. 74-79. 



Family COLOBOMETRIDAE A. H. Clark 



Milberti group (part) P. H. CARPENTER, Challenger Reports, Zoology, vol. 26, pt. 60, 1888, p. 192. 

 For additional references see Part 4a, p. 180. 



Palmata group (part) P. H. CARPENTER, Challenger Reports, Zoology, vol. 26, pt. 60, 1888, p. 223. 

 For additional references see Part 4a, p. 391. 



Andersoni group P. H. CARPENTER, Journ. Linn. Soc. (Zool.), vol. 21, 1889, p. 307 (in Series I of 

 Antedon; related to the Elegans group; characters). 



Himerometridae (part) A. H. CLARK, Proc. Biol. Soc. Washington, vol. 21, 1908, p. 135; Proc. U. S. 

 Nat. Mus., vol. 34, 1908, p. 211 (includes Oligometra, Cyllometra, Himerometra, and Pontiometra) . 



Colobometridae A. H. CLARK, Proc. Biol. Soc. Washington, vol. 22, 1909, p. 145 (no description; 

 new species of Cenometra and Cyllometra described under this heading), p. 174 (referred to the 

 Comatulida Oligophreata) ; Vid. Medd. Nat. Foren. K0benhavn, 1909, p. 174 (diagnosis; includes 

 Oligometra, Cyllometra, Colobometra, and Cenometra); Proc. U. S. Nat. Mus., vol. 40, 1911, p. 6 

 (6 species in Africa), p. 8 (species on the southeast coast), p. 9 (species on the northeast coast), 

 p. 649 (referred to the Comatulida Oligophreata) ; Die Fauna Sudwest-Australiens, vol. 3, Lief. 

 13, 1911, p. 438 (4 genera and 6 species in Australia); Mem. Australian Mus., vol. 4, 1911, 

 p. 717 (proportionate number of species according to P. H. Carpenter), p. 720 (proportion in 

 the Australian fauna), p. 725 (Cyllometra absent from Australia), p. 729 (in key), p. 730 (in 

 key; key to the Australian genera) ; Crinoids of the Indian Ocean, 1912, p. 6 (exclusively confined 

 to the East Indian region; number of genera and species), p. 11 (represented in the Ceylon region 

 by Cenometra, Decametra, Colobometra, and Oligometra), p. 12 (represented in the Red Sea 

 region by Decametra, Colobometra, and Oligometra; in the southeast African region by Cenometra, 

 Decametra, and Oligometra), p. 22 (distribution in detail; occurs down to 140 fathoms), pp. 46, 

 49, 51 (in keys), p. 57 (key to the included genera); Proc. Biol. Soc. Washington, vol. 26, 1913, 

 p. 141 (Epimetra transferred to this family from the Pontiometridae) ; Bull. Inst. Oce"anogr. 

 Monaco, No. 294, 1914, pp. 7, 8 (relation to temperature); Journ. Washington Acad. Sci., 







