2 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



vol. 4, 1914, No. 19, pp. 559-563 (correlation of geographic and bathymetrical ranges), No. 20, 

 p. 582 (relation to temperature of habitat) ; Internat. Rev. gesamt. Hydrobiol. und Hydro- 

 graphie, 1914, p. 4 (Atlantic and corresponding Indo-Pacific genera); Journ. Washington Acad. 

 Sci., vol. 5, 1915, No. 4, pp. 126-134 (bathymetrical range; phylogenetical and paleontological 

 significance); Amer. Journ. Sci., vol. 40, 1915, p. 67 (detailed philosophical discussion of the 

 bathymetrical range); Internat. Rev. gesamt. Hydrobiol. und Hydrographie, 1915, p. 223 and 

 following (detailed account of the distribution of the Australian species) ; Smithsonian Misc. 

 Coll., vol. 65, No. 10, 1915, p. 42 and following (phylogenetical study); Unstalked crinoids of 

 the Sifcoffa-Exped., 1918, p. 110 (key to the included genera) ; Univ. Iowa Studies in Nat. Hist., 

 vol. 9, No. 5, 1921, p. 12 (represented in the West Indies), p. 26; Smithsonian Misc. Coll., vol. 

 72, No. 7, 1921, p. 3. GISLN, Nova Acta Reg. Soc. Sci. Upsaliensis, ser. 4, vol. 5, No. 6, 1922, 

 pp. 7, 9, 76, 79, 80, 89, 123, 142. A. H. CLARK, Danish Ingolf-Exped., vol. 4, No. 5, Crinoidea, 

 1923, p. 39. GISLN, Zool. Bidrag Uppsala, vol. 9, 1924, pp. 19, 42, 79, 84, 89, 99, 100, 212, 231, 

 232, footnote, 235, 280; Vid. Medd. Dansk Nat. Foren., vol. 83, 1927, pp. 23, 26, 27, 28; Ark. 

 ZooL, vol. 19, No. 32, 1928, p. 6. A. H. CLARK, Journ. Linn. Soc. (Zool.), vol. 36, No. 249, 

 1929, pp. 641, 643; Rec. Indian Mus., vol. 34, pt. 4, 1932, p. 558. H. L. CLARK, Scientific 

 survey of Porto Rico and the Virgin Islands, vol. 16, pt. 1, 1933, p. 12. A. H. CLARK, Treubia, 

 vol. 14, livr. 2, 1933, p. 208 (Pontiometra referred to this family), p. 213. GISLN, Kungl. 

 Fysiogr. Sftllsk. Handl., new ser., vol. 45, No. 11, 1934, pp. 18, 20, 22, 23, 25, 27, 43. EKMAN, 

 Zoogeographica, vol. 2, No. 3, 1934, pp. 328, 343 (zoogeographic significance) ; Tiergeographie 



des Meeres, 1935, p. 66. A. H. CLARK, Temminckia, vol. 1, 1936, p. 304. GILSN, 



Kungl. Fysiogr. Sallsk. Lund Forh., vol. 7, No. 1, 1936, pp. 2, 14. A. H. CLARK, John Murray 

 Exped. 1933-34, Sci. Reports, vol. 4, No. 4, 1936, pp. 89, 100, 103. H. L. CLARK, Mem. Mus. 

 Comp. Zool., vol. 55, 1938, p. 36. GISLN, Kungl. Svenska Vet.-Akad. Handl., ser. 3, vol. 17, 

 No. 2, 1938, p. 12, 15; Lunds Univ. Arsskr., new ser., Avd. 2, vol. 40, No. 8, 1944, p. 54, foot- 

 note 1. H. L. CLARK, Echinoderm fauna of Australia, 1946, p. 23 (in key), p. 48 (key to the 

 Australian genera). 



Pontiometridae A. H. CLARK, Proc. Biol. Soc. Washington, vol. 22, 1909, p. 175 (includes Pontio- 

 metra); Proc. U. S. Nat. Mus., vol. 40, 1911, p. 649 (referred to the Oligophreata) ; Mem. 

 Australian Mus., vol. 4, 1911, p. 725 (absent from Australia); Crinoids of the Indian Ocean, 

 1912, p. 6 (exclusively confined to the East Indian region; number of genera and species), p. 

 9 (absent from Australia), p. 10 (absent from Japan), p. 11 (occurs on the west coast of the 

 Malay Peninsula), pp. 46, 52 (in keys), p. 57 (key to the included genera); Proc. Biol. Soc. 

 Washington, vol. 26, 1913, p. 141 (not tenable; included genera referred to the Mariametridae 

 except Epimetra, which is referred to the Colobometridae). 



Pontiometres A. H. CLARK, Bull. Mus. Hist. Nat., Paris, No. 4, 1911, p. 252. 



Mariametridae (part) A. H. CLARK, Proc. Biol. Soc. Washington, vol. 26, 1913, p. 141 (revised; 

 considered as including the genera of Pontiometridae, except Epimetra, which is assigned to 

 the Colobometridae). 



Diagnosis. A family of the superfamily Mariametrida in which some or all of 

 the cirrus segments bear dorsally a transverse ridge, rarely two, a proximal and a 

 distal, three spines arranged transversely, or a pair of tubercles or spines, one on 

 each side of the median line. 



Geographical range. From southern Japan, the Bonin and Marshall Islands, 

 southward to Fiji, New Caledonia, Bass Strait between Australia and Tasmania, 

 and Shark Bay, Western Australia, and westward to the eastern coast of Africa from 

 the Red Sea southward to the Cape of Good Hope; from the Bahamas and the 

 Florida Straits to Barbados and Colon. 



Bathymetrical range. From the shore line down to 329 (possibly 731) meters. 

 This family is especially characteristic of shallow water, 9 of the 17 included genera 

 being represented along the shore line, though on the other hand 4, so far as known, 

 are not represented above 100 meters. 



