58 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



On June 6 three new crinoids were described from southern Japan, two of them 

 from the collection of Prof. Franz Doflein which had been sent to the author for 

 study. These were : 



Comantheria intermedia. Dichrometra dofieini. 



Prometra owstoni. 



On October 19 six new genera of Thalassometridae and Charitometridae were 

 diagnosed : 



Oceanometra (genotype Thalassometra gigantea A. H. Clark, 1908). 



Crossometra (genotype Pachylometra investigatoris A. H. Clark, 1909). 



Perissometra (genotype Antedon flexilis P. H. Carpenter, 1888). 



Monachometra (genotype Pachylometra fragilis A. H. Clark, 1912). 



Calyptometra (genotype Charitometra lateralis A. H. Clark, 1908). 



Chondrometra (genotype Chlorometra robusta A. H. Clark, 1911). 



A complete revision of the family Antedonidae appeared on March 4, 1917, in 

 which the following subfamilies were recognized: 



Antedoninae (including Antedon, Compsometra, Mastigometra, Euantedon, Toxo- 

 metra, Dorometra, Eumetra, Iridometra, Hybometra, Andrometra, and Argyrometra) . 



Thysanometrinae (including Thysanometra and Coccometra}. 



Perometrinae (including Perometra, Nanometra, Erythrometra, and Hypalometra). 



Heliometrinae (including Heliometra, Promachocrinus, Anthometra, Solanometra, 

 Florometra, and Cyclometra} . 



Zenometrinae (including Balanometra, Psathyrometra, Leptometra, Adelometra, 

 Zenometra, Sarametra, and Eumorphometra) . 



Isometrinae (mcluding Isometra). 



Bathymetrinae (mcluding Orthometra, Tonrometra, Fariometra, Trichometra, 

 Hathrometra, Nepiometra, Phrixometra, Thaumatometra, and Bathymetra). 



Of the 40 genera assigned to the Antedonidae the following 9 were new : 



Dorometra (genotype Antedon nana Hartlaub, 1890). 



Andrometra (genotype Antedon psyche A. H. Clark, 1908). 



Argyrometra (genotype Iridometra crispa A. H. Clark, 1908). 



Sarametra (genotype Zenometra triserialis A. H. Clark, 1908). 



Orthometra (genotype Trichometra hibernica A. H. Clark, 1913). 



Tonrometra (genotype Antedon remota P. H. Carpenter, 1888). 



Fariometra (genotype Trichometra explicata A. H. Clark, 1908). 



Nepiometra (genotype Antedon laevis P. H. Carpenter, 1888). 



Phrixometra (genotype Antedon longipinna P. H. Carpenter, 1888). 



A new species was described, the second known from New Zealand: 



Argyrometra mortenseni. 



On March 31 four new echinoderms from the West Indies were described, among 

 them two crinoids: 



Neocomatella ornata. Nemaster insolitus. 



On June 19 the family Bourgueticrinidae was revised, according to the plan 

 indicated in the memoir on the crinoids of the Antarctic regions. The following new 

 genus was described : 



