A MONOGRAPH OP THE EXISTING CRINOIDS 21 



A supplementary list of the additional crinoids known from Japan is given; 

 these are: 



Comatula paucicirra. Poecilometra acoela. 



Comaster mariae. Calometra callista. 



Comaster multiradiata. Calometra versicolor. 



Comaster serrata. Asterometra anthus. 



Comaster solaster. Asterometra macropoda. 



Catoptometra hartlaubi. Nanometra bowersi. 



Catoptometra koehleri. Iridometra adrestine. 



Catoptometra rubrqfiava. Iridometra briseis. 



Himerometra delicatissima. Iridometra minuta. 



Himerometra doderleini. Thaumatoimtra alternata. 



Himerometra stylifer. Thaumatometra parva. 



Cyllometra tigrina. Heliometra clio. 



Thalassometra alboflam. Heliometra laodice. 



Thalassometra diadema. Heliometra mariae. 



Thalassometra hana. Thysanometra tenelloides. 



Thalassometra latipinna. Decametrocrinus borealis. 



Thalassometra pubescens. Pentametrocrinus diomedeae. 



Charitometra garrettiana. Pentametrocrinus japonicus. 



Charitometra hepburniana. Pentametrocrinus tuberculatus. 

 Pentametrocrinus varians. 

 and the following stalked species: 



Metacrinus angulatus. Car pent erocrinus mollis. 



Metacrinus rotundus. Phrynocrinus nudus. 



Metacrinus superbus. Bathycrinus pacificus. 



All of these species, excepting Comaster multiradiata, Himerometra doderleini, 

 Thalassometra latipinna, Thaumatometra alternata, and Carpenterocrinus mollis were 

 secured hy the Albatross in 1906. 



The generic name Catoptometra is here used for the first time; no diagnosis is 

 given, and the name is merely used in connection with the species hartlaubi, koehleri, 

 and rubrojlava, listed in the family Zygometridae. 



The new generic name Carpenterocrinus is used in combination with (Pentacrinus) 

 mollis P. H. Carpenter without explanation. 



Pentametrocrinus diomedeae is a nomen nudum. 



Calometra propinqua is not included, being considered a synonym of C. versicolor. 



Nanometra bowersi as given includes Antedon minor, A. orientalis, and Nanometra 

 minckerti, though none of there are mentioned. 



Heliometra hondoensis and H. rathbuni are not listed; the former is considered a 

 synonym of H. mariae, and the latter a synonym of H. laodice. 



Himerometra crassipinna is stated to have been seen labeled, probably erroneously, 

 as from Japan. 



