A MONOGKAPH OF THE EXISTING CRINOIBS 9 



Antedon challengeri. Antedon orientalis. 



Antedon ciliata. Antedon parvicirra. 



Antedon dentata. Antedon parvula. 



Antedon diibeni. Antedon phalangium. 



Antedon exigua. Antedon prolim. 



Antedon hirsuta. Antedon psyche. 



Antedon hupferi. Antedon pumila. 



Antedon isis. Antedon remota. 



Antedon japonica. Antedon serrata. 



Antedon laevis. Antedon serripinna. 



Antedon longipinna. Antedon stella. 



Anedon minuta. Antedon tenella. 



Antedon nana. Antedon tenuicirra. 



The new specific names published in this paper are the following: 

 Nanometra minckerti, new name for Antedon minor A. H. Clark, 1907, preoccu- 

 pied (by a fossil species). 



Heliometra glabra, new name for Antedon australis P. H. Carpenter, 1888, not 

 Antedon australis P. H. Carpenter, 1882. 



Antedon challengeri, new name for Antedon lineata P. H. Carpenter, 1888, not 

 Antedon lineatus Pomel, 1887. 



Antedon stella, new name for Antedon tenuis A. H. Clark, 1907, not Antedon 

 tenuis P. H. Carpenter, 1887. 



Cyllometra belli, new name for Antedon loveni Bell, 1884, not Antedon loveni Bell, 

 1882. 



Thalassometra pergracilis, new name for Antedon gracilis P. H. Carpenter 1888, 

 preoccupied. 



The following are nomina nuda: 



Heliometra juvenalis. Himerometra helianthus. 



Himerometra persica. Antedon psyche. 



Antedon serrata. 



Bell's Antedon capensis, recently described, is identified, from specimens sent 

 by Professor Bell to the Museum of Comparative Zoology and there examined, as 

 Tropiometra carinata. 



Cyllometra manca as the name is used in the discussion of the genus Heliometra 

 refers to the Japanese C. albopurpurea, not then recognized as a distinct species. 



In a paper published at Cambridge, Mass., in January, 1908, eight new species 

 are described; new records for Heliometra rhomboidea (west coast of Central America) 

 and Psathyrometra, sp. (Galapagos Islands) were published; the occurrence of 6-rayed 

 specimens of Tropiometra carinata at Rio de Janeiro and the prevalence of this varia- 

 tion among the crinoids generally were discussed; a key to the species of the genus 

 Bathycrinus was given, together with a table of the bathymetrical, thermal, and 

 geographical ranges of these species; and a key to the genera (with the genotypes) 

 into which the genus Antedon was divided in the preceding paper is appended. In 



