A MONOGRAPH OF THE EXISTING CRINOIDS 7 



Himerometra persica. Himerometra spinipinna. 



Himerometra philiberti. Himerometra stylifer. 



Himerometra regalis. Himerometra subtilis. 



Himerometra reginae. Himerometra tenera. 



Himerometra guinduplicava. Himerometra tenuipinna. 



Himerometra reynaudii. Himerometra tessellata. 



Himerometra savignii. Himerometra tuberculata. 



Himerometra spicata. Himerometra variipinna. 



The genus Himerometra includes parts of Carpenter's Milberti, Palmata, and 

 Savignyi groups. 



Cyllometra (genotype Antedon manca P. H. Carpenter, 1888) including 



Cyllometra impinnata. Cyllometra manca. 



Cyllometra informis. Cyllometra perspinosa. 



Cyllometra belli. Cyllometra ruber. 



Cyllometra tigrina. 



Cyllometra includes one species placed by Carpenter in the Milberti group near 

 milberti, two placed at the end of the Milberti group, and one placed in the unassigned 

 list at the end of the 10-armed species. 



Perometra (genotype Antedon diomedeae A. H. Clark, 1907) including 



Perometra balanoides. Perometra diomedeae. 



Ptilometra (genotype Alecto [lapsus calami; Miiller used Comatula] macronema 

 J. Miiller, 1841 [should have been 1846]) including 



Ptilometra anthus. Ptilometra macronema. 



Ptilometra longicirra. Ptilometra macropoda. 



In the discussion of the genus Ptilometra it is stated that Antedon anthus, 

 A. longicirra, and A. macropoda were originally assigned to a new genus Asterometra, 

 but that it was later decided to place them in Ptilometra. 



Thalassometra (genotype Antedon villosa A. H. Clark, 1907) including 



Thalassometra acutiradia. Thalassometra incerta. 



Thalassometra agassizii. Thalassometra latipinna. 



Thalassometra alboflava. Thalassometra lusitanica 



Thalassometra aster. Thalassometra multispina. 



Thalassometra bispinosa. Thalassometra pergracilis. 



Thalassometra breviradia. Thalassometra pubescens. 



Thalassometra diadema. Thalassometra quinquecostata. 



Thalassometra duplex. Thalassometra spinicirra. 



Thalassometra echinata. Thalassometra spinifera. 



Thalassometra hana. Thalassometra valida. 



Thalassometra hawaiiensis Thalassometra rillosa. 

 Thalassometra wood-masoni. 



Thalassometra includes the larger part of Carpenter's Basicuroa group, together 

 with part of his Spinifera group and a species placed by him in the Granuli/era group 

 (in addition to being in the Basicurva group). 



