46 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



The record of Comatella maculata is based upon the specimen recorded by Bell as 

 Adinometra multiradiata, which was examined in the British Museum. 



Notes are included which were taken from the African specimens of Capillaster 

 multiradiata in the Paris Museum. 



Comanthus wahlbergii is shown to be a valid species, and the differential characters 

 are given from specimens in the British Museum. 



Antedon emendatrix Bell is identified as a species of Cenometra, and the Antedon 

 ^picata recorded by Bell is the same species. 



From a study of the original specimens in the Paris Museum, Gay's Comatula 

 pida is identified as Tropiometra pida, and the differential characters between this 

 form and T. carinata are given. 



The new species described are: 



Capillaster multiradiata coccodis- Decametra mobiusi. 



torna. Decametra modica. 



Comissia ignota. Decametra alaudae. 



Amphimetra africana. Oligometra serripinna occidentalis. 



Craspedometra ater. Tropiometra encrinus. 



Craspedometra madagascarensis. Cosmiometra gardineri. 



Heterometra joubini. Iridometra mauritiana. 



Heterometra gravieri. Iridometra aegyptica. 



Colobometra chadwicki. Perometra afra. 



Comissia ignota was recorded in the Alert report merely under the generic name 

 Adinometra, and was found in the British Museum labeled " Actinometra pectinata." 

 Colobometra chadioicki is the species recorded by Chadwick from Suez under the 

 name of Antedon serripinna. 



Undetermined species of Neocomatella, Comanihus, and Dichrometra were recorded, 

 and 19 records of unidentifiable species are reproduced. 



Thirteen pentacrinoids of Comanthus wahlbergii are noted as having been studied 

 in the British Museum. 



The new generic name Decametra appears; no diagnosis is given, but three new 

 species — mobiusi, modica, and alaudae — are described as belonging to the genus; 

 D. informis and D. taprobanes are also mentioned. 



In an appendix a species listed under a new name, Oligometra serripinna var. 

 eledrae {nomen nudum), is recorded from the Red Sea, and four newspecies are recorded 

 from northwest of Socotra — three under the generic names only and the fourth as 

 Cyclometra flavescens {nomen nudum). 



On May 15 a new genus, Cyclometra, was described to which two species were 

 assigned, C. flavescens, sp. nov. (the genotype) and C. clio {Antedon clio A. H. Clark, 

 1907). On the same date it was suggested that the recent stalked crinoid mentioned 

 by Sir Richard Owen as having been obtained in 8 fathoms was probably an 

 Umbellularian. 



The collection of the Leyden Museum, specimens in which had previously been 

 described by Johannes Muller m 1841 and by P. H. Carpenter in 1881, was discussed 

 in a paper pubUshed in May. Carpenter's Actinometra robustipinna was found to 

 be a species of Himerometra. 



