A MONOGRAPH OF THE EXISTING CRINOIDS 337 



Challenger in cruising from Cape York through the Banda and Arafura Seas to the 

 Philippines and thence southward to the Admiralty Islands dredged three 10-armed 

 species of comatulids of the Solaris type. These he does not mention by name; two 

 of them are Solaris itself, while the third is Comatula pectinata. 



In another paper published in 1881 he gave a synonymy of Actinometra Solaris 

 which he considered as including the Actinometra imperialis of Mtiller and the Coma- 

 tula (Actinometra?) hamata of Kuhl and van Hasselt. He excluded, however, 

 Asterias pedinata Linne" and Alecto purpurea J. M tiller, both of which species had 

 been treated as probably synonymous with Solaris by Miiller in 1849. He recorded 

 a single specimen in the Leyden Museum which appeared to him to be the type of 

 hamata. He remarked that this is a very variable species and this specimen does not 

 appear to be sufficiently distinct from Lamarck's original specimen in the Paris 

 Museum to justify the establishment of another species. 



In his account of the comatulids of the Hamburg Museum published in 1882 

 Carpenter, under the name Actinometra Solaris, described in great detail a slender- 

 armed specimen from Hong Kong which he said represents one of many variations 

 on the type of Comatula Solaris. He gave a history of the species and notes on the 

 type specimens of Solaris which he had examined at Paris, and of imperialis which he 

 had studied at Vienna. He remarked that there are several other species of smaller 

 size and with fewer segments in the cirri which are closely related to this type for 

 which it is difficult as yet to determine the range of variation. Among these he 

 mentioned the specimens from Bohol collected by Professor Semper and formerly 

 referred by him to Solaris. Under the name of Actinometra robusta he described in 

 great detail a dry specimen from Australia which had been named by Liitken. At 

 the same time he recorded another in the collection of his father. Both had been 

 purchased from the Godeffroy Co. at Hamburg. 



Prof. F. Jeffrey Bell in 1882 published a so-called specific formula for Actinometra 

 Solaris and for another species which he called Actinometra albonotata. The latter had 

 been collected by the Alert in northeastern Australia, although this fact is not stated. 



Early in 1883 Carpenter published a revised formula for Actinometra Solaris and 

 also a formula for Actinometra robusta. 



In the report upon the zoological collections brought together by H. M. S. Alert 

 which was published in 1884 Professor Bell recorded this species under various names 

 and also confused with it other forms. In 1910 I examined the Alert material in the 

 British Museum and found the following correspondence between his records and the 

 specimens upon which they were -based: 



Antedon milberli, Port Denison includes 1 specimen of C. Solaris. 



Actinometra Solaris, Prince of Wales Channel Solaris (2) + pedinata (1). 



Warrior Reef -=pectinata (1). 



Port Curtis ^pedinata (1). 



Torres Straits =soZarts (4) + pcdinata (1). 



Arafura Sea ... = pedinata (1). 



Dundas Strait ^purpurea (2) + pedinata (1). 



Thursday Island = pedinata (3) . 



Albany Island =solaris (1). 



Adinometra Solaris var. albonotata, Albany Island ^Solaris (1). 



Adinometra intermedia, Albany Island =solaris (6). 



