18 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 40. 



Australia, and its presence at the Cape indicates a connection between 

 the crinoid faunas of these two localities similar to that shown in 

 many other groups. 



Comanthus wahTbergii is a small stout species with well-developed, 

 permanent cirri; these are from XII-XXV, 13-17 (usually about 

 XV, 16), about 10 mm. long; from the fifth to the seventh (usually 

 the sixth) a transition segment is developed which is usually well 

 marked. 



The centrodorsal is thin discoidal, with a broad flat dorsal pole 

 4 mm. in diameter, resembling that of C. trichoptera. 



The arms are from thirteen to twenty-one in number (usually 

 from sixteen to twenty) and are commonly about 60 mm. long. 

 IIIBr series are rare. All the division series are 4 (3 + 4). The arms 

 are short and stout, tapering rapidly, much as in Comatula bracJiiolata. 

 The brachials overlap conspicuously, and the ends of the elements of 

 the division series are prominent. The division series are broad and 

 are close together laterally. 



One of the specimens which I examined in the British Museum 

 (catalogued under the name of Actinometra paucicirra) has thirteen 

 pentacrinoids attached to the cirri; these are similar to those of 

 Comactinia meridionalis and possess seventeen columnars. 



Specific group VALID I A. 



COMANTHUS (VALIDIA) PARVICIRRA (J. Miiller). 



Alecto parvicirra J. Muller, Archiv fur Naturgesch., 1841, Heft 1, p. 145. 

 Alecto timorensis J. Muller, Archiv fur Naturgesch., 1841, Heft 1, p. 145. 

 Comatula brevicirra Dujardin and Hupe, Hist. nat. des zoophytes; echino- 



dermes, 1862, p. 208. 

 Comatula simplex Dujardin and Hupe, Hist. nat. des zoophytes; echinodermes, 



1862, p. 208. 

 Actinometra trachygaster (part) Lutken, Mus. Godeffr. Cat., vol. 4, 1869, p. 125. 

 Actinometra intricata (part) Lutken, Mus. Godeffr. Cat., vol. 5, 1874, p. 190. 

 Comatula mertensi Grube, J. B. der schls. Gesellsch. fur vaterl. Cultur, 1875, p. 74. 

 Actinometra armata W. B. Carpenter, Proc. Roy. Soc. London, vol. 24, 1876, 



p. 451. 

 Actinometra polymorpha P. H. Carpenter, Journ. Linn. Soc. (Zool.), vol. 13, 



1877, p. 440. 

 Actinometra meyeri P. H. Carpenter, Journ. Linn. Soc. (Zool.), vol. 16, 1882, 



p. 525. 

 Antedon mertensi Bell, Proc. Zool. Soc. London, 1882, p. 535. 

 Actinometra mutabilis von Graff, Challenger Reports, vol. 10, Zoology, 1884, p. 13. 

 Actinometra annotea Bell, Sci. Trans. Roy. Dublin Soc. (2), vol. 3, 1887, p. 645. 

 Actinometra elongata P. H. Carpenter, Challenger Reports, vol. 26, Zoology, 



1888, p. 311. 

 Actinometra simplex P. H. Carpenter, Challenger Reports, vol. 26, Zoology, 



1888, p. 312. 

 Actinometra quadrata P. H. Carpenter, Challenger Reports, vol. 26, Zoology, 



1888, p. 331. 



