THE RECENT CRINOIDS OF AUSTRALIA — CLARK. 759 



Actinometra omitabilis, 1884, von Graff, "Challenger" Eeports, 

 Zool., vol. 10, p. 13. 



Actinometra cumingii, 188-1, Bell, Rep. Zool. Coll. H.MS. 



"Alert," p. 167 {Port iMolle). 

 Actinometra elongata, 1888, P. H. Carpenter, "Challenger'' 



Reports, Zool., vol. 26, p. 311, pi. Ivii., figs. 2-4 (Banda). 

 Actinometra simplex, 1888, P. H. Carpenter, torn, cit., p. 311, 



pi. lix., fig. 1 (Admiralty Islands, 16-25 fms.) 

 Actinometra rotalaria, 1888, P. H. Carpenter, torn, cit., vol. 26, 



p. 313, pi. lix.. tig. 2. 



Actinometra quadrata, 1888, P. H. Carpenter, torn, cit., p. 331, 



pi. Ixii., fig. 1 (Tongatabo Reefs, Tonga Islands). 

 Actinoinetra guttata, 1891, Hartlaub, Nova Acta Acad., vol. 58, 



No. 1, p. 96 (in synonymy). 

 Actinometra variabilis (part), 1894, Bell, Proc. Zool. Soc, 1894, 



p. 394 {North-west Australia). 

 Comatula orientalis, 1907, A. H. Clark, Pioc. U.S. Nat. Mus., 

 vol. 33, p. 155 (new name for Actinometra simplex, pre- 

 occupied). 

 Comatula helianthus, 1908, A. H. Clark, idem, vol. 34, p. 440 



(new name for Actinometra elongata, preoccupied). 

 Comanthus (Comanthus) rotalaria, 1909, A. H. Ciaik, Vidensk. 

 Medd. fia. den naturhist. Forening i Kobenhavn, 1909, p. 

 144 {Australia). 

 Differential Characters. — Comanthus parvicirra usually has from 

 five to fifteen cirri which are small and weak, and more or less 

 irregularly spaced about the margin of the centrodorsal. Tliey 

 consist of from twelve to fifteen segments. Tlie arras are from 

 fifteen to forty in number, most commonly between twenty and 

 thirty. The division series are 4 (3 -f 4), but a few can always be 

 found, usually among the II Br series, of 2. The arms rarely 

 exceed 100 mm. in length. 



Specimens in the Australian Museum Collection. — Port MoUe, 

 Queensland — Two small specimens with fifteen and seventeen 

 arras. 



There is also a typical specimen which was collected at the New 

 Hebrides, whence the species had not previously been reported. 



Additional Australian Records. — Torres Strait ; Warrior Reef, 

 Torres Strait; Port Molle, Queensland ; Piinceof Wales Cliannel 

 (10° 30' S. hit., 142° 18' E. long.), in 8 fathoms; Bnssett-Sraith 

 Bank, in 9 fathoms ; Cape Baudin ; Fremantle, West Australia. 

 Distribution. — Comanthus parvicirra ranges from Beluchistan 

 and the Seychelles eastward along the shores of the Indian 



