368 



This species is one of the best known of all the comatulids of the 

 Indo-Pacific-Japanese region. First reported from the Eed Sea by 

 Heu singer in 1828, it has subsequently been found about Ceylon and 

 southern India, at Singapore, Amboina, and among the Tonga Islands. 

 Its discovery at New Guinea was, therefore, to have been expected. 



Genus Cyllometra A. H. Clark. 



Cyllometra sp. 

 A small mutilated ten-armed individual of some species of Cyllo- 

 metra, related to C. manca though with perfectly smooth cirri, was 

 found in the southern Indian ocean, but the exact locality and depth 

 is not recorded. 



Cyllometra studeri (A. H. Clark). 

 The single known specimen of this species was dredged at Dirk 

 Hartog Island, western Australia, in 7 fathoms. 



Genus Oligometra A. H. Clark. 



Oligometra bidens (Bell). 

 A very small specimen with arms only 8 mm long appears to belong 

 to this species as redescribed by Professor Döderlein, but it is so small 

 that positive identification is not possible. It was taken in northwestern 

 Australia. 



Genus Ptilometra A. H. Clark. 



Ptilometra dorcadis A. H. Clark. 

 The only specimen so far known of this species was found at Dirk 

 Hartog Island in 7 fathoms, at the anchorage in Turtle Bay. Professor 

 Stud er records that this species lives clinging to masses of seaweed, 

 and that the colour in life is flesh colour, the pinnules yellow. 



Chronological list of books and papers dealing wholly or in part with 

 the recent crinoids of Australia and with their faunal relations. 



1816. Lamarck, M., le Chevalier de, Histoire naturelle des animaux sans ver- 

 tèbres, vol. 2. 



1841. Müller, Johannes, Über die Gattungen und Arten der Comatulen. Monats- 

 ber. d. k. preuß. Akad. d. "Wiss. Berlin 1841. S. 179—189; also "Wiegmanns 

 iirchiv für Naturgeschichte 1841. I. S. 139—148. 



1845. [Anonymous], L'Institut, 1845. p. 292. (Description of a supposed crinoid 



from the Hunter River, near Newcastle). 



1846. Müller, Johannes, Nachtrag zu der Abhandlung über die Comatulen. Monats- 



ber. d. k. preuß. Akad. d. Wiss. Berlin 1846. S. 177—179. 

 1819. Über die Gattung Gomatula Lam. und ihre Arten. Abhandl. d. k. 



preuß. Akad. d. Wiss. Berlin 1847. S. 237-265. 

 1862. Owen, Sir Richard, Note on the occurrence at King George's Sound, Western 



Australia, of a recent stalked crinoid; (possibly, however, the stalked larva 



of some comatulidj. Ann. and Mag. Nat. Hist. [3] vol. 9. p. 486. 



