ACTINOMETRA TVPICA. 195 



as to whether there are three or four joints in the primary 

 arms ; but he says distinctly that no axillary has a syzygy. 

 As a matter of fact there are three distichal joints of the 

 usual character, the third or axillary being a syzygial or 

 double joint; and though the successive axillaries are separ- 

 ated only by single joints, yet these very joints are unit- 

 ed by syzygies to the axillaries above them. Further , the 

 second and third radials are united by syzygy, and the 

 first brachial is also a syzygial or double joint , as to both 

 of which characters Muller is silent. 



Misled by Müller's description I have mentioned Co7n. 

 Novae-Guineae as amon^' the Comatidae dredged by the 

 » Challenger" ^). This, however, is not the case, though 

 the type in question (from Banda) corresponds very closel7 

 with Müller's specific diagnosis of the New Guinea spe- 

 cimen. Even as it is I cannot be positively sure that there 

 are syzygies in this last between the two outer radials , 

 and between each axillary and the joint below it, as it 

 presents no natural fractures; and future dissection of an- 

 other specimen may show that this is not the case. Under 

 these circumstances the specific diagnosis of the type would 

 require a second revision ; but I venture to think that this 

 will not be necessary. 



The nearest ally of Actinomeira Novae Guiiieae is the sin- 

 gular type described by Loven under the name of Phano- 

 genia to which we will now pass on. 



13. JLctittoinetvu iypica , Loven. sp. 



1866. Phanogenia iyJD^ca , Loven. Ofvers. af. K. Vet. Akad. 

 Förh. Arg. 23. N». 9. p. 231. 

 Actinometra stellata , Lütken. M.S. Museum Go- 

 deffroy. 



Locality , Jobie. Coll. von Rosenberg. 



I) ?ron. Roy. Sop. 1879. iN°. 191, p. .'JSfi. 



iS'otes from the Leydeii IVIuseum , Vol. III. 



