Crinoidea. 441 



Zygometridae. 



V 



Zygwnetra microdiscus Sharks Bay Port Molle 



Zygometra multiradiata Dampier Archi- 

 pelago Cape York 

 Zygometra eleyans V Perth Port Curtis 



Hiinerometridae. 



[Ampliimetra denticulata Arafura Sea Arafura Sea] 

 Heterometra nematodon ? Port Molle 



Mariattietridae. 



Dichrometra rcginae V Port Molle 



Dichrometra gyges Thursday I. 



Colobometridae. 



Cenometra cornuta Adele I. V 



Decametra studeri Dirk Hartog I. V 



Oligometra adeonae Baudin I. Port Curtis 



Oligometra thetidis '? Wollongong 



Oligometra carpenteri Baudin I. Port Curtis 



Six species are purely and characteristically Australian , occurring 

 along the southern coast (one at least also in Tasmania) and extending 

 for varying distances northward along the eastern and western shores. 

 Three of them belong to genera not known elsewhere, though offshoots 

 from East Indian types, and three to very wide ranging East Indian genera; 

 all but one are noticeable for their very short and stout arms. These are 

 the following: 



List of the Crinoids confined to southern Australia; the 

 genera peculiar to Australia are given in heavy -faced type. 



[The first column gives the northern limit of the range on the west coast, 

 the second column, to the right, the northern limit of the range on the 



east coast] 



Comasteridae. 



Comactiniinae. 

 Coniatulella bmchiolata ? Perth Port Phillip 



Comasierinae. 

 Comanthus trichoptera Bunbury Broughton I. 



