Art. XIV. — Notes on the Victorian Fossil Selenariidae, 

 and Descriptions of some Netu Species {Recent and 

 Fossil). 



By C. M. MAPLESTONE. 



(With Plates XXIV., XXV.). 



[Read 8th October, 1903]. 



In the course of my examination of our Tertiary Polyzoa I 

 found considerable difficulty in arriving at the correct names for 

 some of the species of the family Selenariidae which references to 

 the original descriptions did not remove, but rather increased, 

 owing either to some of them not being satisfactorily described, 

 or having been described from worn specimens, or the same 

 name being given to different species, or the same species being 

 described under different names. 



The following is an endeavour to disentangle the confusion 

 existing. I will first of all deal with those species which have 

 been recorded as fossil. 



Lunulites parvicelia, T. Woods. T.R.S. S.A., 1879, p. 10. 



The figures given by Dr. MacGillivray and Tenison Woods 

 show the zoaria to be from 2 to 10 millimetres in diameter, but I 

 have found fragments, which evidently belonged to zoaria of com- 

 paratively enormous size, 100 to 120 millimetres in diameter. 



L. canaliculata, McG. T.R.S. V., 1895, p. 45. 



This diftVrs from the former species in the vibracular cells 

 being in single linear series between the zooecia and not irreg- 

 ularly scattered as in that species. 



L. rutella, T. Woods. T.R.S. S.A., 1879, p. 9. 



L. aperta, T. Woods. T.R.S. S. A., 1879, p. 7. 



L. aperta is merely a very much worn specimen of L. rutella. 



L. bifopmis, McG. T.R.S. V., 1895, p. 46. 



In specimens that I have of this species the central zooecia are 

 entirely closed up, as is the case in some other species of this 



