G60 THE MARINE ANNELIDES OP THE ORDER SERPULEA, 



and relatively narrower than the corresponding cells in Eupomatus, 

 and are more densely granular ; they resemble these, however, 

 in having at their intei'nal extremity a clear conical projection or 

 papilla from which arise one or several long nagelliform cilia. 

 The nuclei, which are rather small, are situated nearer the 

 proximal than the distal end of the cell, and there are no addi- 

 tional nuclei about their bases, the cells constituting a single 

 layer without the " cellules de r •emplacement " found in the hypo- 

 derm. 



In Sabella velata the glands have a low epithelium somewhat 

 similar to those of Vermilia, and are deeply lobed posteriorly. 

 In the hinder part of the thorax is a second pair of lobed glands 

 with granular cubical ciliated epithelium, situated on either side 

 between the nerve- cords and the alimentary canal. These dis- 

 appear in front a little distance behind the posterior termination 

 of the anterior pair of glands, and I have been unable to 

 determine their relations to the latter. 



AUSTRALIAN SPECIES. 



Eupomatus elegans, Mihi. ( 1 ) 



[PI. XXXI., figs. 3 and 4 ; pi. XXXII., figs. 11 and 12 ; and 

 pi. XXXIII., figs. 1-6.] 



This species is to be found in great abundance adhering to the 

 stems and fronds of certain sea- weeds at a depth of 10 or 12 

 fathoms in Port Jackson. I have also found it, though very rarely, 

 adhering to the under surface of large blocks of stone a little 

 below low- water mark. The relationship between it and its 

 European congener is extremely close, and with such a variable 

 species it is very difficult to be quite clear as to their distinctions. 

 The probabilities, however, are all in favour of a separation, and 

 doubtless a comparison of a series of each would show certain 

 prevalent distinctive characteristics. Meanwhile I retain the 

 name given when I had only seen a few specimens. 



(1) Proc. Linn. Soc, N.S.W. Vol. VII., p. 633. 



