Zoology.-] NATURAL HISTORY OF VICTORIA. [Polyzoa. 



Plate 36, Fig. 1. 



LEPRALIA VITTATA (P. McG.)- 



Description. — Cells ovate, separated by irregularly reticulated spaces ; front 

 of cell with a broad vitta commencing' below the mouth and extending to near the 

 base of the cell, and a row of small perforations on each side close to the margin ; 

 mouth arched above, nearly straight below. A roundish or nearly pyriform avicu- 

 larium above each cell. 



Reference.— P. H. MacGillivray, Trans. Roy. Soc. Vict., 1868. 



This beautiful species is at once distinguished fi'om all others 

 by the peculiar anterior vitta. The reticulations between the cells 

 are formed by branching tubes. 



Two small specimens found on an oyster shell from Western 

 Port. 



Explanation op Fioubeb. 



Plate 36. — Fig. 1, natural size. Fig. li, magnified. Fig. la, two cells, more highly mag- 

 nified. 



Plate 36, Fig. 2. 

 LEPRALIA BROGNIARTII (Aud.). 



Description. — Cells elongate-pyriform, separated by reticulated spaces, smooth 

 or longitudinally finely sulcate, transversely ringed ; mouth arched above, nearly 

 straight below, the lower lip thickened and projecting forwards. An avicularium 

 above each cell. Ovicell mitriform, obscurely carinate, surmounted by a small 

 avicularium. 



Reference. — Busk, Brit. Mus. Cat., p. 65, t. Ixxxi. 



This is said to be a very variable species. In all the specimens 

 I have seen the cells are separated by reticulated spaces, the reticu- 

 lations being, as in the last, formed by tubes. 



On calcareous nodules from Queeuscliff. 



Explanation of Figures. 



Plate 36. — Fig. 2, natural size. Fig. 26, magnified. Fig. 2a, two cells, more highly mag- 

 nified, the lower one surmounted by an ovicell. 



-D«c. rv. [ 25 ] D 



