Zoology.] NATURAL HISTORY OF VICTORIA. [Polyzoa, 



In this species the cells are of small size and arranged in lines. 

 They are distinct, and the margin is occasionally faintly areolated, 

 It is readily recognised by the large pouch-like dilatation of the 

 upper part of the cell, on which, opposite to and frequently pro- 

 jecting over the centre of the lower lip, is a further rounded pro- 

 tuberance. 



Explanation op Figures. 



Plate 35. — Fig. 4, specimen, natural size. Fig. 4a, portion, magnified. Fig. 4b } small 

 portion, more highly magnified. 



Plate 35, Fig. 5. 



LEPRALIA SUBIMMERSA (R McG.)- 



Description. — Cells large, irregularly rhomboidal, separated by prominent raised 

 lines, surface granular and perforated ; mouth wide, arched above, slightly hollowed 

 beneath ; a short, nearly transverse avicularium on an elevated portion below the 

 lower lip ; ovicell large, subimmersed in the cell above, granular and perforated 

 like the cells. 



Warrnambool, Mr. Watts. 



Explanation of Figures. 



Plate 35. — Fig. 5, specimen, natural size. Fig. 5a, portion, magnified. Fig, 5b, small 

 portion, more highly magnified, to show ovicell, mouth, and suboral avicularium. 



Plate 35, Fig. 6. 



LEPRALIA ANCEPS (P. McG-.). 



Description. — Cells large, rhomboidal, separated by prominent raised lines, 

 surface granular and perforated; mouth arched above, lower lip hollowed into a 

 shallow sinus, surface slightly elevated below the mouth. Ovicell large, prominent, 

 projecting beyond the margin of the cell above over the edges of those on either side 

 surface largely granular aud perforated. 



Warrnambool, Mr. Watts. 



I have some doubt whether this and the last may not prove to 

 be forms of the same species, In both, the size and surface of the 



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