138 Australian Polyzoa. 



Ovicell large, tubercular, traversed by. irregular lines like 

 those separating the cells. 



Snapper Point, a single specimen. 



The shape and arrangement of the cells is such that they 

 form series running in an arched direction laterally. 



E. elegans. 



Polyzoary expanded, foliaceous, convoluted ; cells quad- 

 rate, separated by narrow raised lines and arranged in 

 longitudinal linear series ; surface granular ; mouth arched 

 above, lower lip arched upwards and projecting, a minute 

 curved denticle sometimes on each side of the mouth imme- 

 diately above the angles. Avicularia, when present, situated 

 at the side of the mouth. Ovicell large, granular, with 

 lines on the surface similar to those separating the cells. 



Queenscliff and Portland Bay. 



E. dispar. 



Polyzoary dividing into branching lobes ; cells immersed ; 

 mouth spout-like superiorly. An avicularium on one side of 

 the mouth, mandible pointed upwards. 



Queenscliff, a single specimen attached to the root of a 

 Laminaria. 



E. denticulata. 



Polyzoary thin, foliaceous, convoluted ; cells quincuncial, 

 wide above, contracted below, separated by narrow, smooth, 

 or minutely crenulated margins ; front depressed, granular, 

 with an elongated slit-like opening on either side. 



Snapper Point. 



The front of the cell is depressed, sloping from the edges ; 

 the mouth opening is very large, arched above, straight 

 below ; the perforations in the sides are about one-third 

 the length of the cells, the inner margin has a series of 

 sharp denticles, the outer is granular like the rest of the cell. 

 When fresh, the slit-like openings are obscured by the 

 epidermis. 



Genus BIFLUSTRA, UOrhigny. 

 B. fmgilis. 



Polyzoary much convoluted, thin, brittle, semitransparent ; 

 cells quadrate, arched above, aperture partially filled in by 

 a calcareous plate, leaving an oval or elliptical opening ; 

 lower margin entire. 



King's Island and Port Curtis. 



