Australian Polyzoa. 137 



G. variolosa. 



Cells immersed, confused, indistinct ; surface tubercular : 

 mouth large, arched above, with a wide shallow notch below ; 

 rostrum large placed irregularly, at a little distance from the 

 mouth of the cell, with a large avicularium on one side. 

 Ovicell large, conical at the summit, areolated. 



QueenscHff, on algse. 



A peculiar species, occurring as a thick layer encrusting a 

 narrow, dark sea- weed. The cells are quite coalescent and 

 indistinct, and the whole surface, in fresh portions, is tuber- 

 cular or, in older cells, deeply areolated or pierced by round 

 openings with smooth edges. These apertures are caused, 

 as occurs also in other polyzoa, by the abrasion of the 

 tubercles. The ovicells are very large, prominent at the 

 summit, which is produced into a conical eminence ; the 

 surface is areolated like that of the cells. 



C. intermedia. 



Cells large, confused, oblique or nearly horizontal, faintly 

 granular ; mouth arched above, straight below ; usually no 

 distinct rostrum ; the cell is prominent below the mouth 

 towards the middle. Avicularia either small and situated 

 on a small rostrum below the mouth, or placed irregularly, 

 with a large spoon shaped mandible. Ovicell small, globular, 

 partly immersed, faintly granular. 



Queenscliff. 



Of this I have only seen a single specimen. It is in a 

 calcareous stony layer, more than an inch in diameter, 

 attached to the root of a Laminaria and free at its edges. 

 The cells are large, and a good deal resemble those of a 

 Lepralia. They are heaped together irregularly, prominent 

 below the mouth towards the middle. In a few of the cells 

 there is a small elevation, an abortive rostrum, immediately 

 below the mouth, with a conspicuous avicularium on its side. 

 There are also one or two avicularia, irregularly situated, 

 with large, long, broad, spoon-shaped mandibles. 



Family ESCHARIDM 



Genus ESCHABA, Ray. 



E. obliqua. 



Polyzoary expanded, foliaceous ; cells obliquely rhom- 



boidal, separated by narrow, raised, smooth lines ; surface, 



tubercular ; mouth arched above, with a wide notch below. 



