Zoology.] NATURAL HISTORY OF VICTORIA. [Polyzoa. 



Plate 45, Fig. 2. 

 CAEBASEA EPISCOPALIS (Busk). 



[Genus CARBASEA (Gray). (Sub-kingd. MoUusca. Class Polyzoa. Order Infundi- 

 bulata. Sub-order Cheilostomata. Fam. Flustridee.) 



Gen. Char. — Polyzoary expanded, foliaceous ; cells contiguous, on one side only.] 



Description. — Cells elongated, more or less cylindrical, contracted below, 

 transversely rugose behind ; aperture small. Ovicells mitriform, with a vertical 

 ridge down the centre, and a large opening on each side. 



Reference. — Busk, Voy. Ratt., i., 379; Cat. Mar. Pol. Brit. Mus., p. 52, 

 t. xlviii., figs. 1 and 2; t. lv., fig. 3. 



Queenscliff ; Kings Island, Mr. McGowan. 



At once distinguished by the attenuated, cylindrical cells, with 

 the small rounded apertures. The ovicells are very peculiar, pre- 

 senting a curious resemblance to a bishop's mitre. The polyzoary 

 is dichotomously divided, 2 or 3 inches high, the branches narrow 

 and delicate. 



Explanation of Figures. 



Plate 45. — Fig. 2, specimen, natural size. Fig. 2a, portion, magnified, showing the front 

 of the cells. Fig. 26, portion of back, magnified. Mg. 2c, ovicells, magnified. 



Plate 45, Fig. 3. 



CARBASEA DISSIMILIS (Busk). 



Description. — Cells in front pyriform, only a small portion inferiorly filled in; 

 the marginal cells obliquely truncated above, and with the upper and outer angle 

 produced into a blunt spine, which projects beyond the base of the cell next above ; 

 the cells sometimes unarmed, frequently, especially towards the centre, with a short 

 spine at each upper angle. Avicularia small, at the base of a cell. Ovicell rounded 

 above. 



Reference. — Busk, Cat. Mar. Pol. Brit. Mus., p. 51, t. xlix., figs. 4, 5, 6, 7. 



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