Zoology.] NATURAL HISTORY OF VICTORIA. [Polyzoa* 



Plate 58, Fig. 1. 



CELLULARIA CUSPIDATA (Busk). 



[Genus CELLULARIA (Pallas). (Sub-kingd. Mollusca. Class Polyzoa. Order Infun- 

 dibulata. Sub-ord. Cheilostomata. Fam. Cellulariidae.) 



Gen. Char. — Cells bi-triserial, oblong or rhomboidal, contiguous, usually perforated behind. 

 Without avicularia or vibracula.] 



Description. — Cells oblong ; aperture with the margin thickened and nearly 

 smooth ; outer angle of the cells and the summit of the median cell at a bifurcation, 

 produced into a short sharp spine. A single perforation behind. 



Reference. — Busk, Brit. Mus. Cat. Mar. Polyzoa, p. 19, pi. xxvii., figs. 1, 2. 



Queenscliff and other places ; common. 



Forms whitish, curling tufts, from \ inch high upwards, attached 

 to algae and zoophytes. It is^t once distinguished by the pointed 

 process on the upper and outer angle of the cells and by the similar 

 strong cusp on the summit of the median cell at a bifurcation. In 

 old or worn specimens the single posterior perforation cannot 

 usually be distinguished. I have not seen the ovicell, but accord- 

 ing to Busk it is smooth. 



Explanation op Figures. 



Plate 58. — Fig. 1, specimen, natural size. Fig. la, front view of the same, magnified. 

 Fig. lb, view of back, magnified ; in two cells the posterior perforation is shown. 



Plate 58, Fig. 2. 



MENIPEA CEYSTALLINA (Gray sp.). 



[Genus MENIPEA (Lamx.). (Sub-kingd. Mollusca. Class Polyzoa. Order Infundibulata. 

 Sub-ord. Cheilostomata. Fam. Cellulariidae.) 



Gen. Char. — Cells oblong, abbreviated or elongated and narrowed downwards ; imperforate 

 behind ; a sessile lateral avicularium (frequently absent) and one or two sessile avicularia (also 

 frequently absent) on the front of the cell. Ovicell globular, immersed in the internode.] 



* In different descriptions " zoarium " is used for " polyzoary," " zocecium " is us>ed for " cell," and " ocecium " is 



Instead of " ovicell." 



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