Zoology.'] NATURAL HISTORY OF VICTORIA. [Poli/zoa. 



Plate 58, Fig. 1. 



CELLULARIA CUSPIDATA (Busk). 



l^Genus CELLULARIA (Pallas). (Sub-kinffd. Mollusca. Class Polyzoa. Order Infun- 

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



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. 



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



QueensclifF and other places ; common. 



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

 to algae and zoophytes. It is at 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, l)ut accord- 

 ing to Busk it is smooth. 



Explanation of Figures. 



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

 Fi^. 16, view of back, magnified ; in two cells the posterior perforation is shown. 



Plate 58, Fig. 2. 



MENIPEA CRYSTALLINA (Gray sp.). 



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

 Sub-ord. Cheilostomata. Fam. Cellulariida!.) 



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," " zooecium " is used for " cell," and " ooecium " is used 



Instead of " ovicell." 



[31 ] 



