Zoology.'] 



NATURAL HISTORY OF VICTORIA. 



\_Polyzoa. 



Plate 49, Fig. 1. 

 CELLARIA FISTULOSA (Linn.). 



[Genus CELLARIA (Lamx.) = SALICORNARIA (Cuvier). (Sub-kingd. Mollusca. 

 Class Polyzoa. Order Infundibulata. Sub-Order Cheilostomata. Fam. Salicornariidae.) 



Gen. Char. — Cells distinct, separated by raised margins, much depressed in front ; no 

 aperture.] 



Description. — Internodes long and thick ; cells in a series contiguous, usually 

 elongated and six-sided, straight or slightly arched above and below ; surface finely 

 granular or nearly smooth ; separating margins smooth or finely crenulated on the 

 edges ; mouth central, arched above, lower lip arched upwards and forwards, with 

 frequently a minute rounded denticle inside each angle. Avicularia placed between 

 two cells in a longitudinal series, mandible shallow, wide, rounded above, and 

 directed upwards. Ovicell opening by a round pore. 



Eeference. — Salicornaria farciminoides y Busk, Cat. Mar. Pol. Brit. Mus. p. 

 16, t. lxiv., figs. 1, 2, 3; t. lxv. (bis), fig. 5 ; Hincks, Brit. Mar. Polyzoa, p. 107, pi. 

 xiii., figs. 1-4. 



Queenscliff ; Portland, Mr. Maplestone ; on roots of algae. 

 The internodes are of large size, sometimes three-quarters of an 

 inch long, and thick, containing numerous series of cells. The 

 usual form of the cells is elongated hexagonal, straight or slightly 

 arched above and below ; occasionally they are rhomboidal or five- 

 sided. The surface is minutely granular. 

 The mouth is generally central, but in 

 some portions, especially at the growing 

 extremities, it is nearer the upper end of 

 the cell. The upper lip is arched, smooth 

 or minutely crenulate ; the middle of the 

 lower lip usually projects forwards and 

 upwards, and there is frequently a small 

 denticle on either side. The ovarian pores 

 are round, sometimes elongated longitudinally or transversely. 

 The avicularia do not take the place of cells, but are placed 

 between those of a longitudinal series, and are distinct from them ; 

 the mandible is very wide, shallow and convex above, and is directed 

 upwards. 



Additional views of cells and avicularia 

 of C.fistulosa, magnified fifty diameters, 

 as shading in plate is not satisfactory. 



In different descriptions " zoarium " is used for " polyzoary," " zocecium " is used for " cell," and " ooecium " is used 



instead of " ovicell." 



[47 ] 



