Zoology.] NATURAL HISTORY OF VICTORIA. {Polyzoa. 



Plate 148, Fig. 7. 



CELLEPORA PLATALEA (McG.). 



Description. — Zoarium very small, pisiform, glassy. Zooecia very small, 

 rounded, irregularly heaped ; mouth slightly hollowed below, but without a distinct 

 sinus ; frequently a broad sub-oral mucro. Avicularia with very long-, slender 

 spatulate mandibles. Ocecia globular, with a distinct arched area with radiating 

 grooves. 



Eeference. — P. H. MacGillivray, Trans. Roy. Soc. Vict , Nov. 1884. 



Port Phillip Heads, and probably common. 



A very minute species, distinguished by the markings on the 

 area of the ooecium, and the very long, narrow avicularia. 



Explanation of Figure. 

 Plate 148. — Fig. 7, portion of specimen, magnified. 



Plate 148, Fig. 8. 



CELLEPORA GLOMERATA (McG.). 



Description. — Zoarium very small, pisiform, glomerular, attached to stems of 

 zoophytes. Zooecia ver} r irregularly heaped; mouth with a shallow sinus in the 

 lower lip ; in young zooecia a long superior mucro with a sessile avicularium on the 

 inner aspect; in older zooecia a short, thick, sub-oral mucro with a small avicularium 

 at the summit or internally ; scattered vicarious avicularia, with broadly spatulate 

 mandibles. Ooecia small, globular, smooth and glossy, or occasionally (when 

 young) with a small mark on the front. 



Port Phillip Heads, on Zoophytes. 



A minute species, distinguished by its glomerulate mode of 

 growth, the smooth ocecia, and the broadly spatulate avicularia. 



Explanation of Figures. 



Plate 148. — Fig. 8, specimen, natural size. Fig. 8a, portion of same, magnified, showing 

 young ooecia and avicularia. Fig. 86, portion of same, showing marginal zooecia with superior 

 processes. 



Plate 148, Fig. 9. 



CELLEPORA VITREA (McG.). 



Description. — Zoarium small, encrusting, glassy. Zooecia elongated, distinct, 

 horizontal at the margins, more confused centrally; margins areolated or surface 

 traversed by prominent glassy ribs ; mouth with a rather wide and not very deep 

 sinus on the lower lip ; a large, broad, smooth mucro below the mouth. 



[186] 



