Zoology.] NATURAL HISTORY OF VICTORIA. [Polyzoa. 



oblique ; and the ooecia are broader, the inferior angles not so 

 sharply pointed, and there is a smooth space in front without any 

 punctation. 



Explanation of Figures. 



Plate 116. — Fig. 5, two mature zocecia with ooecia, showing also the process on the mucro. 

 Fig. 6, two cells from another specimen. Fig. 7, younger cells from another specimen, showing 

 the growth of the mucro. Fig. 8, single marginal cell, showing the central and lateral denticles. 



Plate 116, Fig. 9. 



CYCLICOPORA LONGIPORA (P. McG.). 



[Genus CYCLTCOPORA (Hincks). (Suh-kingd. Mollusca. Class Polyzoa. Order Infun- 

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



Gen. Char. — Zoarium encrusting or loosely adnate. Zooecia elongated ; mouth suborbicular, 

 turned forwards, with a slightly-thickened margin. No avicularia. Ocecium prominent.] 



Description. — Zocecia much elongated, distinct, arranged in linear series, 

 convex ; surface smooth and sparsely punctured ; mouth nearly circular, with the 

 lower lip usually slightly straightened, margin thickened. Ocecium large, rounded, 

 smooth. 



Reference. — Lepralia longipora, P. H. MacGillivray, Tr. Roy. Soc. Vict., 

 July 1882; Cyclicopora prcelonga, Hincks, Ann. and Mag. Nat. Hist., Oct. 1884. 



Port Phillip Heads, mostly on calcareous nodules, common. 



Explanation of Figure. 

 Plate 116. — Fig. 9, portion of specimen, magnified. 



The specimens and descriptions for the Polyzoa on this plate 

 have been contributed by Mr. MacGillivray. 



Frederick McCoy. 



[ 66] 



