Zoology.] NATURAL HISTORY OF VICTORIA. \_Polyzoa. 



kindness of Mr. Hincks and Mr. Waters, received European 

 specimens of C. jistulosa, I was satisfied that they ought to rank 

 as distinct species, and therefore proposed (Trans. Roy. Soc. 

 Vict. 1884) to name it C. australis. In the Challenger Polyzoa 

 Mr. Busk has described the same species as Salicornaria clavata, 

 probably not having noticed that I had already changed the 

 varietal into a sjiecifie name. 



Explanation of Figures. 



Plate 105. — Fig. 1, specimen, natural size. Fig. la, portion of same, magnified, showing 

 outline of zocecia and an avieularium. Fig. lb, group of zocecia and an avicularium. Fig. 1c, 

 single zooecium, showing the iutra-oral denticles. Fig. Id, three zocecia, two showing the 

 ovarian pores. 



Plate 105, Fig. 2. 

 TUBUCELLARIA CEREOIDES (Ellis and Solander). 



[Genus TUBUCELLARIA (D'Oebigny). (Sub-king. Mollusca. Class Polyzoa. Order 

 Infundibulata. Sub-order Cheilostomata. Fam. Tubucellariida?.) 



Gen. Char. — Zoarium consisting of cylindrical internodes connected by corneous tubes ; 

 branches arising dichotomously or irregularly from the sides of the segment to which they are 

 attached. Zocecia prominent above, narrowed below, when young distinct, but when older 

 indistinct ; peristome produced into a short tube ; frequently a small, circular, median pore in 

 front ; surface punctate.] 



Description. — Zoarium consisting of cylindrical brandies, each branch articu- 

 lated by a corneous tube to the side of that from which it springs. Zocecia 

 indistinct; mouth circular ; whole surface punctate. 



Reference. — P. H. MacGillivray, Trans. Roy. Soc. Vict. 1884. 



Port Phillip Heads, Mr. J. Bracebridge Wilson. 



Of this I have only seen two specimens, sent to me by 

 Mr. J. B. Wilson ; one three-quarters of an inch in length, the 

 other smaller. The zoarium consists of cylinders branched 

 exactly as in Cellaria australis, the branches arising from the 

 sides of those from which they spring by flexible corneous tubes. 

 The zocecia are, on the surface, quite confluent, and mostly 

 only distinguishable by their mouths. The whole surface is 

 beautifully punctate, the punctations being caused by the reticu- 

 lation of chains of small depressions or pores. There is usually 

 a minute circular opening about the middle of each zocecium. 



Explanation of Figures. 

 Plate 105. — Fig. 2, specimen, natural size. Fig. 2a, portion of same, magnified. 



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