Zoology.-] NATURAL HISTORY OF VICTORIA. [Polyzoa. 



Port Phillip Heads, Mr. J. Bracebridge Wilson. 



Of this interesting species I have only seen the minute 

 specimen figured, and other examples are much to be desired 

 for more complete examination. In the simplest zooecia there 

 is no peristome, and there is a small avicularium at one side of 

 the mouth. The marginal zooecia have a projecting cylindrical 

 peristome, produced to a point at each side, and having between 

 these a minute avicularium on a semi-spiral tube, as is found in 

 Lehjthopora hystrix. In the absence of other specimens, it is 

 difficult to say whether the avicularium of the simple mouth is 

 carried up on the peristome of the others or whether the marginal 

 zooecia with the constricted peristomes are not rather comparable 

 to the young zooecia of some of the smaller Cellej^orce, and the 

 simpler zooecia in reality older. It undoubtedly belongs to the 

 same genus as Mr. Hincks' Madeiran Phylactella lucida, after- 

 wards referred to Lagenipora, and his L. spinulosa from Queen 

 Charlotte Island.* It is, I think, probable that L. tuherculata 

 and L. nitens will require to be referred to different genera. 



Explanation op ricuBES. 



Plate 156. — Pig. 3, zooecia, showing the tubular constricted peristomes, with the semi- 

 spiral aviculifcrous tubes. Fig. .3n, zooecia without peristome, but with an avicularium at the 

 side of the mouth. Fig. 36, vicarious avicularium. 



Plate 156, Figs. 4-10. 

 LEKYTHOPORA HYSTRIX (McG.). 



[Genus LEKYTnOPORA (McG.). (Sub-kingdom MoUusca. Class Polyzoa. Order 

 Infundibulata. Sub-order Cheilostomata. Family CellcporidaB.) 



Gen. Char. — Zocecia flask-shaped or elongated, oblique or erect, crowded ; primary mouth 

 with a notch in the lower lip and a small avicularium at one side ; secondary mouth with the 

 peristome produced into a long, tubular orifice, on one side of the margin of which is the 

 avicularium, connected with its original position by a minute semi-spiral tube ; ooecia projecting 

 from the front of the zooecia below the mouth, covered by a chitinous or sub-calcareous 

 plate.] 



Description. — The same as tltat of the genus. 



Reference.— P. H. MacGillivray, Tr. Roy. Soc. Vict., Oct. 1882. 



• Ann. and Mag. Nat. History, Jan. 1884. 



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