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



Plate 186, Fig. 3. 

 SCHIZOPORELLA PULCHERRIMA (McG.). 



Description. — Zooecia separated by narrow raised lines, broad and nearly flat, 

 surface liyaline, traversed by faint lines converg-ing from minute pores or depressions 

 at the marg-ins ; mouth very wide, edg-e thickened, contracted towards the base, and 

 the lower lip forming a shallow sinus or nearly straigiit. A broadly elliptical 

 avicularium placed obliquely on each side of the mouth. 



Reference —P. H. MacGillivray, Tr. Roy. Soc. Vict., Nov., 1885. 



Port Phillip Heads. 



The only specimen I have seen is in the hemeschara form. It 

 is not complete, measures three-eighths of an inch across, and is 

 remarkable for the small amount of calcareous matter, being very 

 thin and translucent. 



Explanation op Figtire. 



Plate 186. — Fig. 3, portion of specimen, magnified. The middle zooecium is probably 

 formed by the fusion of two. 



Plate 186, Fig. 4. 

 SCHIZOPORELLA LATISINUATA (Hincks). 



Description. — Zoarium encrusting. Zooecia large, broad, ."separated by raised 

 thickened margins, surface ])unctate and perforated — when recent, covered by a delicate 

 epitheca; mouth arched above, with a wide notch beneath, not contracted at its 

 opening; edge of mouth slightly thickened. Ooecia large, globose, granular, or 

 perforated, frequently personate. 



Reference. — Hincks, Ann. and Mag. Nat. Hist., Aug^., 1882. 



Port Phillip Heads. 



The form of the mouth in the figured specimen diflfers some- 

 what from that given by Mr. Hiucks, the sinus in the lower lip 

 being narrower and deeper, and the border of the mouth thinner. 



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