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



Plate 138, Fig. 1. 

 SCHIZOPORELLA PUNCTIGERA (McG.). 



[Genus SCHIZOPORELLA (Hincks). (Sub-kingdom Mollusca. Class Polyzoa. Order 

 Infundibulata, Sub-order Cheilostoinata. Family Escharidae.) 



Gen. Char. — Zoarium encrusting, adnate, or erect, and uni- or bi-laminate. Zooecia closely 

 adherent to each other. Lower lip with a median notch.] 



Description. — Zooecia ovate or quadrate, arranged in linear, radiating- series, 

 smooth or more frequently minutely granular; mouth rounded above, nearly straight 

 below, with a narrow, sharply defined sinus ; 4-7 spines on the upper margin ; a 

 minute avicularium on an elevation below the mouth. Ocecia rounded, thickly 

 punctate, and with a smooth rim. 



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

 Port Phillip Heads. 



Explanation of Figure. 



Plate 138. — Fig. 1, small group of zooecia, showing also ocecia, magnified. In this specimen 

 the surface of the zooecia was almost quite smooth ; it is usually finely granular, as in the next 

 species. 



Plate 138, Fig. 2. 

 SCHIZOPORELLA LATA (McG.). 



Description, — Zooecia quadrate or oval, arranged in linear series ,• front slightly 

 convex, granulo-punctured ; mouth large, with a rather wide, shallow-pointed sinus 

 in the lower lip ; below the mouth a small elevation bearing a minute avicularium. 

 Ooecia large, rounded, thickly punctate. 



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



Port Phillip Heads. 



These two species are very closely allied, but are readily dis- 

 tinguished by the sinus in the lower lip, which in S. lata is wide 

 and rather shallow, while in S. punctigera it is narrow and sharply 

 cut. Busk's Challenger S. mar su pud a seems to be S. lata. 



Explanation of Figure. 

 Plate 138. — Fig. 2, small portion of specimen, magnified. 



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