Zoology.-] NATURAL HISTORY OF VICTORIA. {_Polyioa. 



PLATES 35, 36, 37, 38. 

 Plate 35, Fig. 1. 



LEPRALIA CIRCINATA (P. McG.). 



[Genus LEPRALIA (Johnston). (Sub-kingd. Mollusca. Class Polyzoa. Order Infundi- 

 bolata. Sub-order Cheilostotnata. 3?am. Membraniporidae). 



Gen Char. — Polyzoary adnata, crustaceous or occasionally suberect, calcareous, usually 

 spreading circularly. Cells contiguous or connected, front entirely calcareous.] 



Description. — Cells oval, smooth, with a row of stellate pores round the margin 

 and extending above the mouth. Mouth with two or three spines above, lower lip 

 nearly straight with a small notch. Ovicell moderately large, smooth, slightly 

 denticulate on the upper margin. 



Reference. — P. H. MacGillivray, Trans. Roy. Soc. Vict., 1868. 



Queenscliff, on sea-weed. 



Allied to L. Malusii, from which it differs in the absence of the 

 central lunate pore, in the notch in the lower lip, and the very faint 

 dentation of the ovicell. 



Explanation op Figures. 



Plate 35. — Fig. 1, specimen, natural size. Fig. la, portion, magnified. Fig. 16, small por- 

 tion, more highly magnified. 



Plate 35, Fig. 2, 

 LEPRALIA CECILII (Aud.). 



Description. — Cells large, distinct, irregularly hexagonal or rounded above, 

 surface perforated, the perforations being arranged in more or less regular lines and 

 usually leaving a clear space down the centre ; mouth arched above, straight below, 

 with a large nearly circular sinus. Ovicell large, round, slightly granular. 



Reference. — Lepralia Cecilii, Busk., Micros. Journal, v. 173 ; L. crystallina, 

 P. H. MacGillivray, Trans. Roy. Soc. Vict., 1868. 



QueenscliflF; Warrnambool, Mr. Watts. 



In this very beautiful species the cells are of large size, irregular 

 in shape and arrangement. They are distinct and frequently 

 separated by narrow smooth spaces, with occasionally a slightly 

 elevated line. The whole surface, except a narrow space down 



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