Marine Polyzoa of Victoria. 205 



Verrucularia, von Suhr. 

 Zooecia elliptical or rounded, convex, bordered by a narrow, 

 chitinous line, alternate in longitudinal series, separated laterally 

 by an intercellular substance. Mouth a little below the summit. 

 No avicularia. Ooecia 1 

 V. dichotoma, £usJc sp. Q.J.M.S., N. Ser. I., 155. 



(= Frustrella dichotoma, Hinchs. A.M.N.H., May, 1884.) 



Family. MEMBRANIPORIDiE. 



Zoarium encrusting, expanded, and continuous, or in branched 

 single series, or erect in a single or double layer, membrano- calcar- 

 eous. Zooecia usually (not always) separated by raised margins ; 

 front entirely or partly occupied by a large area, which is wholly 

 membranous or partially filled in by a thickened lamina. Operculum 

 incomplete. Avicularia sessile or immersed. 



Pyripora, B'Orhigny. 

 Zoarium adherent. Zooecia distinct, thick, calcareous, convex, 

 not separated by raised lines, narrowed below, in branched single 

 series, or forming continuous expansions; a large oblique area in 

 front, filled by a thin membrane. 

 P. catenularia, Jameson sp. B.M.C., Part I., p. 29 ; B.M.P., 



p. 134; P.Z.V., 106. 

 P. crassa,i/'6^. P.Z.V., 106. 

 P. polita, Hinchs. P.Z.V., 106. 



Electra, Lamouroux, 

 Zoarium encrusting, or filiform and erect, or foliaceous. Zooacia 

 elongated, narrow below, closely adherent together, lower part con- 

 vex, covered with small discs or foraminate ; area oval or rounded, 

 occupying the whole width of the zocecium above, deep, with 

 thickened margins ; one or more large whip-like spines (occasion- 

 ally replaced by an avicularium) below the margin of the area, and 

 a variable number of short, sharp spines on its circumference. 

 E. pilosa, Linn. sp. B.M.e., Part IL, p. 56; B.M.P., p. 137; 

 P.Z.V., 106. 



( = Membranipora pilosa, Auctt.) 



E. flagellum, M^G. P.Z.V., 106. 



Port Phillip Heads, J.B.W. 



Bathypora, M'G. 



Zoarium encrusting. Zooecia in longitudinal series, quadrate, 

 separated by raised lines; lower part calcareous, convex, much pro- 

 jecting, smooth, and imperforate ; area occupying the whole width of 

 the upper part, deep, membranous, with a narrow, smooth lamina below. 

 B. nitens, Hincks sp. A.M.N.H., July, 1880. 

 (= B. porcellana, M'G. P.Z.Y., 106. = Membranipora nitens, 

 Hinchs.') 



Portland, CM. 



