50 A MONOGRAPH OF THE TERTIARY POLTZOA OF VICTORIA. 



1. F. lusoria, Waters. PI. VI., fig. 4. 



Membranipora lusoria, Waters, Q.J.G.S., 1881, p. 324; 1883, p. 434. 



Zooecia alternate in four or more longitudinal series, elongated; margins 

 sharply raised, smooth; aperture occupying about half the area, expanded and 

 rounded above, rounded below, narrower at the middle; lamina calcareous, smooth 

 Avicularia large, elevated, sessile at the base of a zooeciuni, opening upwards. 



S.P. ; M.C. ; B. ; B.R. 



The avicularia more resemble those of Menipea and Scrupocellaria than those 

 usually found in the Mernbraniporidse. 



2. F. articulata, Waters. PL VI., fig. 5. 



Membranipora articulata, Waters, Q.J.G.S., 1882, p. 264; Farcimia appen- 

 diculata, Hincks, A.M.N.H., March, 1883 ; McG., P.Z.V., 178. 



Branches divided into distinct, articulated internodes. Zooecia quadriserial, 

 elongated, surrounded by a raised smooth margin, somewhat pointed above and 

 angular below, the sides being straight ; lamina smooth, narrow on the sides and filling 

 the lower fifth ; aperture rounded above, slightly contracted and straight below. A 

 small avicularium on each side opposite the top of the aperture, supported on a 

 thick raised base extending obliquely on the side of the zocecium. At an articulation 

 the internodes connected by two tubes from opposite series of zooecia, between which 

 the intermediate series are intercalated. 



M.C; W.P. (W.). Living. Australia. 



In recent specimens the zooecia are broader and the sides not so straight. For a 

 full description of recent specimens, including that of the peculiar avicularia, I may 

 refer to those of Hincks (A.M.N.H.) and the P.Z.V. The identity of the recent and 

 fossil forms, already pointed out by Waters in a paper on the fossil cheilostomata of 

 New Zealand, would scarcely be recognised without calcining the former. 



F. oculata, Busk, s.p. PL VI., fig. 6, 7. 



Nellia oculata, Busk, B.M.C., Pt. I., p. 18 ; C.P., Pt. I., p. 27 ; Smith, P.B., 

 Pt. II., p. 3; McG., P.Z.V., 51; Membranipora oculata, Waters, Q.J.G.S., 18S3, 

 p. 434. 



Branches very slender, articulated. Zooecia quadriserial, elongated, the upper 

 part projecting forwards; aperture occupying almost the whole area, the margins of 

 which are thickened and slope inwards ; at the base of the zooecia one or two pairs of 



