ZooJog!/.-\ NATURAL HISTORY OF VICTORIA. IPolyzoa. 



Plate 156, Figs. 1 and 2. 



LAGENIPORA TUBERCULATA (McG.)- 



[Genus LAGENIPORA (Hincks). (Sub-kingdom MoUusca. Class Polyzoa. Order 

 Infundibulata. Sub-order Cheilostomata. Family Celleporidse.) 



Gen. Char, — Zoarium encrusting ; zooecia flask-shaped ; mouth sub-circular, without a 

 sinus.] 



Description. — Zooecia large, flask-shaped, erect or semi-erect, surface studded 

 with large, hollow, pointed, entire, or perforated tubercles ; mouth rounded or oval, 

 with a thickened projecting, peristome. 



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



Port Phillip Heads. 



In this species tlie zooecia are very large and covered with 

 numerous raised tubercles, which are entire and pointed, or not so 

 prominent and perforated. These perforations do not seem to be, 

 as I at first supposed, caused by attrition, as in some cases the 

 margins are unequal, thick, and lip-like. The peristome is much 

 produced, cylindrical, rough, with small granulations, and the 

 circular or oval mouth has a thickened margin. I have not seen 

 avicularia or ooecia. 



Explanation op Figures. 



Plate 156. — Fig. 1, three zocecia, showing pointed entire tubercles, and others open, less 

 prominent, and almost pore-like. Fig. 2, a single zooecium viewed laterally, to show the 

 peristome. 



Plate 156, Fig. 3. 

 LAGENIPORA NITENS (McG.). 



Description.- — Zooecia oblique or decumbent at the edge of the zoarium, more 

 erect towards the centre, smooth ; mouth in the marginal zooecia with a tubular 

 peristome, separated by a narrow, constricting collar; orifice with a spinous process 

 on each side, between which is a small avicularium, carried in a semi-spiral tube, 

 widened above and ending in a clavate projection ; mouths of other zooecia circular 

 or sub-circular, with a small oval avicularium on one side ; vicarious avicularia 

 broadly spatulate. 



Reference.— P. H. MacGillivray, Tr. Roy. Soc. Vict, Nov. 1886. 



[ 209 ] 



