Zoologij.'i NATURAL HISTORY OF VICTORIA. [Polyzoa. 



Plate 26, Fig. 3. 

 MEMBRANIPORA LINE AT A (Linn. sp.). 



Description. — Cells oval ; margin with a series of spines, usually 5 on either 

 side and one inferiorly, bending' close over the aperture. Avicularia scattered, with 

 a large spoon-shaped mandible. Ovicell galeate, obscurely carinate, and frequently 

 with the lower half separated, anteriorly, by a slightly prominent semilunar ridge. 



Rkkerence. — Flii.itrn lineata (Linn.) Systema, 1301 ; Busk, Cut. Alar. Pol. 

 Brit. Mus., p. 58, t. Ixi., f. 1. 



Sclinapper Point ; Port Fairy, Mr. Castwood ; rare. The spe- 

 cimen figured, which is on a calcareous nodule attached to the 

 root of a Laminaria, is a good deal worn, and most of the spines 

 have been rul)bed off. Li other specimens they are perfect, ai*ch 

 forwards and almost entirely cover the aperture. 



Explanation of Figures. 



Plate 2(i. — Fig. 3, specimen, n.atiiral size. Fig. 3a, same, highly magnified, showing the 

 ovicells over the mouths in tlie middle of tlie figure, and the characteristic spines on the sides 

 and lower part of the aperture, looking, when broken, like tubercles, as shown on the right-hand 

 Bide of the figure. 



Plate 26, Fig. 4. 

 MEMBRANIPOPvA ROSSELII (Audouin sp.). 



Description. — Cells ova!, separated by raised finely beaded margins; lower 

 part of cell filled in by a calcareous, granular cjtjiansion. 



Kefekence. — Busk, Cat. Mar. Pol. Brit. Mus., p. 59, t. c. f. 2. 



Encrusting earthy nodules attached to the roots of alga?. A 

 small elegant sjiecics. The calcareous expansion generally occupies 

 about two-thirds of the cell, and is minutely granular, the granula- 

 tions diminishing in number towards the upper part. 



I have considerable doubt in referring this to M. Rosselii, and 

 am not satisfied that it is not a form of 31. Lacrolxii. 



Explanation of FionRES. 

 Plate 20. — Fig. 4, specimen, natural size. Fig. ^a, same, highly magnified 



[34] 



