BRYOZOA FROM S.W. VICTORIA, AUSTRALIA. 



323 



surprising ; but I have also a specimen of Caber ea from Mount 

 Gambier with all the operculum remaining. 

 Loc. 0. ruclis is found in Bass's Strait (B.). 



15. Membranipora lineata, L. 



I have a small fragment of Membranipora consisting of two elon- 

 gated cells with large area, with an acute avicularium above the 

 cell, with beak pointing downwards, about sixteen large spines 

 round the cell, and two smaller ones just above the border on the 

 distal extremity. This seems to vary from the living lineata only 

 in having more spines ; but from so small a fragment it is impos- 

 sible to speak with certainty. 



16. Membranipora catenularia, Jameson. 

 For syn. see Hincks's Brit. Polyz. p. 134. 



The specimens are small, consisting of only a few cells, but cor- 

 respond exactly with recent specimens I have from the Semaphore, 

 Adelaide, Australia. 



Living: Northern seas, Brit., Medit., Canada, Australia. Fossil : 

 Pliocene of England and Italy. 



17. Membranipora cylinb-rlformis, sp. nov. Plate XVII. fig. 74. 



Zoarium cylindrical. Zocecia not distinctly separated ; area con- 

 tracted above, expanded below, filled in for about a third of its 

 length with a calcareous granular lamina. Aperture subcircular, 

 flattened below, margin much raised ; oral spines, two large and two 

 small ones ; small acute triangular avicularium above the area, and 

 larger more elevated ones below placed transversely. 



From the material marked "Yarra Yarra" I have only found a 

 small piece ; but from Mount Gambier I have larger cylindrical pieces. 

 The form of the zocecia is very similar to that of M . Flemingii. 



Loc. Mount Gambier (Loncl. Geol. Soc. coll. and Eth., fun., coll.). 



18. Membranipora macrostoma, Ess. (in Vincularice forma). Plate 

 XIV. figs. 18, 19. 



Cellaria macrostoma, Ess. Foss. Polyp, d. "Wiener Tert. p. 64, 

 pi. viii. figs. 5, 6. 



Biflustra macrostoma, Ess. Die foss. Anth. u. Bry. der Sch. von 

 Crosaro, p. 274 (62), pi. xxxiii. figs. 12, 13 ; Ak. Wien, vol. xxix. 



? Biflustra papillata, Stol. Foss. Bry. Orak. p. 154, pi. xx, 

 figs. 14, 14a. 



Flustrellaria macrostoma, Manzoni, I Brioz. foss. del Mioc. d' Aus- 

 tria ed Ungh. p. 67 (19), pi. xiii. fig. 46 ; Ak. Wien. vol. xxxvii. 



Zoarium subcylindrical, or much compressed, a number of vari- 

 cells. Zocecium distinct, with a well-marked border. Aperture 

 elongate oval, occupying nearly the whole of the front of the cell ; 

 sides of the area folded inwards, so that the aperture is in a deep 

 depression. Small raised avicularia above the zocecium in a hori- 

 zontal or diagonal position. Distal rosette plates two, near the front 

 of the distal wall. 



