42 EXPEDITION ANTARCTIQUE BELGE 



setiform prolongation, also in having a projecting peristome. It may be the C. cornuta MacG. (') 

 described fossil from Victoria, but the avicularia do not seem to quite correspond. C. projecta 

 would, on account of the raised inferior border of the peristome, belong to Reginella of Julliex, 

 but a genus based upon such an unsatisfactory character, as a slight protubérance on the 

 inferior border cannot be retained. 



Habitat. — Exp. Antarct. Belge. 



N os 563, 567, 571, 5gi, 5g6, Tangles VII. Lat. 70 23' S.- Long. 82°47' W. ; 480 met. ; 

 +0.8 C. 



Pièces from 567, on stalk of seaweed and some on Cellepora horneroides nov. 



Hiantopora monoceros (Busk) non Reuss 



Leprcdia monoceros Busk, IJrit. Mus. Cat., p. 72. pi. XCIII, figs. 5, 6. 

 Cribvïlina monoceros Mai Gillivray, Zool. of Victoria, dec. XIX, p. 319, pi. 1S7, fig. 6. 

 Hiantopora monocei MacGiixivray, Tert. Polyzoa of Victoria, p. 62, pi. VIII, fig. 22. 



For other synonyms see Miss Jelly's Catalogue. This cannot be considered specifically identical with 

 Forma, larvalii Mac< r. 



In a spécimen from i3g there are very long suboral glands near the zoœcial wall, and 

 the ovaria are situated in various positions, most are near the distal end consisting usuallv 

 of four ovarian cells. There may be ovaria cluse to the latéral walls at the distal end, formed 

 of two ovarian cells, and in one case there is an ovarium at the proximal end, consisting of 

 two cells. In the frontal pores there is a small denticle giving the pore a more or less kidnev- 

 shape, which is coramon to H. Liversidgei T. Woods and some other species. 



Habitat. — Straits of Magellan 10-20 fath. (B.), and 6-10 fat h. (Ridley) ; Tierra del 

 Fuego ig fath. (B.), and spécimens in British Muséum 3o fath. ; Falkland Island 10 fath. (B.) ; 

 Cape Horn 40 fath. (B.) ; Baie Orange (Julliex) ; Challenger Stations 3o3, i325 fath.; St. 3i3, 

 55 fath. ; St. 3i5, 12 fath. ; St. 3o3, 3i3, 3i5 are ail South American ; St. 253, 3i25 fath. 

 N. Pacific ; and spécimen from Station 320, 600 fath. off Argentine (not mentioned bv Busk) 

 is probably a variety ; Victoria (Mac G.) New South Wales (W.) ; Xapier, Wanganui, Foveaux 

 St., Dusky Sound ; New Zealand (Hamiltox). 



Fossil : Muddy Creek (Victoria) ; Bairnsdale (Gippsland) ; Xapier and Petané (New 

 Zealand). 



Exp. Antarct. Belge. 



N° i3g. Porto Torro, Ile Navarin, Magellanes, Chili. 



Microporella Malusii (Aud.) 



(PL III, figs. \a-d) 



Spécimens from Porto Torro, Ile Navarin, Chili, hâve the zoœcia larger and the oral 

 aperture about one third larger than British and Mediterranean spécimens. There is a line 

 forming an area within which the stellate pores occur ; in thèse pores the teeth do not join 



(1) MacGii.livray, Tert. Polyzoa of Victoria, p. 58, pi. VIII, figs. 10-12. 



