Mr. A. W. Waters on Australian Bryozoa. 191 



by Busk for Oncliopora hirsuta (Quart. Journ. Microsc. Sci. 

 vol. iii, pi. iii. fig. 5), but may occur in all parts of a colony, 

 and is by no means confined to the neighbourhood of a joint. 



The specimens from Bondi Bay, Adelaide, and Darnley 

 Island are all more delicate than those from Naples, but the 

 sculpturing is the same, and, so far as these small fragments 

 enable me to form an opinion, I do not see any reason for 

 separating them. Both Prof. MacGillivray's figure from 

 Port Phillip Heads, and a specimen sent to me as Onchopora 

 tuhulosaj Busk, from Tasmania, agree with those from 

 Naples ; the same seems to be the case with the Tuhucel- 

 laria opuntioides of the ^ Challenger ' Report, from St, Paul's 

 Eocks, N. Atlantic ; and I do not understand why Mr. Busk 

 separates this from the Mediterranean form, 



Loc. Fossil : Eocene ; Miocene ; Pliocene of Europe, vari- 

 ous localities. Living : Mediterranean ; Madeira ; Tasmania j 

 N. Atlantic ; Victoria ; Adelaide ; Bondi Bay, N. S. W. ; 

 Darnley Island, Torres Straits, 10-30 fath, 



48. ScMzoporella marsupifera, Busk, 



ScMzoporella marsupifera, Busk, ' Cliallenger ' Report on the Polyzoa, 



pt. XXX. p. 165, pi. xxii. fig. 14; Waters, Quart. Journ. Geol. Soc. 



vol. xliii. p. Go ; Hincks, Ann. & Mag. Nat. Hist. ser. 6, vol. xix. 



p. 315. 

 Schizoporella lineoUfera, Hincks, Ann. & Mag. Nat, Hist. ser. 5, 



vol. xvii. p. 267, pi. ix. fig. 10. 



The Port Jackson specimen is without any ovicells, and no 

 spines are apparent. The surface-pores, which are numerous, 

 are elongate, with the longer axis usually pointing towards 

 the oral aperture. Mr, Hincks speaks of the pores being 

 stellate, which is not the case in the Australian specimen, 

 and Mr, Busk calls the surface granular, so that it seems to 

 be subject to considerable variation. Operculum granular. 



Loc. Fossil : Waipukurau (N. Zealand) . Living : Marion 

 Island, 50-75 fath. ; New Zealand ; Adriatic ; Bottle-and- 

 Glass Rocks, Port Jackson, 8 fath. 



49. Schizoporella triangular Hincks. 

 (PI. VI. fig. 3.) 



Schizoporella triangula, Hincks, Ann. cfe Mag. Nat. Hist. ser. 5, vol. viii.- 

 p. GO, pi. ii. figs. 4, 4a ; Busk, Rep. Cliall. Polyzoa, p. 167. 



A specimen from Port Jackson is small and only composed 

 of young cells, which are merely punctured without being 

 nodulated ; but this is also the case in the young cells of a 

 fine specimen from Port Western, in which the older cells 

 show the usual structure of the. species. In old cells the 



