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



New South Wales. Fossil : Mt. Gambier (South Australia) ; 

 Napier (New Zealand). 



Beania quadricornuta, Hincks. 



Diachoris quadricornuta, Hincks, Ann. & Mag. Nat. Hist. ser. 5, vol. xv. 



p. 245, pi. ix. fig. 2. 

 Diachoris maxilla, Jiillien, Biyozoaires du Cap Hotti, p. 74, pi. vii. 



fig. 3, pi. xi. fig. 4. 



In my specimens from Victoria and New South Wales 

 the number of supraoral spines is variable, there being fre- 

 quently two long ones besides the four short ones. 



Hah. Victoria ; Cape Horn ; Green Point, Port Jackson. 



Beania hirtissima, var. conferta, MacG. 

 (PI. II. figs. 12-14.) 



Beania conferta, MacGillivray, Trans. Eoy. Soc, Victoria, vol. xxii. 

 p. 180, pi. i. fig. o. 



In specimens from Green Point the zoarium forms a thick 

 mat over the shell or stone upon which it grows. The zooecia 

 are semierect and the very stout oral spines are in marked 

 contrast to the finer row of spines curved over the front of 

 the zooecia or those at their sides. The position of these 

 spines is, however, the same as in both the typical hirtissima 

 and the form rohusfa from Naples *, though in these the 

 distal spines are but very slightly larger than the frontal and 

 lateral ones. There are usually about ten stout oral spines, 

 and the frontal and lateral spines only occur on the distal 

 half of the zoa?cia. There are very numerous small radical 

 tubes, in this respect differing from the B. conferta described 

 by MacGilHvray. The ovicell occurs as an inflation on the 

 dorsal suriacc behind the aperture (fig. 14). The distal por- 

 tion of the operculum is double. 



The distal end of the zooecium being erect and all the con- 

 nexions occurring in the proximal half support MacGilli- 

 vray 's view tliat Diachoris should be merged in Beania. 



It will be seen that a similar erect growth of part of the 

 zooecium obtains also in Diachoris crotali, B. 



This is the only Beania in which I am sure of having seen 

 an ovicell. One is described by Busk in Diachoris crotali as 

 '' small, conical, superior," and a small conical protuberance 

 is figured ; and this occurs in specimens in my collection ; but 



* B. hirtissima, var. I'obusia, H., and var. cylindrica, H., both occur in 

 the Eay of Naples, and the B. hirtissima var. ttjpica is found at Rapallo, 

 North Italy. 



