Mr. A. W. Waters on Australian Dryozoa. 9 



Schizoporella auriculata^ Hass. 



Loc. Living : European seas ; Madeira ; Azores ; Gulf of 

 St. Lawrence ; Victoria ; Green Point, Port Jackson, New 

 South Wales. Fossil : Pliocene of Italy and Sicily ; Mount 

 Gambier and Bairnsdale (Australia) ; Napier and Tommy 

 Gully (New Zealand). 



Schizojyorella auricalata^ Hass., var. 



There is also a ScMzoporella which in most cases has only 

 a round avicularium below the aperture ; but in a few zooacia 

 there are besides two avicularia, one at each side of the aper- 

 ture, as in S. sanguinea, Norraan, var. (Hincks, Ann. & 

 Mag. Nat. Hist. ser. 5, vol. vi. p. 382). The pores are small 

 slits; and should it be requisite to give it a name,j^s^s?};>c>ra 

 would be appropriate ; but as there are no ovicells, it is for the 

 present left as a variety of auriculata. 



Schizoporella Ceciliiy Aud. 



Mr. Hincks (Ann. & Mag. Nat. Hist. ser. 5, vol. xix. 

 p. 302) hesitates to identify this with Heller's Lepralia Peru- 

 giana^ as he considers that has an avicularium ; but Mr. Hincks 

 is mistaken in supposing that Heller alludes to an avicularium ; 

 what he described was the " appendage " of the operculum as 

 a '^ kleines, gelbes Ziihnchen." 



Loc. Britain ; Mediterranean ; Red Sea ; Japan ; Queen 

 Charlotte Islands (British Columbia) ; Victoria ; Green 

 Point, Port Jackson. Fossil : River-Murray Cliffs (South 

 Australia). 



ScMzoporella hiserialis^ Hincks. (PI. 11. fig. 11.) 



Schizoporella hiseriaUs, Hincks, Aun. & Mag. Nat. Hist. ser. 5, vol. xv. 

 p. 250, pi. vii. fig. 8. 



In a specimen from Green Point the shape and size of the 

 zooecia, the sculpturing, and the ovicells are just the same as 

 in the New Zealand specimens ; but there are numerous 

 spines arising from the distal end of the zocecium, often as 

 many as forty or fifty, and these do not seem to be arranged 

 in series, though one might at first take them for three rows. 



The pores on the surface of the zooecia in the specimens 

 from both localities are internally slightly denticulated. Schi- 

 zoporella arachnoideSj MacG., is probably nearly related to 

 this ; but the zooecia are smaller, the ovicell is elongate, there 

 are not the large pores on the surface of the zooecia, and there 

 is only a single row of oral spines. 



