BRYOZOA FROM AUSTRALIA. 687 
Bidiastopora Toetocana, Stoliczka, Foss. Bry. der Orakei Bay, 
p. 100, pl. xvii. figs. 2, 3. 
The zocecial tubes are about 0-08-0°09 millim. in diameter, and 
there is about 0-6 millim. distance between the aperture of a z0c- 
cium and the following one on the same axial line. Some speci- 
mens that I collected from St. Croix and Pontarlier are over 0-1 
millim. in diameter, and I have still larger specimens which are 
identical with Bidiastopora neocomiensis, and sometimes they are 
quite compressed, and these seem in the Jurassic fossils to indicate a 
transition from the 4-millim. Entalophora to the large Bidrasto- 
ora. 
5 A specimen from Curdies Creek is slender (0°5 millim. diam.), 
with only few zocecia round the zoarium; but some specimens from 
Bairnsdale are twice as large, and consequently have more zocecia. 
Loc. Fossil: Valangien, St. Croix and Pontarlier (Jura) 
(4. W.W.). Miocene: Austria and Hungary, and Crosaro, Val di 
Lonte (Rss.); Orakei Bay (S¢.), Curdies Creek, Mt. Gambier, Bairns- 
dale, and Muddy Creek. 
10. FirisPaRsA ORAKEIENSIS, Stol. 
Filisparsa orakeiensis, Stoliczka, Foss. Bry. der Orakei Bay, p. 111, 
pl. xviii. figs. 1, 2. 
The zocecial tubes are about 0:08 millim. in diameter, which is 
about half the size of those of F. tubulosa, from the Mediterranean 
and from Holborn Island, Australia. I now find upon examination 
of specimens, that F. tubulosa, Busk, and /. varians, Rss., are 
closely allied, if not identical. 
In a badly preserved specimen from Mt. Gambier there is a raised 
subglobular ovicell on the dorsal surface, near the bifurcation, with 
the aperture terminal. This ovicell, consisting of a distinct chamber, 
corresponds with that of [dmonea? irregularis, Menegh., while in 
Filisparsa tubulosa the ovicell is on the front surface, and instead of 
being a distinct chamber, is an irregular enlargement. The ovicell 
is only known in these two species of Filisparsa, and possibly when 
more are known they will have to be differently classified. In the 
recent Australian /ilisparsa, the closure, which is near the end of 
the zocecial tubes, has minute perforations just similar to the sur- 
face-pores. 
Dr. Jullien * proposes to make a new genus Veruvia for the Lili- 
sparsa of dOrbigny ; but I do not see what reason there can be for 
this change of name. 
Loc. Fossil: Orakei Bay (Stol.); Curdies Creek, Bairnsdale, and 
Mt. Gambier. 
11. Hornera Fronpicunata, Lamx. 
Hornera frondiculata, Lamouroux, Expos. Méth. p. 41, pl. 74. 
figs. 7, 8,9; Busk, Crag. Polyz. p. 102, pl. xv. figs. 1, 2, pl. xvi. 
* Dragages du Travailleu ; Bryozoaires; Bull. Soc. Zool. de France, t. vii. 
1882, p. 500. 
