10 Mr. A. W. Waters on Australian Bryozoa. 
Schizoporella mucronata, Smitt. (Pl. II. fig. 9.) 
Hippothoa mucronata, Smitt, Floridan Bryozoa, p. 45, pl. viii. fig. 169. 
In the Green Point specimen there is a semicircular raised 
ridge below the aperture. The aperture is about 0°12 millim. 
wide, and on the operculum there is a very distinct, elongate, 
semitransparent area. In young cells there is a row of pores 
round the edge of the zocecium; the ovicell is small, raised, 
globular, but seldom mucronate. 
S. simplex, Johnst. (S. Johnstont, Ridley), dredged by the 
‘Challenger’ between Fayal and Pico, has a similar ridge 
below the aperture in the ovicelligerous cells, and these are 
very similar to cells of the present Australian specimens; but 
the species differ in the first only having the ridge on ovicelli- 
gerous zocecia. 
Loc. Florida, 29 fath.; Green Point, Port Jackson. 
Schizoporella filocincta, Rss. (Pl. I. figs. 17, 18.) 
Lepralia filocincta, Reuss, “ Bry. (Est.-Ung. Mioc.” Denkschr. Ak. 
Wissensch, Wien, vol. xxxiii. p. 178, pl. viii. fig. 4. 
Schizoporella filocincta, Pergens, “Bry. du Tasmadjan,” Bull. Soc. 
Malac. de Belgique, vol. xxii. p. 14. 
Zoarium inecrusting. Central zocecia erect, the outer ones 
decumbent; shell thick, with a few larger pores. The 
oral aperture is large, clithridiate. There are a few semicir- 
cular avicularia between the zocecia, but they do not occur 
generally. The ovicells are wide and short, not very much 
raised, covered with pores similar to those on the surface of 
the zocecia. 
At first I thought this was Cellepora megasoma of Mac- 
Gillivray, as it corresponds with some of the figures, and it 
is not impossible that this is what MacGillivray first described 
under that name. 
Loc. Living: Green Point, Port Jackson. Fossil: Mio- 
cene of Forchtenau and Belgrade. 
Schizoporella lata, MacG. 
Schizoporella lata, MacG. Trans. Roy. Soc. Vict. vol. xix. p, 182, 
pl. i. fig. 7; Zool. Vict. dec. xiv. p. 146, pl. exxxviii. fig. 2. 
This differs from S. ambita, Waters, in having a much 
narrower ovicell, evenly punctured, and in having a small 
triangular avicularium immediately below the aperture. 8. 
lata is very much like Lepralia tenella, Rss. 
Loc. Port Phillip (Victoria) ; Green Point, Port Jackson. 
