90 Mr. A. W. Waters on 
It seems as though both in Spherophora and Batopora 
the zocecia have grown over the primary in all directions, 
and this we see in Orbitulipora excentrica, Seg. (see page 92), 
aud in O. petiolus. 
The ovicell of Spherophora is large, round, raised, and open 
in front. 
Referring to the two specimens from Batesford or Muddy 
Creek, it is well to recall the fact that Haswell mentions a 
form with a flat base without giving it a name. The fossil 
Celleporu serrata, MacG., also has a flat base and clearly 
belongs to Spherophora. a 
Loc. Holborn Island, Queensland (H.); Percy Island, 
Queensland, 11 fath., sent by Haswell; N.E. coast of 
Australia, sent by Brazier; South Australia (Maplesione). 
Fossil. Curdies Creek, S8.W. Victoria; Mt. Gambier; 
Aldinga and River Murray Cliff (all A. W. W.), Schnapper 
Point, Bird Rock, Corio Bay, Waurn Ponds (all MacG.), 
Cape Otway, Spring Creek, Muddy Creek, Shelford, Fyaus- 
ford, Mornington, Mitchell River (Maplestone). 
Orbitulipora excentrica, Seguenza. (Text-figs. 2,4, b,c.) 
Orbitulipora evcentrica, Seguenza, “ Le Formaz. Terz.,” Atti Reale 
Accad. dei Lincei, ser. 3, vol. vi. p. 130, pl. xil. figs. 22, 22a 
(1879); Neviani, ‘Bri. neog. delle Calabrie,” Pal. Ital. vol. vi. 
p. 188, pl. xvii. figs. 15, 16 (1900). 
Orlitulipora excentrica, var. flabellata, D’Ossat & Neviani, “Coral. e 
Bri. Neog. di Sardegna,” Boll. Soc. Geol. Ital. vol. xv. p. 18 ,1897). 
I had written a description of specimens from Mazzurega 
as O. excentrica, nov., before remembering that Seguenza 
had described a species with this specific name, which, 
although larger and with more zoccia than the Mazzurega 
fossils, is apparently the same species. Mine are about the 
same size as Neviani’s var. flabellata. ‘There are several 
specimens from material collected from Mazzurega, near 
Fumane in the Veronese, N. Italy, sent to me by Professor 
Parona. The age was considered Bartowian, but is now 
called Priabonian. The bilaminate depressed zoaria are 
sinall, about 2-38 mm. in diameter, with a stalk (as it has 
been called in O. petiolus), from which the zocecia spread 
out in fan-shaped form, more or less in rows. The stalk or 
pedicle is for attachment, as is the case with the pits of 
Batopore and Orbitulipore, and it sometimes gives a sub- 
triangular appearance to the zoarium. 
The zocecia are very distinct and rounded, as seen from 
above, and in the younger ones the aperture occurs about 
the centre of the apparentiy nearly round erect zoccia, 
