88 Mr. A. W. Waters on 
Reuss’s figure was difficult to understand, but there is no 
doubt that specimens in my collection are this species, and 
also on further cleaning up the specimen from Pap Falvi 
Patak sent by Pergens the characters can be made out. 
The zocecia are raised, the oral aperture is straight below 
and is contracted at each side, so that of course the aperture 
was filled by the operculum, whereas in Cupularia the 
opening is opesial. At the distal end of the zoccium there 
is an appendage, but whether avicularian or vibracular it is 
difficult to say, though probably avicularian. The opening 
to this appendage is apparently round, but details cannot be 
deciphered. 
There is no pit and the primary is a small zcoecium 
surrounded by six zocecia (Pl. VI. fig. 7). 
The ovicell is very wide and raised, similar to what I 
figured * in Fedora excelsa, Kosch., and is placed beyond 
the avicularium—a position so far from the oral aperture 1s 
difficult to explain. 
Loc. Val di Lonte and Granella (Rss ), Eocene of Hun- 
gary); Pap Patak; Pap Falvi Patak ; Marne de Buda (Per- 
gens), Bocca di Sciesa, Colle Berici, and Malo, Viceutine 
(CA. coll), 
Mamillopora crassilabris (Kosclinsky). 
Stichoporina crassilabris, Koschinsky, Bry. Stid-Bay. p. 66, pl. vil. 
figs. 1-4 (1856). 
A specimen of Mamillopora from between Grotte and 
Sarego, near Lonigo, Vicentine, has a great thickening above 
the oral aperture, sometimes rising in one or thrce processes, 
the middle one of which is an avicularium or vibraculum, 
and it looks like the appendage of M. bidentata very much 
enlarged and erect. No other appendage is visible, but the 
state of the fossil in not satisfactory. A small specimen of 
M. simplex + from Brendola has a thickening above the oral 
aperture, also a large triangular avicularium by the side. 
There are six zoccia round the primary and further 
cleaning recently has enabled better study. May not this 
thickening occur in various species of the group under certain 
conditions ? 
Loc. Gotzreuth (K.), between Grotte and Sarego. 
* “N. Ital. Bry.,” Quart. Journ. Geol. Soc. vol, xlvii. p. 29, pl. iv. 
fie. 6 (1891). 
+ Loe. cit. fig. 18. 
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