178 
CEEIOPOKID^, HETEROPORID^. 
Char. — Zoarium small and sessile, with a well-marked constriction above the 
base. It becomes branched by giving off lobate buds. The surface is covered 
with curved ribs, which cross the stem obliquely. The apertures open in tbe 
furrows between the ribs. 
Distrib.i — Cenomanian — Lower Planerkalk : Scbillinge, near Bilin, Bohemia. 
Eemarks. — This species has been confused by the action of von Eeuss in 1874, 
who then reduced it to a synonym of Ceriopora substellata ; but in spite of tbe 
weight to he attached to an author’s opinion of one of his owm species, the 
justice of this decision seems to me most improbable. The specimen figured by 
von Eeuss in 1846 has the characters of a tjqiical Canalipora, and it is difficult 
to understand how any specimen of the species substellata could be misrepre- 
sented into the aspect given by von Eeuss ’s figure of 1846. The specimens 
figured hy d’Orbigny from the Senonian seem to me distinct; the zooecia are 
much larger than in C. mammilla ; the Senonian forms are more allied to 
C. ptjgmea of von Eeuss, which d’Orbigny includes as a synonjun of 
C. mammilla ; but the two forms seem clearly separated by the much larger 
size of the apertures in C. pygmea. The R. mamilla of d’Orbigny seems to 
me most probably {vide p. 148) a form of Reptomulticava digitalis (d’Orb.) ; but 
the question may be left doubtful, as Pergens says the type is a worn specimen 
of a species belonging to some family other than Pergens’ Cerioporidoe. 
3. OStrupi (Pergens & Meunier), 1887. 
SvN. Tuberculipora OStrupi^ Sc M.e\xm.ex, 1887. Bry. gar. Faxe : Ann. 
Soc. malac. Belg. vol. xxi., Mem. p. 220, pi. x, 
fig. 5. 
Ceriopora ,, Hennig, 1894. Br}'. Sver. Krit. ii., Cycl. : Lunds 
Univ. Arsskrift, vol. xxx., Acta Physiogr. No. viii. 
p. 37, pi. ii. fig. 40, and fig. 22, p. 37. 
Char. — Zoarium branched; stems deeply constricted into a series of ovoid to 
piriform bodies. The stem is as much as L8 mm. in thickness across the 
internodes and from -6 to *8 mm. in diameter at the constrictions. The surface 
is crossed by curved, oblique ribs and lines of apertures; Apertures about 
•07 mm. in diameter. 
Distrib. — Danian : Faxoe, Zeeland, Denmark. 
Senonian — Campanian : Stevn’s Klint, north of the town of Lilledalen, 
Faxoe, Denmark. 
Zone of Belemnitella mucronata : Qvarnby, Sweden. 
4. striato -punctata (von Hagenow), 1839. 
Syh. Ceriopora striato -punctata, von Hagenow, 1839. Mon. Eiig. : N. Jahrb. 
p. 283. 
,, ,, von Hagenow, 1846. In Ceinitz, Grundi’. 
Yerst. vol. ii. p. 599. 
^ The species is recorded by d’Orbigny and Canu from the Senonian, and by 
Keeping from the Aptian of Brickhill, Bedfordshire, and Farringdon, Berkshire, 
but in both cases the record is very doubtful. 
