132 
CERIOPOEID^. 
D. 3646. Two zoaria: one is a flat nodule 14 x 13 mm. in diameter and 
7 mm. thick. The second is 10 x 7 mm. in diameter and 15 mm. 
thick. The apertures are very irregular in size. Neocomian— 
Hilsconglomerat. Berklingen. SaemannColl. The original label 
with the specimens identifles them as Alveolites micropora. 
D. 3645. A nodular zoarium 13 x 8 x 10 mm. in diameter. The apertures 
are •2 mm. in diameter and suh-pentagonal in shape. They have 
probably been increased in apparent size and angularity as the 
ends have been worn down. Xeocomian — Hilsconglomerat. 
Berklingen. Saemann Coll. Figd. PI. IX. Fig. 3. 
3. Reptomulticava heteropora (Homer), 1839. 
Synonymy. 
Alveolites heteropora^ Eomer, 1839. Verst, nordd. Ool. : Xachtrag, p. 14, 
pi. xvii. flgs. 7, 8. 
non Radiopora ,, pars,^ d’Orbigny, 1854. Bry. Cret. p. 993, pi. 781, 
figs. 13-16. 
,, ,, ,, Canu, 1902. Bry. foss. i., Coll. Camp. : Bull. Soc. geol. 
Fr. ser. 4, vol. ii. p. 12. 
Liehenopora {Radiopora) heteropora, pars, 1890. Bev. p. 383. 
non Seteropora tuberosa, Bomer, 1840. Verst, nordd. Kr. p. 23. 
,, Polytrema suhtuberosa, d’Orhigny, 1850. Prod. Pal. vol. ii. p. 94. 
Fig. 33. — Reptomulticava heteropora', x 1 |-. B. 3653.^ 
Diagnosis. 
Zoarium nodular, massive ; often with a pitted surface. The 
zoarium may {fide Homer’s figure iN'o. 7) begin as a disc 
attached to a foreign body. In adult zoaria the surface is 
irregular and hummocky. 
The zoarium is composed of layers usually about 1 mm. thick. 
Apertures circular, crowded, about *l-*2 mm. in dia. They are 
often in lines, and in places the arrangement of the apertures 
is regular (cf. Hig. 34). 
^ The two references included by d’Orhigny in 1854, which I refer to Repto- 
multicava heteropora, are those of Bomer, ‘ 1836,’ and the Polytrema subtuberosa, 
d’Orh., 1854, hut non d’Orh., 1850. 
