128 
CEEIOPORID^. 
Diagnosis. 
Cerioporidae with a massive or branched zoarium, composed of many 
layers. The zooecia are short and expand rapidly. Surface of 
zoarium not raised in spines, but may have tuberous processes. 
Type Species. 
Reptomulticava heteropora (Romer), 1839. !N^eocomian : France 
and Germany. This species is more convenient than R. micropora 
as the type, owing to the possibility of confusion between Repto- 
multicava micropora and Ceriopora micropora. 
Affinities. 
The zooecia in this genus differ from those of its ally Ceriopora 
by being shorter and arranged in thin superposed layers. This 
lamellar structure is shown in Fig. 35, p. 133, Fig. 36, p. 134, 
Fig. 39, p. 136, and Fig. 40, p. 140; these figures may 
be contrasted with the section of Ceriopora shown in Fig. 43, 
p. 165. The difference seems fully of generic value. It is true 
that a certain degree of lamination occurs in a true Ceriopora ; 
for as a colony of that genus grows upward and outward, the 
margin of the expanding zoarium spreads beyond the earlier part, 
and thus, when seen from the side, the mass may appear some- 
what banded. The multilamellar structure of Reptomulticava, 
however, is developed throughout the whole zoarium, and not 
only on the growing margin. 
The separation of Reptomulticava and Ceriopora is convenient, 
as it avoids the disturbance of specific names, where, as in the 
case of micropora, the same name has been used in both genera. 
1. Reptomulticava canui, Gregory, 1909. 
Synonymy. 
non Alveolites tuberosa, Romer, 1839. Yerst. nordd. Ool. : Nachtrag, p. 14, 
pi. xvii. fig. 9. 
non Ceriopora {Alveolites) tuberosa, Romer, 1840. Yerst. nordd. Xr. p. 23. 
non ,, tuberosa, Michelin, 1846. Icon. Zooph. p. '208, pi. liii. fig. 1. 
non ,, ,, Xade, 1852. Los. Yerst. Schanzenb. p. 32. 
Tolytrematuberosa,pars,^^Qx\)\%\r^, 1850. Prod. Pal. vol. ii. p. 94. 
Reptomulticava d’Orbigny, 1854. Bry. Cret.p. 1036, pi. 791, figs. 13, 14. 
,, ,, Pergens, 1890. Rev. p. 387. 
,, ,, Canu, 1902. Bry. foss. i., Coll. Camp.: Bull. Soc. 
geol. Fr. ser. 4, vol. ii. p. 12. 
,, canui, Gregory, 1909. Xew Cret. Bry. : Geol. Mag. dec. 5, 
vol. vi. p. 63. 
