140 
SEMIFASCIPOEA. 
to suggest that it is tnily Diastoporidan. In many of the thick 
zoaria assigned to ‘ Jlesenteripora ’ the zooecia are almost as 
crowded. The genus is not represented in the Museum collection. 
UNREPRESENTED AND DOUBTFUL SPECIES. 
1. americana, Gahb & Hoi-n, 1862. 
Syn. Fascipora americana, Gabb & Horn, 1862. Foss. Polyz. N. Amer. : 
Journ. Acad. Xat. Sci. Phil. ser. 2, vol. v. 
p. 165, pi. XII. fig. 54. 
Char — Allied to F. pavonina. Orb., but with more robust, clavate branches, 
and the peristomes less raised. 
Distrib. — Timber Creek and Mullica Hill, Xew Jersey. 
2. flexuosa (d’Orhigny), 1853. 
Syx. Fasciporina Jlexuosa, d’Orbigny, 1853. Bry. Cret. p. 695, pi. 744, 
figs. 16, 17. 
,, ,, Pergens, 1890. Revision, p. 377. 
Char. — Zoarium of thick, very crumpled, and almost mmandriform fronds. 
Zooecia long ; peristomes distant. Widely scattered. 
Distrib. — Senouian — Sautouian : Saintes, Charente-Inferieure. 
Coniacian : Tours and Joue, Iiidre-et-Loire. 
Turonian : Lisle and Veudome, Loir-et-Cher. 
3. pavonina (Michelin), 1845. 
Syn. Biastopora pavonina, Michelin, 1845. Icon. Zooph. p. 218, pi. liii. fig. 17. 
Fntahphora „ d’Orbigny, 1850. Prod. Pal. vol. ii. p. 176. 
,, ,, d’Orbigny, 1851. Bry. Cret. pi. 620, figs. 7-12. 
Fascipora ,, d’Orbigny, 1853. Ibid. p. 693. 
,, ,, Marsson, 1887. Bry. Riig. : Pal. Abh. vol. iv. p 22. 
,, ,, {exc, syn.), Pergens, 1890. Revision, p. 377- 
Char. — Zoarium cylindrical or flabelliform, very variable in shape. Zooecia 
long: walls corrugated. Peristomes irregularly arranged, and distant from 
one another. 
Distrib. — Senonian : Riigen. 
Cenomanian: Le i\lans. 
? SEMIFASCIPORA, d’Orhigny, 1853. 
Diagnosis. 
Zoarium cupuliform, fixed by its base ; from the axial tube 
a series of costal ridges is given ofi : the apertures occur 
mainly on the outer edges of these ridges. Zooecia typically 
Diastoporidan in character. 
