44 
FASCIGEEIDJ;:. 
be adnate. From the Xeoconuan species A. neocomiemis, d’Orb.,^ it differs by 
the simple form of its zoarium ; in the Xeocomian species the zoarium is 
massive and somewhat meandriform. 
CORYMBOPORA, Michelin, 1846. 
[Icon. Zooph. p. 213.] 
Synonyms. 
Corijmhosa, d’Orbigny, 1853. 
Fasciculipora, pars, 1850; Pergens, 1890. 
Fungella, pars, von Ilagenow, 1851. 
Diagnosis. 
Fascigeridae with simple or brancdied zoarium. The distal end 
or ends are always expanded, and either flat-topped, concave, 
or convex. The middle of the upper surface is occupied by 
crowded, irregular, young zooecia. On the margin there is 
a band of larger zooecia. The sides of the stem are covered by 
an epizoarial layer, marked by numerous pores, the remnants 
of the apertures of dead zooecia. 
Type Species. 
Corymhopora menardi, Michelin, 1846. Icon. Zooph. p. 213, 
pi. liii. fig. 10. Cenomanian : Le Mans, France. 
Affinities. 
The main problem in regard to Corymhopora is the nature of the 
lateral pores on the stem. D’Orbigny at first regarded them as 
insignificant, and therefore in 1850 treated the genus as a synonym 
of FascicuUpora, a view still held by Pergens. D’Orbigny, however, 
subsequently regarded the stem pores as more important, and 
accepted Corymhopora. The pores seem to be due to the nearly 
complete filling of the apertures of the dead zoaria by epizoarial 
material. The genus differs from FascicuUpora by the expanded or 
clavate ends of the branches. 
, Smitf* has used this genus as the type of a family — the 
Corymboporidse. 
^ D’Orbigny. Bry. Cret. p. 683, pi. 713, figs. 12-14. 
2 F. A. Smitt. Kritisk forteckning bfver Skandinaviens Hafsbryozoer : 
Ofvers. k. Vet. Akad. Fork. 1865, p. 407. Bryozoa marina in regionibus 
arcticis et borealibus viventia : ibid. 1867, p. 447. 
