RADIOFASCIGERA, CYRTOPORA. 
53- 
CYRTOPORA, von Hagenow, 1851. 
[Bry. maastr. Kr. p. 21,] 
Synonyms. 
Cyrtopora, von Hagenow, 1851; d’Orbigny, 1853; Winkler, 1864; Ubagha, 
1879 ; Hamm, 1881 ; Pergens, 1887, 1890 ; Ulrich, 1900. 
Diagnosis. 
Osculiporidae with erect cylmdrical branches, with clusters of 
apertures opening on all sides of them. 
Type Species. 
Cyrtopora eUgmis, Ton Hagenow, 1851. Bry. maastr. Kr. p. 22, 
pi. i. fig. 14. 
Affinities. 
This genus corresponds among the Osculiporidae to such a form 
as Plethopora verrucosa, Hag.,’ among the Fasciporidae ; the latter 
differs by its cancellate zoarium, while the zooecial groups are 
larger. Cyrtopora differs from Fasciculipora by having the groups 
of apertures on the sides of the branches instead of their being a|l 
terminal. It has somewhat the aspect of an Entalopliora, but differs 
by the zooecia being arranged in groups instead of singly. 
Cyrtopora elegans, von Hagenow, 1851. 
Synonymy. 
Crytopora elegans, von Hagenow, 1851. Bry. maastr. Kr. p. 22, pi. i. fig. 14. 
,, ,, d’Orbigny, 1853. Bry. Cret. p. 674, pi. 743, figs. 1-3. 
,, ,, Winkler, 1864. Musee Teyl., Cat. Pal. livr. ii. p. 214. 
,, ,, Ubaghs, 1879. Descr. Geol. Pal. Limb. p. 58. 
,, ,, Hamm, 1881. Bry. mastr. Ob. -Sen. p. 45. 
,, ,, Pergens & Meunier, 1887. Bry. gar. Faxe ; Ann. Soc. 
malac. Belg. vol. xxi., Mem. p, 222. 
,, ,, Pergens, 1890. Eev. p. 377. 
Diagnosis, 
Zoarium of cylindrical branches, which are simple or dichotomous, 
of moderate size, and contain many zooecia. Branches thin, 
2-3 mm. in diameter. 
Apertures polygonal or round, situated on irregularly scattered, 
raised prominences, containing from three to eight apertures 
each. 
Gonoecium an ovoid protuberance near the end of the zoarium. 
’ Yon Hagenow. Bry. maastr. Kr. 1851, p. 15, pi. v. fig. 10. 
