136 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



Our ovicelled specimen resembles Marsson's figure, but we are not 

 certain that Hagenow's species is identical with it. The lack of 

 specimens has not permitted us to make thin sections and to verify 

 the exact nature of the genus CavarinelJa,, but it appears to differ 

 from Parascosoecia only in its hollow zoarium, a character without 

 great importance. 



Cavana Hagenow, 1871, as originally held, is only a zoarial form 

 for this author classified here all the arborescent species with hollow 

 zoaria. Marsson, 1887, chose for the type Cavaria pustulosa Hage- 

 now, 1870, a species without mesopores. Gregory, 1899, undid the 

 work of Mai-sson and chose for the type Cavaria ra^iosa Hagenow, 

 1851, which Marsson in 18S7 had selected as the type of his genus 

 C avarinella. Examination of the figures and sections does not show 

 the identity of the two species, so we have adopted provisionally Mars- 

 son's genus and on a former page have discussed the genus Cavaria. 



W^^ 



Fig. 40.— Filicrisiim verticillata D'Orbigny, 1852. 



A. Longitudinal section, X IG, illustrating the dactylethrae of the dorsal. 

 B-D. Three transverse sections, X 16. 

 Cretaceous (Campanian) : Longuesse, France. 



Occurrence. — Cretaceous (Danian) : Herfolge (Seeland), Den- 

 mark. 



Geologic distribution. — Cretaceous (Campanian) : Island of Rii- 

 gen, Germany ; Cretaceous (Maastrichtian) : Maastricht, Holland. 



Pledotype.— Cat. No. 68976, U.S.N.M. 



Genus FILICRISINA D'Orbigny, 1852. 



1852. Filicrisina d'Obbigny, Pal^ontologie frangaise, Terrain Cr^tace, vol. 



5, p. 910. 

 1887. Phormopora Marsson, Bryozoen der schreibkreide der Insel Riigen, 



Paleontologische Abhandlungen, vol. 4, p. 32. 



