'YCLOSTO.MATOUS BllYOZOA C'ANU AND BASSLER. 



33 



1899. Cavaria pustulosa Gregoky, Catalogue of Bryuzoa in Department of 

 Geology of British Museum, The Cretaceous Bryozoa, vol. 1, p. 137 

 (cites bibliography and geologic distribution). 



Str-ucture. — Our specimens fi-om Faxe correspond to Hagenow's 

 figures and those from Herfolge to the illustrations given by 

 Marsson. Nevertheless in these two aspects the ovicell is the same. 

 The oeciopore appears to be represented by one or two very small 

 pores, as is usual in the family. 



l-'iG. 5. — Cavaria pustulosa Hageuow, 1851. 



A-D. Hagenow's figures showing a branch natural size ( A) , a portion enlarged 

 \B), the surface further enlarged (C), and the end of the hollow branch (D). 



E. Transverse section, X 12, showing the central zoarial cavity and the thick 

 basal lamella. 



F. The same features as shown in a longitudinal section, X 12. 

 Cretaceous; Maastricht. Holland (A-D) (Maastrichtian) ; Herfolge, Den- 

 mark (E, F) (Danian). 



The longitudinal section indicates short, cylindrical tubes with 

 dorsal gemmation. The transverse section indicates a thick basal 

 lamella. The tubes are so short that the gemmation could be con- 

 sidered as triparietal if the basal lamella was calcified before the 

 tubes. 



Occurrence. — Cretaceous (Danian) : Faxe and Herfolge (See- 

 land), Denmark. Also Maastrichtian at Maastricht, Holland. 



PIesiotypes.---Cat. Nos. (58919, 68920, U.S.N.M. 



