C ATARI A. 
399 
CAVARIA, Ton HagenoTT, 1851. 
[Bry, Maastr. Kr. p. 53.] 
SrXONYM. 
Cavarinella, Marsson, 1887. 
Diagnosis. 
Petaloporidae with hollow stems ; the axial caTity is diTided 
into compartments by series of tahnlae. Apertures usually 
irregular in arrangement. The zooecia are crowded. Maculae 
in’egularly arranged. 
Type Species. 
Cavaria ramosa^ you Hagenow, 1851. Bry. Maastr. Kr. p. 53, 
j)l. Ti. fig. 1. 
Affinities. 
The Talue of this genus appears doubtful. D’Orbigny, Hamm, 
and Marsson include it among the genera with simple tubular 
zooecia, although Ton Hagenow placed it next to Ceriopora. The 
former course seems to me the better. Hamm describes the axial 
caxity of C. pustulosa as due simply to the growth of an encrusting 
Bryozoan round a soft stem ; but Marsson’ s figures, as well as some 
British Museum specimens, show that this Tiew is untenable. 
Cavaria ramosa, Ton Hagenow, 1851. 
Synonymy. 
Vavaria ramosa, von Hagenow, 1851. Bry. Maastr. Kr. p. 53, pi. vi. fig. 1. 
,, ,, Hamm, 1881. Bry. mastr. Ob. -Sen. p. 25. 
Cavarinella ,, Marsson, 1887. Bry. Biig. : Pal. Abb. vol. iv. p. 19, pi. i. 
fig. 6. 
Cavaria irregularis, d’Orbigny, 1854. Bry. Cret. p. 797. 
Diagnosis. 
Zoarium of thick or thin stems, which branch dichotomously. 
Apertures sometimes in irregular transTcrse series or quite 
irregularly scattered. Maculse few in number, in circles 
round the apertures. 
Distribution. 
Senonian — Maastriebtian : Maastricht ; Falkenberg ; Bemelen. 
Campanian : Kiigen. 
