1 62 CERIOCAVA. 



LIST OF SPECIMENS. 



D. 27-9. Great Oolite. Ancliff, near Bath. Daniells Coll. 



D. 40. ,, ,, ,, Cunnington Coll. 



D. 44-7. Lincolnshire Limestone. Stamford. S. Sharpe Coll. Figd. PI. IX. 



Fig. 3. 



D. 1830. Bathonian. Normandy. 



D. 2228. Great Oolite Limestone. Skillington. Presented by J. W. Gregory. 



D. 2181. ,, ,, ,, Hampton, near Bath. Brodie Coll. 



INDETERMINABLE KECOBD. 



Ifaplocem'a? bathonica (D'Orhigny). 



Syn. Melicertites bathonica, D'Orbigny. 1852, Pal. franq. Terr. cret. t. v. p. 617. 

 ,, ,, Pictet, 1857, Traite Pal. ed. 2, t. iv. p. 122. 



Distribution. Bathonian : Calvados, Prance. 



CERIOCAVA, D'Orbigny. 



SYNONYMY : 



Ceriopora, pars, Goldfuss, et auct. 

 Cava, pars, D'Orbigny. 

 Nodicava, pars, D'Orbigny. 

 Eeptomulticava, pars, D'Orbigny. 

 Meptouodicava, D'Orbigny. 



Diagnosis. Entalophoridae in which the zoarium consists of 

 thick, massive stems, each of which is composed of a large number 

 of zorecia. The zooscia are funnel-shaped. The apertures crowded; 

 the peristomes flush. The axis of the zoarium consists of fine 

 zooecia, densely packed. The outer zone consists of zooacia which 

 are usually reflexed and of much greater diameter. 



Type species. 1 Ceriocava corymlosa (Lamouroux), 1821. 



Affinities. This genus includes a series of erect, thick, dendroid 

 bryozoa, usually included in Ceriopora. The latter genus, however, 

 must be taken as defined by Blainville ; and thus the Cretaceous 

 C. micropora, Goldf., is the type. This species is a massive form, 



1 D'Orbigny does not mention any species as typical. He included thirteen 

 species in the genus. I therefore take the first recognizable species in his list, 

 as it is the oldest and best known. 



