47 



(figs. 12, 13) but sometimes of a semi-elliptical form (fig. 12). In the best pre.served 

 specimens I have found two narrow lateral processes. 



Ooecia have not been found. 



No Kenozooecia. 



A Closure effected by means of a concave lamina has only been found in a 

 few cases (fig. 15). 



The Regeneration takes place in great measure, and in many of the fragments 

 examined the larger part of the zooecia have been regenerated either by new 

 zooecia (figs. 11, 16) or by heterozooecia (figs. 10, 14). 



The Colonies are incomposite, and the cylindrical branches bear c. 14 zooecia 

 in each transverse series. 



Numerous specimens from Fecamp (middle Senonian). 



Meliceritites Vieilbanci d'Orbigny. 



Semielea Vieilbanci d'Orbigny, Bryoz. Crét. p. 630, pi. 0^7, figs. 7, 8. 

 Elea Vieilbanci Gregory, Cretac. Bryozoa p. aOO, fig. 33, pi. 738, figs. 5—9. 

 (1^1. 1, figs. 15, 16.) 



The Zooecia, the dividing ridges of which are often very indistinct, are gene- 

 rally about twice as long as broad, and their surface often presents a saddle- 

 shaped concavity in the direction proximally distally. The broadly rounded, al- 

 most semicircular aperture, which is provided with a narrow and generally indi- 

 stinct oral ledge has a strongly developed peristomial thickening and sometimes 

 takes up the whole breadth of the zooecium in its distal part. Its length is con- 

 tained 3—4 times in the length of the zooecium. The operculum is very convex 

 and presents a distinct flabelliform striation. 



Heterozooecia have not been found. 



Ooecia have been found by Gregory. 



No Kenozooecia. 



The Closure is effected by means of a concave lamina (fig. 16). 



The Regeneration. In most fragments examined a number of zooecia have been 

 regenerated, but the protruding end of the new zooecium only in a few cases pre- 

 sents a half-elliptical aperture, the apertures being in most cases either perfectly 

 closed or transformed into a narrow fissure which is no doubt the rest of the ori- 

 ginal aperture. 



The Colonies are hollow free irregularly branched expansions with cylindrical 

 or compressed branches. Some of the fragments examined show a beginning new 

 layer in the form of one or more circular patches of diflerent extension. 



A number of fragments from Villedieu (Coniacian) and Bruillé-Poncé (Turonian). 



