ART. 22. CYGLOSTOMATOUS BRYOZOA — CANU AND BASSLEK. 15 



The ovicell is short, elliptical, somewhat elongate and cordiform. 

 The oeciostome is transverse, elliptical, turned toward the bottom; 

 it is isolated or adherent to a tube ; it is anterior and not terminal 

 with the ovicell prolonged a little above it. 



The verticelled specimens are the lowest branches of the zoarium ; 

 they are larger and almost always poorly preserved and broken. 

 The specimens referred to E. vendimiensis^ are the upper branches. 

 The number of branches of a zoarium must be very considerable ; we 

 are still ignorant of the form of the base and mode of fixation. 



In transverse section the tubes are polygonal, very small and very 

 numerous at the center, large at the circumference, all indicative of 

 .very long tubes. 



In longitudinal section the tubes are very long, quite thin at the 

 base, and much expanded at their extremity. The walls increase 

 gradually in thickness. 



Geologic distribution. — Cretaceous (Cenomanian) : Le Mans 

 (Sarthe), France. 



Cretaceous (Turonian) : St. Calais, Les Janieres, and Ruille 

 Ponce (Sarthe), France. 



Pleslotypes.— Cat. No. 68906, U.S.N.M. 



MECYNOSCIA STIPATA, new species. 



Plate 1, figs. 14. 1.5. 



1897. Entalophora vendinnensis Canu (not D'Orbigny, 1851), Les Bryo 



zoaires du Turonien des Janieres, Bulletin Soci6t6 G^ologique France, 



ser. 3, vol. 25, p. 152. 

 1897. Entalophora vendinnensis Canu, Les Bryozoaires du Turonien de 



St. Calais, Bulletin Soci6t6 G6ologique de France, ser. 3, vol. 25, 



p. 744. 



Description. — ^The zoarium is cylindrical, bifurcated. The tubes 

 are little distinct, upward bent and salient at their extremities, ar- 

 ranged in quincunx, quite close to one another ; the peristome is round 

 and thin. The ovicell is elliptical, elongate, globular; the oeciostome 

 is as wide as a tube, elliptical, transverse, isolated, turned toward 

 the bottom. 



Diameter of peristome 0.14mm. 



Zooecial width .24 mm. 



Measurements. — ' Distance between orifices .36 mm. 



Separation of the orifices .60 mm. 



Diameter of branches 1.00-1. 50mm. 



Affinities. — This species is quite constant in its exterior characters : 

 only the peristomie is more or less long. It differs from Mecynoeda 

 ramosissima D'Orbigny, 1851, in its larger micrometric dimensions, 

 its more globular and more salient ovicell and its almost terminal 



