NORTH AMERICAN KARI.Y TERTIARY BRYOZOA. 427 



Vicksbiirgian (Red Blurt' clay) : Seven and one-half miles southwest of Bladen 

 Springs. Alabama (common). 



Plesiotypes.Cnt. No. (IJ^'sc,. U.S.X.M. 



CYCLICOPORA FILIFERA, new species. 



riiitf 83, iK's. 17-1 !i. 



Description. The zoarium inrrusts shells. The zooecia are large, elongated, 

 elliptical, distinct, separated by a prominent thread, often quite thick; the frontal 

 is somewhat convex and porous: it is formed of an olocyst with small scattered 

 pores surmounting a tremocyst with larger, corresponding pores. The apertura is 

 orbicular and placed at the base of a large, oblique peristomie; the peristome is 

 thin, salient, sharp, bearing on its proximal border a very small avicularium; in 

 the. peristomie, there is often a verv Miiall mucro. The ovicell is hyperstomial, 

 placed on the distal zooecium, globular, salient; it opens in the peristomie by a 

 small orifice. 



,. (ha 0.20-0.25 mm. . fZs= 0.85-0.95 mm. 



Measurements. Apertura 7 Zooecia< 7 .. ., 



1 la=0.2Q mm. (te=0.5o mm. 



Affinities. We are not quite certain of the genus of this species. The tremocyst 

 in fact, is visible onlj r on the very well preserved zooecia; usually it does not exist 

 and is replaced by a thick pleurocyst deposited between the threads which become 

 very salient (fig. 18) ; finally there is a peristomice which does not correspond to 

 the apertura. 



In this last character, in its <>viee!l which opens into the peristomie, in its 

 small perislomial avicularium this species is not, without analogy with the genus 

 Smittina. Perhaps it will be necessary to make a special genus but the small num- 

 ber of specimens collected does not permit us to do so. 



Occurrence. Vicksbiirgian (Marianna limestone) : Well at depth of 140 feet, 

 Escambia County, Alabama ( very rare ) ; near Claiborne, Monroe County, Alabama 



Cotypes.CuA: Xos. (U2s7. 64288, U.S.X.M. 



CYCLICOPORA LATICELLA, new species. 



Plate r>5. fi. 6. 



Ded'//i/niti. The zoarium incrusts shells. The zooecia are distinct, some- 

 what elongated, very large, wide, elliptical: the frontal is convex and garnished 

 with large tremopores scattered and funnel-shaped. The peristome is salient, com- 

 plete: the apertura and the peristomice are suborbicular. On one of the sides of 

 the zooecia there is a small elliptical avicularium somewhat straightened. 



. f 3= 1.00 mm. 

 Measurements. Zooecia j ^__ JQ mm 



Affinffi'i .v. The only specimen collected has been figured. It bears no ovicell. 

 We classify it here from its apertura and its frontal. But it is evident that these 

 characters are insufficient and that this species could also belong to the Hippopo- 

 dinidae. 



