NORTH AMERICAN EARLY TERTIARY BRYOZOA. 299 



It differs from Puellina bispinosa in that the ordinary zooecia are deprived 

 of avicularia and in the much smaller nvicell. 



Occurrence. Vicksburgian (Marianna limestone) : One mile north of Monroe- 

 ville, Alabama (rare) ; near Claiborne. Monroe County, Alabama (rare) ; west 

 bank of Conecuh River, Escambia County. Alabama. 



Jacksonian (Zeugiodon zone) : Cocoa Post Office, Choctaw County, Alabama. 



Cotypcs. Cat. Nos. 64027. 61259, U.S.5T.M. 



PUELLINA INARMATA. new species. 



Plate 84, fig. 15. 



Description. The zoarium incrusts Orbitoides and bryozoa. The zooecia are 

 distinct, separated by a furrow, elongated, elliptical; the frontal is only slightly 

 convex; the costules are fine, radial, separated by very small lacunae, and orna- 

 mented with a double row of very fine granules; there are nine or ten pairs; in 

 the shield there is a very visible lumen pore. The aperture is semilunar, trans- 

 verse, larger on the ovicelled zooecia. surrounded by a smooth peristome. The 

 ovicell is imbedded in the distal zooecium. improminent, always closed by the 

 operculum; very rarely there is a small, simple avicularium in the zooecial junction 

 angles. 



.-.. . . 



Measurements. Aperture , ,, . Zooecia i7 nn . A ori 



[fa=0.06 mm. U3=0.24-0.30mm. 



Affinities. The total absence of avicularia characterizes this species. How- 

 ever, sometimes on the peristome a very small pore is visible and again, in some 

 of the zooecial junction angles there is a small, round, and simple avicularium. 



The double row of small granules which ornament the costules also characterize 

 this species; however, this character is inconstant and many of the zooecia have 

 some costules sculptured as in Puellina calamorpha Reuss. This last species has 

 two very constant, oral avicularia. 



Occurrence. Vicksburgiau (Marianna limestone) : Murder Creek, east of 

 Castlebury, Conecuh County, Alabama (rare) ; west bank of Conecuh River, 

 Escambia County, Alabama (rare). 



Holotype.Csk. No. 6-1260, U.S.N.M. 



Genus DISTANSESCHARELLA D'Orbigny, 1852. 



1S52. Distansescharella D'OREIGXY, Paleontologie Fnni<;;iise. Terrain CitftfK-e. Bryozoaires, 

 p. 451. 



In the interval which separates the zooecia there may be noted very small 

 accessory cellules hardly a fourth the size of the others but of the same form. 

 These smaller zooecia are always primoserial; there are always two or three. of 

 them following a preceding normal zooecium. 



Genotype. Distansescharella (Ccllepora) familiaris Hagenow, 1839. 



Range. Senonian- Jacksonian. 



