NORTH AMERICAN EARLY TERTIARY BRYOZOA. 671 



BERENICEA BREVISSIMA. new species. 



Plate 106, fig. 3. 



Description. The zoarium is orbicular and incrusts shells ; the zone of growth 

 is very narrow. The tubes are indistinct, very erect, quite short, pressed against 

 each other. The peristome is thin, orbicular, oblique. 



Diameter of the peristome 0.10 mm. 



Measure me n ts. 



Distance between the peristomes 0.32 mm. 



Separation of the peristomes 0.35 mm. 



Occurrence Midwayan (Clayton limestone) : One mile west of Fort Gaines, 

 Georgia (very rare). 



Holotype.C&t No. 65420, U.S.N.M. 



BERENICEA INGENS, new species. 



Plate 117, fig. 5. 



Description. The zoarium is flabelliform and incrusts bryozoa. The tubes are 

 very large, punctate and horn-shaped. The peristome is thin, orbicular or ellipti- 

 cal, salient. 



Diameter of the peristome 0.18 nun. 



Measurements. 



Distance between the peristomes 0.80 mm. 



Separation of the peristomes 0.42 mm. 



Occurrence. Lower Jacksonian: Three and one-half miles southeast of Shell 

 Bluff post office, Georgia (very rare). 

 fJolotype.C&t. No. 65294, U.S.N.M. 



BERENICEA BENJAMINI, new species. 



Plate 117, tigs. 8, 0. 



Description. The zoarium incrusts shells; it is orbicular or irregular; the zone 

 of growth is very small. The tubes are distinct, cylindrical, scattered, striated 

 transversally. The peristome is thin, salient, orbicular; the peristomie is much 

 bent upward and erect. 



Diameter of the peristome 0.20 mm. 



Distance between the peristomes 0.60-0.70 mm. 



j Separation of the peristomes 0.80 mm. 



The specific name is in honor of Dr. Marcus Benjamin, of the United States 

 National Museum, who has taken an interest in our work since its inception, and to 

 whom we are indebted for many courtesies. 



Occurrence. Middle Jacksonian: Eutaw Springs, South Carolina (rare). 

 t. No. 65296, U.S.N.M. 



Measurements. 



