194 BULLETIN 125, UNITED STATES NATIONAL MUSEUM. 
Forma BERENICEA Lamouroux, 1821. 
BERENICEA FLABELLUM? Reuss, 1847. 
Plate 27, fig. 17. 
1847. Diastopora flabellum, Reuss, Die fo3silen Polyparien des Wiener Tertiarbeekens, Ilaidingers 
naturwissenschaftliehe Abhandlungen, vol. 2, pi. 7, fig. 9. 
The specimens from the Miocene of Virginia which we have referred doubtfully 
as above have the general zoarial aspect of Reuss’s species, but without direct 
comparisons we are unable to assert their identity positively. The measurements 
of the American specimens are as follows: 
Measurements .— 
Peristome...'-0.24 mm. 
Diameter of the orifice_ 0.18 mm. 
Distance between the peristomes.... 0.80-0.90 mm. 
Separation of the peristomes_ 0.S0 mm. 
Occurrence.— Miocene (Yorktown formation): Weavers Pond, Gloucester 
County, and 3 miles southwest of Petersburg, Virginia (rare). 
Geological distribution. —Miocene of the Vienna Basin. 
Plesiotype. —Cat. No. 68728, U.S.N.M. 
ATELESOPORA, new genus. 
Greek; Ateles, incomplete; in allusion to the lack of peristome. 
The tubes are expanded and have no peristome. 
This form of tubes was rather common in the Paleozoic era and during the 
Cretaceous, and it has been noted in many families. It is ver}^ rare in the Tertiary 
formations and in the recent seas, but its study has never been undertaken 
seriously. 
Our generic definition is incomplete, since we are ignorant of the ovicell. In 
giving a generic name to this group, our main purpose is to call the attention of the 
zoologists to these singular remains of ancient periods. 
ATELESOPORA REPTANS, new species. 
Plate 26, figs. 4-6. . 
Description. —The zoarium creeps over shells, in salient masses, more or less 
flabelliform. The tubes are adjacent, irregular, polygonal. The zone of growth 
is thick and irregular. 
Occurrence. —Miocene (Duplin marl): Muldrows Mills, 5 miles south of Mayville, 
Sumter County, South Carolina (rare); and Natural Well, 2 miles southwest 
Magnolia, Duplin County, North Carolina (rare). Miocene (Yorktown formation): 
3 miles southwest Petersburg, 1 mile northeast, and 1 mile west of Suffolk, 1 mile 
west of Fort Nonsense, Gloucester County, and Beulahland, King and Queen 
County, Virginia (rare). 
Cotypes. —Cat. Nos. 68729-68731, U.S.N.M. 
