720 
BULLETIN 106, UNITED STATES NATIONAL MUSEUM. 
DESMEPLAGIOECIA PLICATA, new species. 
Plate 125, figs. 12-15. 
Description . — The zoarium is bilamellar, formed of folded , irregular, undu- 
lated, flabellate or linear lobes. The fascicles are inconstant, irregular, little 
salient, long, perpendicular to the zoarial margins; the tubes are little distinct, 
isolated on the axis of undulation of flabelliform branches. 
The zone of growth is wide and very fragile. 
Measurements- j geparation of lasciolcs 0 .20 mm. 
Variations . — This species is quite remarkable, but unfortunately we know 
only a small number of specimens of which we have been unable to make a de- 
tailed study. 
The species has the zoarial form of Reticulipora , but very irregular ; the lobes 
are folded on themselves, but they are not elongated and linear. The flabelliform 
specimen is unilamellar. 
Occurrence . — Middle Jacksonian: Wilmington, North Carolina (rare); near 
Lenuds Ferry, South Carolina (rare). 
Upper Jacksonian (Ocala limestone) : Nine miles north of Ocala, Florida 
(very rare) ; Alachua, Florida (very rare). 
Cotypes. — Cat. Nos. 65313, 65314:, U.S.N.M. 
DESMEPLAGIOECIA (ACTINOPORA) BREVIS, new species. 
- Plate 126, figs. 1-3. 
Description . — The zoarium is orbicular and incrusts oysters. The fascicles 
are short , irregular, discontinuous, formed of three or four tubes, very salient, 
quite close together, arranged radially. The tubes are invisible; the peristome 
is thin, orbicular or quadrangular. The zone of growth is invisible, or much 
reduced. 
| Diameter of the peristome 0.12 mm. 
Measurements . — ] Distance between the fascicles 0.09 mm. 
Diameter of the disks 0.70 mm. 
Affinities . — This species differs from Desmeplagioecia tenuissima and D. tenuis 
Reuss, 1869, in its greater peristomial diameter (0.12 and not 0.08 mm.) and in 
the much smaller zone of growth. 
Occurrence . — Upper Jacksonian (Ocala limestone) : Red Bluff on Flint River, 
7 miles above Bainbridge, Georgia (rare) ; Old Factory about H miles above Bain- 
bridge, Georgia (very rare). 
Cotypes. — Cat. No. 65316, U.S.N.M. 
