218 
BULLETIN 106, UNITED STATES NATIONAL MUSEUM. 
Occurrence. — Middle Jacksonian: Wilmington, North Carolina (common); 
Near Lenuds Ferry, South Carolina (rare). 
Upper Jacksonian (Ocala limestone) : Old Factory, 1| miles above Bainbridge, 
Georgia (rare). 
Cotypes. — Cat. No. 63976, U.S.N.M. 
DIPLOPHOLEOS SAGITTARIUM, new species. 
Plate 34, fig. 8. 
Description.— The zoarium is incrusting. The zooecia are elongate, indistinct, 
confluent through their mural rims. The crvptocyst is very shallow, oblique 
toward the opesium, finely granular, much longer than the opesium ; the polypidian 
convexity is elevated to the level of the opesial denticles; the opesiular openings 
are large, round, deep, and are almost true opesiules; the opesium is semilunar, 
narrowed below by two very prominent denticles bounding the upper part of the 
two opesiules. The onychocellarium is very large, having the form of a leaf of 
Sagittaria; the distal submandibular area is much developed. The opesium is 
oval, the point at the top with two long denticles inserted on the proximal margin. 
The ovicell is an indistinct, distal convexity. 
. n • Zow=0.70-0.80-0.90mm. 
Measurements. — OnycliocGll&riiini 7 r\c\A 
J lon= 0.24 mm. 
Affinities . — This species differs from Diplopholeos sagittellarium in the size 
of its onychocellaria and in the two opesial denticles of this organ. 
Occurrence. — Middle Jacksonian: Wilmington, North Carolina (common); 
Rich Hill, Crawford County, Georgia (common). 
Holotype. — Cat. No. 63977, U.S.N.M. 
DIPLOPHOLEOS PARVULIPORUM, new species. 
Plate. 34, figs. 9, 10. 
Description. — The zoarium incrusts bryozoa. The zooecia are small, elongated, 
ogival, distinct, or confluent through their mural rims. The cryptocyst is shallow, 
oblique to the opesium; the polypidian convexity is elevated to the level of two 
very prominent denticles; the opesiules bounded by the polypidian convexity and 
by the denticles are almost complete. The ovicell is endozooecial and is a large 
distal convexity. The onychocellarium is larger than the zooecium; its opesium 
is elliptical, sometimes denticulated below, its submandibular area distally is very 
large and presents the form of a leaf of Sagittaria. 
Measurements . — Opesium of 1 7^ <9=0.06 mm. Zooecium ^ ,3= 0.32-0.36 mm. 
zooecium\Zo=0.08 mm. I?s=0.24mm. 
Opesium of fAon-=0.l7mm. „ , ... !Lon=0.52 mm. 
onychocellarium 1 lopn=0. 08-0. 10 mm. >ny ° 10Ce armm jzm=0.l7mm. 
Affinities. — This species is very close to Diplopholeos sagittellarium and differs 
from it solely in its small dimensions. The dimorphism is little apparent on our 
specimens. 
