16 
BULLETIN 125, UNITED STATES NATIONAL MUSEUM. 
deprived of zooecia but they bear unicellular ramifications. In this character 
this new species is close to Terebripora irregularis D’Orbigny, 1839, but it differs 
from it in that the distance between the zooecia is much less than five or six 
times their length. 
Occurrence. —Pleistocene: San Pedro, California (rare). 
Holotype. —Cat. No. 68392. U.S.N.M. 
Genus SPATHIPORA Fischer, 1866. 
SPATHIPOBA LONGICAUDA, new species. 
Plate 27, figs. 12,13. 
Description. —The principal axes are linear and do not bear zooecia; they 
intersect each other at about an angle of 90°. The zooecia are attached to them an d 
are arranged alternately; they are thin, elongated, fusiform and are provided with 
a long peduncle; the angle of insertion is about 45°. 
Affinities. —This species differs from Spathipora sertumFischer, 1863, wide spread 
in the Helvetian faluns of France, in the great length of the peduncle of insertion. 
Occurrence. —Miocene (St. Marys formation): 18 miles above Urbana, Middle¬ 
sex County, Virginia (very rare). 
Holotype. —Cat. No. 68393, U.S.N.M. 
SPATHIPORA LONGIRIMA, new species. 
Y 
Plate 47, fig. 3. 
Description. —The canalicules are delicate, rectilinear, branching at an angle 
varying from 45° to 90°. The zooecia are conical, attached directly to the canal¬ 
icules, without a peduncle. The apertura is terminal, orbicular, with a very long 
rimule prolonged over almost all the frontal. 
Affinities. —This species differs from Spathipora cacullata in which the form is 
identical, in its very long rimule. It differs from Spathipora longicauda in the ab¬ 
sence of a peduncle to the zooecia. 
Occurrence. —Pliocene (Waccamaw marl): Waccamaw, River, Horry County 
South Carolina (rare). 
Holotype. —Cat. No. 68394, U.S.N.M. 
SPATHIPORA CUCULLATA, new species. 
i 
Plate 27, fig. 14. 
Description. —The canalicules are delicate, deeply buried in the surface of shells; 
the ramifications are little oblique. The zooecia are conical, in the form of a cornet 
of paper; their apertura is at the level of the shell, and their peduncles, attached to 
a canalicule, are deeply buried and very short. 
Affinities. —Of the preceding species, Spathipora longicauda, we know only the 
perforations left by the zooecia. In the present one, on the contrary, the zooecium 
is entire because it is entirely embedded in the shell substance. We have no know¬ 
ledge of the mechanism employed by this species in perforating the shell. 
Occurence. —Miocene (Yorktown formation): Beulahland, King and Queen 
County, Virginia (rare). 
Holotype. —Cat. No. 68395, U.S.N.M. 
