NORTH AMERICAN LATER TERTIARY AND QUATERNARY BRYOZOA. 
91 
Variations. —The genus Puellina as limited by Jullien, 1886, and Levinsen, 
1909, does not appear to us as well characterized as it is based on the presence of 
papillae whose physiologic function is not very evident. The relationship of the 
operculum to the ovicell constitutes for us generic characters of a greater import¬ 
ance in the Costulae as in the other Cheilostomata. It is in this feature that the 
present species is quite different from Puellina ( Cribrilina ) radiata, for the ovicell 
is never closed by the operculum. According to our views of classification it will 
be necessary to form a new genus for this type. 
On our specimen the suboral pore is often replaced by a tubercle. The costules 
are fine and the lacunae are arranged in concentric series. 
Occurrence. —Miocene (Choctawhatchee marl): Jackson Bluff, Ocklocknee 
River, 25 miles southwest of Tallahassee, Florida (very rare). 
Geological distribution.— Helvetian of Italy (Seguenza); Astian of Italy 
(Seguenza); Sicilian of Italy (Seguenza, Neviani); Quaternary of Italy (Waters, 
Seguenza, DeStefani). 
Habitat. —England, Mediterranean, Florida. 
Plesiotype. —Cat. No. 68528, U.S.N.M. 
PUELLINA CRASSILABIATA, new species. 
Plate 29, fig. 7. 
Description. —The zoarium incrusts oysters. The zooecia are elliptical, regular, 
very little elongated, distinct, convex, separated by a furrow; the radial costules 
number 12 and taper toward the center, they are garnished with three large lumen 
pores and separated by four lacunae of diminishing size. The aperture is semi¬ 
lunar; the peristome is salient, very thin, and bears three hollow spines; a thick 
transverse lip borders the proximal edge of the apertura, between the two small 
oral avicularia. The ovicell is large, globular, salient, punctured by small, scattered 
pores; it opens by a special orifice in front of the oral lip. 
Measurements. 
. , \ha = Q.12 mm. 
-Apertura 
mm. 
„ . |i 0 = O.5O mm. 
Zooecia 7 _ __ 
l £2 = 0.35 mm. 
Ajfinities. —The apertura of the ovicelled zooecia is wider and measures 0.12 mm. 
in width. The ovicell is not closed by the operculum and the passage of the eggs 
is protected by the wide oral mucro. This species does not belong, therefore, to 
the genus Puellina, since the two functions of the passage of the eggs and the escape 
of the larva operate in an absolutely different fashion than in Puellina radiata 
Moll, 1803. There are six dietellae. 
In the presence of two small oral avicularia, it resembles the following species: 
It differs from Puellina puncturata Busk, 1859, in its elongate and non transverse 
ovicell. It differs from Puellina calomorpha Reuss, 1866, in its apertura non- 
transverse and garnished with less than five spines. It differs from Puellina 
parisiensis Canu, 1917, in its thin nontransverse peristome, garnished with three 
spines and not with two tuberosities. 
Occurrence. —Pliocene (Waccamaw marl): Waccamaw River, Horry County. 
South Carolina (rare). 
Holotype.— Cat. No. 68529, U.S.N.M. 
