them arc rather deep, about 2 mm* } the diameter of the more nearly 
circular one® tangos from 3*5 to very slightly more than 4 asm.} the 
distance between adjacent calicos is fro ran mere dividing ridg® to 
2 mm., the calicular edges, . however, are unusually distinct. Around 
each calico and joining adjacent ones are equal, acute costa©. On the 
sides near the lower edges, ih© calicos flatten, become larger and more 
• fr<i> / • 
distant, are eithes* circular or faintly hexagonal in outline. Diameter 
f o,r 
from 4.5 to 5 mm.} distance apart , fr<m$ to 2 mau } the rang® in the 
distance apart is the same as on the top, but the cal ice® are more uni- 
formly separated* The costae are distinct, low, and own. 
The number of septa© to a cal ice is the same for both the top and 
sides, ranging from S6 to a few over 30. They are relative!! thin, 
i.©*, not @® thick .as the width of the- inter septal loculi} they are 
thickened at the wall, forming a pseudo-theca., and are the principals 
thickened on their inner ends, bearing distinct p&lifom lobe®,. The 
primaries and secondaries are subequal, extend to the columella, and 
are pal if® reus-} tertiarles shorter and thinner within the cal ice} 
quaternaries, when present, still smaller. 
Columella only slightly developed* 
The preceding, description is based on a single specimen, Ho,* ! of 
the table. The principal variation shown by th® other specimen, is in 
the distance apart and ©is© of the cal ices, and the number of septa* 
In specimen Ho. 3 (ss© PI. , figs. 5, the call fee are usually about 
.75 snsu apart., their diameter ranges from 3*5 to 5.7 mm* » as would be ex- 
pected, the calicular outlines & r @ polygonal} there are, on the larger 
calicos, as many as 40 septa} the fourth cycle, however, seems never to 
b© complete* P&lar thickenings can be seen on the larger septa} coin- 
