lO SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. »9 



central portion irregularly papillate, peripheral portion smooth, showing almost 

 no tendency to become saddle-shaped. 



Vertical section shows the general thickness, the central lenticular body, and 

 the thin periphery ; central portion with very numerous pillars, increasing in 

 diameter toward the surface; lateral chambers crowded between the pillars, 

 very numerous in the vertical columns and much wider than high; equatorial 

 chambers increasing in diameter toward the periphery, the outer margin convex 

 and with a series of fine pores. 



Horizontal section shows the equatorial chambers, which are polygonal; the 

 outer margin strongly convex; pillars subpolygonal, with the lateral chambers 

 making irregular polygonal meshes between them, toward the periphery the 

 lateral chambers making up the entire test as the pillars decrease in number. 



Diameter up to 24 mm; thickness in center 4.5 mm. 



Type specimen (U.S.N.M. no. 328193) from station 3478, Nuevitas, Cuba, 

 collected by A. C. Spencer. Other specimens apparently this species occur at 

 7666, Sierra Guaso, northeast of Guantanamo, collected by N. H. Darton. 



The species was based on microspheric specimens. I have had a 

 vertical and a horizontal section cut of specimens selected from the 

 type material, and they are illustrated by plate 2, figures 1-3. Since 

 the illustrations are clear, it is not necessary to describe the sections 

 in detail. The species is large; the specimen of which the vertical 

 section is figured is about 22.5 mm in diameter, and its thickness 

 through the center is 4.35 mm. 



The equatorial chambers are large, spatulate, either short or 

 moderately long. In some chambers the radial diameter, in others 

 the transverse diameter, is the longer. The dimensions of chambers 

 can be measured on the figure, which is enlarged 20 diameters. 



The lateral chambers are rather regularly arranged in tiers, with 

 strongly developed' pillars over the central part of the test. 



L. subraulinii in many of its features resembles L. gcorgiana 

 Cushman. The pillars in L. georgiana are heavier, thicker, and the 

 lateral chambers are taller and more open. 



It was stated in describing LepidocycUna novitasensis that at one 

 time I thought that the specimens now referred to that species might 

 represent the megalospheric generation of L. suhraidinil, but that I 

 had come to doubt such a relationship. The specimen represented by 

 plate 3, figure i, is a megalospheric specimen of LepidocycUna s.s., 

 and from a comparison of its structure with that of L. subraulinii, it 

 appears to me that it is probably the megalospheric form of L. suh- 

 rauUnii, and I am tentatively so identifying it. But there will be doubt 

 regarding the affinities of such specimens until larger collections from 

 the type locality, Nuevitas, Cuba, have been obtained and studied. 



