12 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 89 



the height of the equatorial chambers increases more rapidly toward 

 the periphery than in L. perundosa. The features mentioned above 

 are shown in the illustrations. 



LEPIDOCYCLINA (NEPHROLEPIDINA?) PERUNDOSA Cushman 

 Plate 4, fig. 6 



1919. Lcpidocycliiia perundosa Cushman, Carnegie Inst. Washington Publ. 291, 



p. 63, pi. II, fig. 8. 



Cushman's original description is as follows : 



Test very much curved in two directions, so that at points 180° from one 

 another the two planes of each set are nearly parallel to one another and nearly 

 at right angles to those of the other set, strongly " saddle-shaped," surface 

 smooth when well preserved, but usually somewhat cancellate, due to erosion. 



Vertical section difficult to obtain on account of the very much doubly curved 

 shape of the test, but shows no pillars ; the lateral chambers about three times 

 as long as high ; central chamber large ; equatorial chambers increasing gradu- 

 ally in size toward the periphery ; their height and breadth about equal. 



Horizontal section, which from the shape of the test can be at best only frag- 

 mentary, show^s equatorial chambers roughly triangular, with the outer surface 

 convexly curved. 



Diameter 8 to 12 mm. 



Type specimen, section (U.S.N.M. no. 328194) from station 3478, Nuevitas, 

 Cuba, collected by A. C. Spencer. 



An illustration of a vertical section of L. perundosa and a copy of 

 Cushman's description of it are introduced for the purpose of com- 

 paring it and L. meinzeri. Notes on the differences between the two 

 species have been made in discussing L. meinaeri. 



LEPIDOCYCLINA (LEPIDOCYCLINA) SUPERA (Conrad) 



Plate 29, figs. 1-3 



1865. Orbilolitcs supcra Conrad, Proc. Acad. Nat. .Sci. Philadelphia, no. 2, p. 74. 



1920. Lcpidocyclina supcra Cushman, U.S. Gcol. Surv. Prof. Pap. 125, p. 69, 



pi. 26, figs. 5-7. 

 1924. Lepidocyclina {Lcpidocyclina} supcra \^aughan. Bull. Geol. Soc. Amcr., 



vol. 35, P- 797, pl- 33, fig- 3- 

 1927. Lcpidocyclina (Lcpidocyclina) supcra Vaughan, Proc. U.S. Nat. Mus., 



vol. 71, art. 8, p. 4, pl. 3, fig. 3. 



In 1920 I collected at the Alazan-Moyutla crossing over Rio Buena 

 Vista, Canton of Tuxpan, State of Vera Cruz, Mexico, several speci- 

 mens of a species of Lepidocyclina (Lepidocyclina) which I cannot dis- 

 tinguish from L. stipera. The largest specimen is about 4.5 mm in 

 diameter and has the embryonic chambers of Lepidocyclina s.s. Ex- 

 ternal views, X 10, of two smaller specimens are figured on plate 29, 



