32 SMITHSOXIAN MISCELLANEOUS COLLECTIONS VOL. 89 



and attaining a maximum thickness of about 70 jx at their outer ends. 

 about 45 II being more common. 



The hardness of the matrix made it impractical to separate the 

 specimens from the matrix. Although the specimens appear to 

 belong to a single species, better material may show the arched and 

 unarched forms to constitute two distinct species. 



Subgenus EULEPIDINA H. Douville 

 LEPIDOCYCLINA (EULEPIDINA) FAVOSA Cushman 



Plate 5, fig. 11; plate 6, fig. 2 



Lepidocyclina favosa Cushman (14, p. 66, pi. 3, figs, i, 2b; pi. 15. fig. 4. 15, 



p. 66, pi. 15, fig. 5(B)). 

 Lepidocyclhta (Eulepidim) favosa Vaughan (47, p. 799, pi. 34, fig. 8). 

 Lepidocyclina sp. Gorter and Van der Vlerk (25. p. 103). 



Specimens of L. (Eulepidiua) favosa were found in limestone 

 from localities 498 and 967. 



The indicated geologic horizon is middle Oligocene. Lepidocyclina 

 (Eidepidina) favosa was described by Cushman from the Antigua 

 formation, middle Oligocene. The type locality is U.S.G.S. station 

 6881, Antigua, Leeward Islands, bluffs on north side of Willoughby 

 Bay. 



Subfamily MIOGYPSININAE 



Genus MIOGYPSINA Sacco 



MIOGYPSINA BRAMLETTEI Gravell, n. sp. 



Plate 6, figs. 5-10 



Both megalospheric and microspheric forms of this species were 

 found. The microspheric form (pi. 6, fig. 5) is flat disk-shaped: 

 diameter as much as 4 mm ; thickness about 0.75 mm ; entirely covered 

 by glassy pustules from 50 to 80 ix in diameter, separated by a distance 

 of about twice their diameter. The surface of the test is marked by 

 a mesh work formed by the lateral chamber walls. 



Test of the megalospheric form is smaller and wedge-shaped (pi. 

 6, figs. 8, 10). The dimensions of one specimen are 2.6 mm long, 

 2.4 mm wide, and about 0.4 mm thick in the thickest portion, which 

 is near the apex of the test. The thickness decreases gradually toward 

 the periphery, which is rounded. The surface is covered with pustules 

 as in the microspheric form, though they are somewhat smaller, hav- 

 ing a diameter of about 39 to 70 ju,, being largest over the thickest 

 portion of the test. 



