ABT. 14 FOEAMINIFERA FROM TEINIDAD--CUSHMAN AND JAEVIS 41 



The figured specimen may be referred to this Cretaceous species, 

 which is variable in the form of the chambers. One side is decidedly 

 flattened, giving the test the appearance of having been attached. 



Genus PSEUDOPOLYMORPHINA Cushman and Ozawa, 1928 



PSEUDOPOLYMORPHINA OZAWANA, new species 



Plate 12, Figures 9 a, h 



Description. — Test elongate, very much compressed; early cham- 

 bers somewhat thicker than the later ones, which are definitely 

 biserial; sutures raised and subnodose; wall between the sutures 

 smooth; aperture terminal, radiate. Length, 2.5; breadth, 1; 

 thickness, 0.5 mm. 



HoIotyjJe.—U.^.'^M. No. 73821 (Cushman Coll. No. 15324), from 

 Upper Cretaceous of pit at Lizard Springs, near Guayaguayare, 

 southeastern Trinidad, British West Indies. 



Beiimrhs. — This is a peculiar highly ornamented species of the 

 genus and very distinct from any other Imown Cretaceous form. It 

 is named for the late Prof. Yoshiaki Ozawa, who has contributed so 

 much to the knowledge of this family. 



Genus RAMULINA Rupert Jones, 1875 



RAMULINA sp. (?) 



Plate 12, Figubes 10, 11 



The two spinose forms figured here may be referred to the genus 

 Ramulina, but without further material it seems rather useless to 

 give this a definite specific name. 



Family NONIONIDAE 

 Genus NONION Montfort, 1808 



NONION CRETACEUM, new species 



Plate 12, Figures 12 a, & 



Description. — Test closely coiled, compressed, very slightly um- 

 bilicate, periphery subacute ; chambers distinct, eight making up the 

 adult coil, of uniform shape increasing very slightly in size as added; 

 sutures distinct, limbate, very slightly curved ; wall smooth, the cen- 

 Iral umbilical region covered with a layer of clear shell material, 

 in which are tubular spaces connecting with the umbilici, represented 

 by lighter spaces in the clear material ; aperture narrow, at the base 

 of the last- formed cliamber. Diameter, 0.65 ; thickness, 0.25 mm. 



