ART. 14 FOBAMINIPERA FROM TRINIDAD — CUSHMAN AND JARVIS 51 



This is one of the common species of the Upper Cretaceous of 

 Mexico, Trinidad, and the Gulf Coastal Plain of the United States. 



GLOBOROTALIA VELASCOENSIS (Cushman) 



Plate 15, Figures 8 a-c 



PulvinuUna velascoensis Cushman, Contr. Cushman Lab. Forani. Res., vol. 1. 



pt. 1, p. 19, pi. 3, figs. 5 c-c, 1925. 

 Glotorotalia velascoensis Cushman, Jourc. Pal., vol. 1, pt. 2, p. 169, pi. 27, figs. 



7-9, 1927.— White, Journ. Pal., vol. 2, p. 281, pi. 38, figs. 2 a-o, 1928. 



This is a somewhat variable species with a fairly long range in the 

 Velasco shale of Mexico. There is a considerable variation in the de- 

 gree of the projection about the umbilical region of the ventral side 

 and the convexity of the dorsal surface and the amount of projec- 

 tion of the periphery. The figured specimen is from the Cretaceous 

 of Lizard Springs. 



Family ANOMALINIDAE 



Subfamily Anomalininae 



Genus ANOMALINA d'Orbigny, 1826 



ANOMALINA AMMONOmES (Rcnss) 



Plate 16, Figxjres 1 a-c 



Rosalina amnionoides Reuss, Geogn. Skizze Bohmen, vol. 2, pt. 1, p. 214, 1844 ; 

 Verstein. Bohm. Kreide, pt. 1, p. 36, pi. 8, fig. 53, pi. 13, fig. 66, 1845-46; 

 Haidinger's Naturw. Abh., vol. 4, pt. 1, p. 36, pi. 3, fig. 2, 1851. 



The early references to this species are given above. Originally 

 described from the Cretaceous of Europe, it has been used by many 

 authors to include a wide variety of forms from Cretaceous to Recent, 

 many of which have little in common with the types. The accom- 

 panying figures illustrate a Trinidad species, which seems very close 

 to Reuss's species and to which we are applying his name. 



ANOMALINA POLYRRAPHES (Reuss) 



PLATE 16, Figures 2 a-c 



Rotalina polyrraphes Reuss, Verstein. Bobm. Kreide, pt. 1, p. 35, pi. 12, fig. 18, 



1845-46 ; Haidinger's Naturw. Abb., vol. 4, pt. 1, p. 35, pi. 3, fig. 1, 1851. 

 Cibicides risseri White, Journ. Pal., vol. 2, p. 298, pi. 40, figs. 10 a-c, 1928. 



The figures represent a species from Trinidad that also occurs in 

 the Velasco shale of Mexico and in the Gulf Coastal Plain region of 

 the United States. It seems to be identical with the species described 

 by Reuss from the Cretaceous of Europe. There is a slight tendency 

 toward becoming evolute, but this is apparently never carried to the 

 point where the species can be placed in the genus Planulina. Our 



