.4RT. 14 FORAMINIFEFvA FEOM TRINIDAD CUSHMAN AND JAEVIS 49 



the Cretaceous of Germany by Franke and is apparently the same as 

 the species recorded by White from the Velasco shale of Mexico. 

 The figured specimens from the Upper Cretaceous of Trinidad show 

 •well the general characters of the species. 



Family CHILOSTOMELLIDAE 



Subfamily Allomorphininae 



Genus ALLOMORPHINA Reuss, 1850 



ALLOMORPHINA TROCHOmES (Reuss) 



Plate 15, Figures 3 a-c 



Olobigerina trochoides Reuss, Verstein. Bohm. Kreide, pt. 1, p. 36, pi. 12, 

 fig. 22, 1845-46; Haidinger's Naturv/. Abh., vol. 4, pt. 1, p. 37, pi. 3, 

 tig. 5, 1851. 



YalviiUna trochoides Fkanke, Abh. Preiiss. Geol. Landes., vol. Ill, p. 162, 

 pi. 15, figs. 2 a-c, 1928. 



Test triserial, consisting of a conical early portion and an inflated 

 later portion made up of the last three chambers in the adult; cham- 

 bers of the early portion rather indistinct, last three greatly inflated 

 and subglobular; sutures of the last portion distinct and depressed, 

 early ones obscure; wall smooth; aperture an elongate slit at the base 

 of the last-formed chamber. Length, 0.35; diameter, 0.3-0.35 mm. 



This is a very peculiar little sj^ecies, but it has a very wide dis- 

 tribution in the Upper Cretaceous of Europe and America. Reuss 

 placed it as a Glodigerhm, but it evidently does not belong in that 

 genus. Franke has placed it in ValvuUtm, but it seems to have a 

 calcareous, perforate test. The triserial character of the test and 

 the type of the aperture seem to show that this species should be 

 placed as a primitive species of Allomoi'phina with a very high 

 spire. 



Subfamily Allomorphinellinae 



Genus PULLENIA Parker and Jones, 1862 



PULLENIA QUINQUELOBA (Reuss) 



Plate 15, Figures 4 a, b 



Nonionlna guinqueloba Reuss, Zeitschr. deutsch. geol. Ges., vol. 3, p. 71, pi. 5, 



fig. 31, 1851. 

 Pullcnia quinqucloba H. B. Brady, Rep. Voy. CJMllenger, Zoology, vol. 9, p. 617, 



pi. 84, figs. 14, 15, 1884. — Cushman and Church, Proc. California Acad, 



Sci., ser. 4, vol. 18, p. 517, pi. 41, figs. 10, 11, 1929. 



Test planispiral in the adult, completely involute, compressed, pe- 

 riphery rounded; chambers typically five in the last-formed coil, 

 increasing gradually in size as added, only slightly inflated; sutures 



'to to' 



70827—32^—4 



