FOKAMTNTPEEA OF XoRTll PACIFIC OCEAN. 



53 



In general the genus Yerneuilina may be used to include all the 

 definitely triserial species which have a slit-like aperture at the base 

 of the inner margin of the chamber. This is apparently the primitive 

 genus from which have developed such genera as Gaudryina, and 

 in its relations to Textularia, Yerneuilina may betaken as the simplest 

 member of the subfamily Verneuilininse. It includes a number of 

 well characterized species, some of them 

 rather common and of wide distribution. 



VERNEUILINA POLYSTROPHA (Reuss). 



Bulimina polystropha Reuss, Verst. Bohm. 



Kreid., pt. 2, 1845, p, 109, pi. 24, fig. 53. 

 Verneuilina polystropha Parkek and Jones, 



Introd. Foram., 1862, p, 311.— H. B. 



Brady, Ann. Mag. Nat. Hist., ser. 5, vol. 



1, 1878, p. 436, pi. 20, figs 9a-c. 



Description. — Test elongate, conical, 

 triserial, the apical end bluntly rounded, 

 the chambers somewhat inflated; wall 

 coarsely arenaceous, the surface rough; 

 aperture at the base of the inner margin 

 of the chamber, in a depression formed 

 at the junction of the three chambers, 

 rounded or oval; vertical columns of 

 chambers usually spirally twist ed : color 

 reddish brown. 



Length 0.50-1.0 mm. 



Distribution. — This shallow water spe- 

 cies has heretofore not been recorded 

 from the North Pacific. Specimens 

 from two Albatross stations, H2681, in 

 486 fathoms, and H2772, in 343 fath- 

 oms, off the western coast of the United 

 States, seem referable to it as figured 

 by Brady. Whether this is really the 

 species described by Reuss from the 

 cretaceous is very doubtful, but for the FlG - 85 - 

 present it is so considered. view. 



-Yerneuilina polystropha. 

 i, apertural view; h, front 



VERNEUILINA PROPINQUA H. B. Brady. 



Verneuilina pro pinquaH. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 

 ]». 387, pi. 47, figs. 8-12 [not 13, 14].— Goes, Kongl. Svensk. Vet. Akad. Handl., 

 vol. 25, No. 9, 1894, p. 33, pi. 7, figs. 264-266.— Flint, Rep. U. S. Nat. Mus., 

 1897 (1899), p. 285, pi. 31, fig. 2. 



Description. — Test free, pyramidal, triserial, the apical end bluntly 

 rounded; chambers well inflated but closely set; wall coarsely arena- 



