FOBAMINIFERA OF THE ATLANTIC OCEAN. 



91 



Our species shows that the early chambers are globular and close 

 set, as are those figured by Brady, the later ones becoming more 

 elongate and remote. The neck is slender, long, and tapering, and 

 ornamented with peculiar platelike ornamentation. The aperture 

 itself is surrounded by projecting teeth, usually four in number. In 

 certain of its characters it resembles Nodosaria substriatula Cush- 

 man, which occurs widely spread in the Indo-Pacific. There are 

 evidently other species, both recent and fossil, which have a similar 

 ornamentation of the surface but which are not identical with our 

 western Atlantic species. 



Nodosaria intercellularis — material examined. 



NODOSARIA ANTILLEA, new species. 



Plate 14, fig. 9. 



Sagrina virgula H. B. Brady (part), Rep. Voy. Challenger, Zoology, vol. 9, 

 1884, p. 583, pi. 76, figs. 9, 10 [?]. 



Description. — Test elongate, tapering, straight or slightly curved, 

 composed of a few chambers in a linear series, the later ones somewhat 

 remote, surface of the upper part of the chamber smooth, basal por- 

 tion with a series of spines or broken costae, the chamber angled near 

 the base, sutures distinct, apertural end contracted into a short 

 cylindrical neck with a broad phialine lip. 



Length up to 1 mm. 



Distribution. — Type-specimen (U.S.N.M. Cat. No. 18773) from 

 Albatross station D2C)14, in 168 fathoms (307 meters), off the coast 

 of Carolina. Brady records this species from off Pernambuco, Brazil, 

 in 675 fathoms (1,234 meters). His other records are from the south 

 Pacific. 



There are two species involved in Brady's plate of Sagrina virgula; 

 one of these, represented by figures 4-7, is a true Siphogenerina^ that 

 occurs at numerous stations in comparatively shallow water in the 

 Indo-Pacific region. The other is apparently a Nodosaria., and while 

 various forms occur in deeper water in various parts of the oceans, 

 it is very distinct from the other form figured. The very flaring lip 

 is often prominent at the base of the new-formed chamber. The 

 chamber is usuallv somewhat angled below the median line and this 



