14 BULLETIN 161, UNITED STATES NATIONAL MUSEUM 



Test elongate, somewhat tapering, the initial end with a slight spine; 

 chambers few, distinct, slightly overlapping, increasing in length as 

 added, circular in transverse section; sutures distinct, slightly de- 

 pressed, not limbate; wall ornamented by numerous longitudinal 

 costae, which are continuous over adjacent chambers, the outer por- 

 tion of the last-formed chamber in the adult often smooth; aperture 

 radiate, at the end of a distinct cylindrical neck, occasionally with cir- 

 cular raised costae. Length, up to 1.15 mm; diameter, 0.3 mm. 



This species described originally by Schwager from the Pliocene of 

 Car Nicobar occurs at a number of stations in the Albatross material. 

 There is some variation in the number of the costae as seen in the 

 figured specimens. The occurrence of the species in our material is 

 shown in Table 7. 



NODOSARIA PRAVA, new species 



Plate 4, Figures 1-4 



Test elongate, somewhat tapering, early chambers usually some- 

 what overlapping in the microspheric form, and either 2 or 3 in num- 

 ber, increasing slightly in size as added, followed by two or more 

 chambers obliquely placed, the obliquity becoming more pronounced 

 as chambers are added, in the megalospheric form the early stages 

 often entirely wanting, and the entire test consisting of somewhat 

 obliquely placed, inflated chambers; sutures distinct, those of the 

 early portion in the microspheric form only slightly depressed, later 

 ones very much depressed, and the connection between the chambers 

 greatly constricted; wall ornamented by longitudinal costae, in the 

 early portion continuous over adjacent chambers, on the inflated 

 chambers the costae usually independent on each chamber; aperture 

 at the end of a cylindrical or tapering neck with definite teeth about 

 the margin, the neck itself usually oblique to the axis of the test, 

 and often ornamented by longitudinal costae. Maximum length, 2 

 mm; diameter, 0.5 mm. 



Holotype.—U.S.l^M. No. 22334, from Albatross Station H3858, 

 Ngaruae Pass, Fakarava Atoll, 28° S., 1 mile E., in 599 fathoms. 



The megalospheric form of the species occurs alone at Albatross 

 Stations H3808, entrance to Avatoru Pass, Rahu"oa Atoll, 1.5 miles 

 S., in 604 fathoms, and H3857, Center Tikei Island, K mile E., in 360 

 fathoms. This is a very unusual form, and the peculiar oblique 

 chambers seem to be a definite character, and they are not in any 

 way abnormal, as shown by the number of specimens of this character. 



NODOSARIA sp. (?) 



Plate 3, Figure 11 



The figured specimen shows what may be a very young specimen 

 or an adult. As it is a single specimen from Albatross Station H3898, 



