260 



BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



chambers more distinct and somewhat inflated, smooth; apertm*e 

 radiate, on the dorsal side of the chamber. 



Length up to 4 mm. 



Distribution. — The only station from which I have had this species 

 is Albatross D5612, in 750 fathoms (1,370 meters), just south of the 

 Equator, in the Gulf of Tomini, Celebes. 



The character of the last-formed chamber in the specimen figured 

 here is rather unusual, but the earlier chambers are typical of this 

 species. It has not been recorded from the North Pacific. 



Vaginulina margaritifera — Material examined. 



VAGINULINA BRADYI Cushman. 



Plate 42, figs. 3, 4 a, b. 

 Vaginulina brukenthaWH.. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 



p. 532, pi. 66, figs. 18, 19 (not V. brukenthali Neugeboren). 

 Vaginulina bradyi Cushman, Proc. U. S. Nat. Mus., vol. 51, 1917, p. 661. 



Description. — Test elongate, tapering toward the basal end, which 

 is armed with one or more short spines, somewhat compressed, 

 chambers numerous, distinct, early ones coiled, later ones in a linear 

 series but with the sutures oblique throughout, limbate in the central 

 portion, not keeled, in transverse view ovate; aperture at the dorsal 

 side of the chamber, radiate. 



Length up to 4 mm. 



Distnbution. — ^Type specimen (U.S.N.M. No. 9142) from Albatross 

 station D5580, in 162 fathoms (297 meters), Darvel Bay, Borneo, 

 bottom temperatures, 55.8° F. (13.2° C). It also occurred at the 

 following stations: D5313, in 150 fathoms (270 meters), China Sea, 

 vicinity of Hongkong, bottom temperature 53.6° F. (12° C); D5315, 

 in 148 fathoms (271 meters), bottom temperature 54.4° F. (12.4° C); 

 and D5318, in 340 fathoms (622 meters), both in the China Sea, 

 vicinity of F'ormosa. 



This species which was obtained by the Challenger in Torres Strait 

 and referred by Brady to the species described by Neugeboren from 

 the Miocene of Transylvania seems to be distinct from that species 

 although it resembles it in certain respects. Our recent species lacks 

 the prominent keel of B. brulcenthali, and the greater compression 

 of that species especially in the earlier portion. This new species is 

 evidently a tropical one of the Indo-Pacific region. 



