FORAMINIFERA OF THE PHILIPPINE AND ADJACENT SEAS. 261 

 Vaginulina bradyi — Material examined. 



VAGINULINA LINEARIS (Montagu). 



Plate 42, figs. 5-8. 



Nautilus linearis Montagu, Test. Brit., Suppl., 1808, p. 87, pi. 30, fig. 9. 

 Dentalina legumen, var. linearis Williamson, Recent Foramaminifera of Great 



Britain, 1858, p. 22, pi. 2, figs. 46-48. 

 Vaginulina linearis Parker and Jones, Philos. Trans., vol. 155, 1865, p. 343, pi, 

 13, figs. 12, 13.— H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 

 532, pi. 67, figs. 10-12.— Flint, Rep. U. S. Nat. Mus., 1897 (1899), p. 314, pi. 61, 

 fig. 1. 

 Vescnption. — Test elongate, hardly tapering, early chambers coUed, 

 later ones becoming iiniserial and finally Nodosarian; sutures of early 

 portion rather indistinct, close set, not depressed, of later portion 

 becoming oblique, then du*ectly transverse and toward the apertural 

 end becoming depressed and the chambers inflated; test except the 

 last-formed chambers ornamented with a series of raised costae 

 usually subspiral; last-formed chamber smooth and unornamented; 

 aperture radiate somewhat extended; becoming central and terminal. 

 Length up to 5 mm. or more. 



Distribution. — This species was found at the following stations; 

 Albatross D5133, in 38 fathoms (70 meters), Sulu Sea off western 

 Mindanao; D5162, in 230 fathoms (420 meters), off Tawi Tawi group, 

 bottom temperature 52.9° F. (11.6° C); D5172, in 318 fathoms (582 

 meters), off Jolo; D5268 in 170 fathoms (311 meters), off eastern 

 Mindoro; D5569, in 303 fathoms (554 meters), north of Tawi Tawi, 

 bottom temperature 52.3° F. (11.2° C); and D55S5, in 476 fathoms 

 (871 meters), off Sibuko Ba}^, Borneo, bottom temperature 41.1° F. 

 (5° C). 



In certain respects the Philippine material differs from that of the 

 Atlantic. The earlier portion is much more coiled and compressed 

 and the latter portion in full grown specimens more Nodosarian. 

 Recent Atlantic material which I have seems different and the Indo- 

 Pacific material may be a distinct species. Both microspheric and 

 megalospheric specimens occur in the material examined in about 

 equal numbers. 



