TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS" 15 



northwest point of Hikueru Atoll, K mile E., in 348 fathoms, and no 

 others have occurred, it is simply figured here for future reference. 

 The form has an elongate neck and a smooth exterior. 



Genus PSEUDOGLANDULINA Cushman, 1929 



PseudoglanduUna Cushman, Contr. Cushman Lab. Foram. Res., vol. 5, p. 87, 



1929. 

 Synonyms: Nodosaria (part) of authors; Glandulina (part) of authors (not 



d'Orbigny). 



Genoholotype. — Nautilus comata Batsch. 



Test similar to Nodosaria, but the chambers embracing, the last- 

 formed one maldng up a large part of the surface of the test; chambers 

 uniserial throughout; aperture radiate. Jurassic to Recent. 



As the type species of Glandulina has been shown to be biserial in 

 the early stage, particularly of the microspheric form, it becomes evi- 

 dent that it is a genus belonging in the Polymorphinidae. There are, 

 however, uniserial rectilinear forms that have the chambers embracing 

 and for which the new genus PseudoglanduUna was erected. It is 

 possible that some of the forms referred to this genus may be uniserial, 

 derived from Glandulina by acceleration and the dropping out of the 

 biserial stage. 



PSEUDOGLANDULINA PROPINQUA (Stache) 



Plate 3, Figure 12 



Lingulina propinqua Stache, Nouara-Exped., Geol. Theil, vol. 1, p, 191, pi. 22, 

 figs. 15a-e, 1864. 



Test elongate, slightly tapering, composed of few chambers, five 

 usually the maximum number; chambers of somewhat irregular shape 

 but increasing in diameter as added, strongly overlapping, slightly 

 inflated, later chambers more elongate than the earlier ones; sutures 

 distinct, slightly depressed, not limbate; wall smooth, very finely per- 

 forate; apertural end projecting, aperture itself radiate, terminal, 

 central. Length, 0.4 mm; diameter, 0.12 mm. 



The form here figured seems to agree almost exactly with Stache 's 

 figure 15e. The species seems to be rare in the Recent material 

 examined, occurring only at Albatross Station H3812, entrance to 

 Avatoru Pass, Rahiroa Atoll, 7.5 miles S., in 819 fathoms. 



Genus VAGINULINA d'Orbigny, 1826 



Vaginulina d'Orbigny, Ann. Sci. Nat., vol. 7, p. 257, 1826. 

 Synonym: Nautilus (part) Linnaeus, 1758. 



Genotype. — By designation, Nautilus legumen Linnaeus. 



Test compressed, usually with one side straight, representing the 

 periphery of the coiled forms, the other typically convex ; sutures oblique, 

 highest on the straight side of the test; aperture at or near the periph- 

 eral angle. Jurassic to Recent. 



