TROPICAL PACIFIC FORAMINIFERA OF ALBATROSS 23 



rimba Archipelago off southeast Africa by Heron-Allen and Earland, 

 and I have had similar specimens from the Atlantic off the Tortugas, 

 which show the oblique costae. 



Our material in the present collections shows that the species is 

 well distributed about the South Pacific Islands, occurring at Mo- 

 kaujar Anchorage, Fiji Islands; off Levuka, Fiji, in 12 fathoms; 

 Vavau Anchorage, Tonga Islands; both in the lagoon and off the 

 ished; aperture rounded or elliptical, with a distinct tooth, some- 

 times bifid at end. Length, 0.6 mm.; breadth, 0.35 mm.; thickness, 

 0.25 mm. 



QUINQUELOCULINA cf. GRACILIS d'Orbigny 



Plate 5, Figure 12 



Our figure shows a very elongate specimen, which has a tapering 

 neck with a very distinct phialine lip and circular aperture. Such 

 forms occur at Rangiroa and are somewhat like d'Orbigny's species, 

 although they seem to be distinct. There are slight traces of longi- 

 tudinal markings, and the wall is polished. Not enough specimens 

 were obtained to be sure of the complete characters. 



QUINQUELOCULINA GUALTIERIANA d'Orbi&ny 



Plate 6, Figures 1 a~c 



QninquelocuUna ffualtieriana d'Orbigny, in De la Sagra, Hist. Fis. Pol. Nat. 

 Cuba, " Foraininiferes," p. 186, pi. 11, figs. 1-3, 1839. 



Test slightly longer than broad, with the periphery sharply angled 

 and the test tending to become more compressed as the later cham- 

 bers are added ; chambers distinct, slightly inflated, broadest toward 

 the basal end, which projects somewhat beyond the general outline 

 of the test; sutures very distinct, depressed; wall smooth and pol- 

 ished ; aperture rounded or elliptical, with a distinct tooth, sometimes 

 bifid at end. Length, 0.6 mm. ; breadth, 0.35 mm. ; thickness, 0.25 mm. 



This species, described by d'Orbigny from the West Indian region, 

 is present in very typical form in our South Pacific material. In a 

 large series there are a few specimens that seem to show that this 

 species is tending toward Afassilina, as occasionally specimens are 

 found in which the last-formed chambers are in a single plane. The 

 whole test is much compressed, as shown in the original figures, and 

 the step to Massilina would not be a very great one. 



Our specimens are from off the Fiji Islands in 12 fathoms, Levuka; 

 3 fathoms, Viva Anchorage; in 7 fathoms off Rotonga; and most 

 abundant at Vavau Anchorage, Tonga Islands. 



