TROPICAL PACIFIC FORAMINIFERA OF ALBATROSS 31 



Spiroloculina asperula H. B. Brady (not Karrer), Rep. Voy. Challenger, 



Zoology, vol. 9, p. 152, pi. 8, figs. 13, 14 (11?), 1884.— Cubhman, Proc. 



U. S. JSat. Mus., vol. 59, p. 72, 1921. 

 Massilina asperula Cushman, U. S. Nat. Mus. Bull. 100, vol. 4, p. 447, 1921. 

 Quinqueloculina variabilis d'Orbigny, Ann. Sci. Nat., vol. 7, p. 301, No. 15, 



1826. — Fobnasini, Mem. Accad. Sci. Istit. Bologna, ser. 6\ vol. 2, p. 65, 



pi. 3, figs. 6, 7, 1905. 



Test much compressed, nearly circular; early chambers quinque- 

 loculine, later ones in a single plane, periphery rounded, chambers 

 distinct; wall of sand grains with a porcelaneous lining to the cham- 

 bers; aperture very slightly exserted. Length, 1 mm.; breadth, 0.9 

 mm. ; thickness, 0.25 mm. 



This species, except for a very few records in the Tortugas region 

 off Florida, is known only from the Indo-Pacific, but it is apparently 

 widely distributed in that region. The only material we have in the 

 present collection that can be referred to it is from off Levuka, Fiji 

 Islands, 12 fathoms. 



It may be noted here that the Quinqueloculina variabilis of 

 d'Orbigny's 1826 paper, which came from Rawack, is probably the 

 same as Millett's species. As the name Quinqueloculina variabilis 

 d'Orbigny remained a nomen nudum until the publication of Forna- 

 sini in 1905, d'Orbigny's name can not be used for this species. 



MASSILINA PLANATA. new species 



Plate 8, Figures 8 a, 6 



Test comparatively large, very much compressed, periphery 

 subacute, both ends of the final chamber projecting beyond the body 

 of the test; chambers distinct, much compressed, early ones entirely 

 quinqueloculine, later ones in a single plane ; sutures fairly distinct, 

 but very slightly depressed ; wall matte, smooth except for very fine 

 elongate pits arranged generally in the long axis of the chamber; 

 aperture elliptical, with a slight lip and an elongate simple tooth, 

 slightly bifid at the tip. Length of holotype, 2 mm. ; breadth, 1 mm. ; 

 thickness, 0.2 mm. 



Holotype. — Cushman Coll. No. 14629, from Guam Anchorage, 

 Ladrone Islands, 21 fathoms. 



This is a large striking species that in our material occurred at 

 the type locality only. It suggests rather strongly the specimens re- 

 ferred by Heron-Allen and Earland in their Kerimba Archipelago 

 paper (pi. 41, figs. 1-5) * to Spiroloculina planissima (Lamarck). 

 The early quinqueloculine chambers show that their species belongs 

 to the genus Massilina and not to Spiroloculina, and its general char- 

 acter suggests that our species is to be found widely distributed in the 

 Indo-Pacific region. 



* The Foraminifera of the Kerimba Archipelago, Trans. Zool. Soc. London, vol. 20, pt. 2, 

 pp. 543-794, pis. 40-53, 1915. 



