TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS" 23 



that to which Sidebottom gave the name var. duplicata. The 

 variety has a smooth test with a distinct keel, and the base with a few 

 costae. There are added at the base four tubular projections, two 

 on each side, which seem to be characteristic of this variety. The 

 only localities are shown in Table 13. 



LAGENA AURICULATA H. B. Brady var. COSTATA H. B. Brady 



Plate 6, Figures 2a, b 



Lagena auriculata H. B. Brady var. costata H. B. Brady, Quart. Journ. Micr. 

 Sci., vol. 21, p. 61, 1881; Rep. Voy. Challenger, Zoology, vol. 9, p. 487, pi. 

 60, fig. 38, 1884. — Sidebottom, Journ. Quekett Micr. Club, vol. 11, p. 422, 

 pi. 20, figs. 21, 22, 1912.— CusHMAN, U. S. Nat. Mus. Bull. 71, pt. 3, p. 32, 

 pi. 14, fig. 2, 1913. — Heron-Allen and Earland, British Antarctic Exped., 

 Zoology, vol. 6, p. 235, 1922. 



Variety differing from the typical in having the body of the test 

 costate as well as carinate. Length, 0.45 mm; breadth, 0.18 mm; 

 thickness, 0.12 mm. 



Besides the figured specimen, which is from Albatross Station 

 H3912, latitude 18° 56' S., longitude 139° 5' W., in 2,343 fathoms, 

 there is only one other specimen of this species, and that is from 

 Albatross Station H3879, latitude 16° 3' S., longitude 143° 32' 30" 

 W., in 1,084 fathoms. 



LAGENA FIMBRIATA H. B. Brady var. OCCLUSA Sidebottom 



Plate 5, Figures 7a, b 



Lagena fimbriata H. B. Brady var. occlusa Sidebottom, Journ. Quekett Micr. 

 Club, vol. 11, p. 423, pi. 20, figs. 27, 28, 1912; vol. 12, p. 202, 1913.— Heron- 

 Allen and Earland, British Antarctic Exped., Zoology, vol. 6, p. 166, 1922. 



This is a peculiar form with the base having distinct winglike pro- 

 jections, which are more or less opaque and wrinkled as described by 

 Sidebottom. The space beneath these winglike projections both in 

 his specimens and in ours is filled, but whether this is a natural con- 

 dition or whether the material is from some outside source is very 

 difficult to determine with the small size and delicateness of the speci- 

 mens. Sidebottom's types were from the South Pacific, and those 

 recorded by Heron-Allen and Earland from the Antarctic. Our 

 only specimens are from Albatross Station H3838, latitude 16° 57' 

 S., longitude 148° 58' W., in 2,224 fathoms. 



lagena SIGMOIDELLA, new species 



Plate 5, Figures 10, 11 



Test in end view sigmoid, in front view oval or ovate, broadest at 

 the base and somewhat tapering toward the apertural end, with a dis- 

 tinct peripheral keel, thin and translucent, the ends at each side 



