FORAMINIFERA OF THE NORTH PACIFIC OCEAN. 79 



BILOCULINA ANOMALA Schlumberger. 



Plate 32, fig. 1. 



Biloculina anomala Schlumberger, Mem. Soc. Zool. France, vol. 4, 1891, p. 182, 

 pi. 11, figs. 84-86; pi. 12, fig. 101, text figs. 32-34. 



Description. — Test pyriform in front view, broadest near the aboral 

 end, tapering toward the apertural end, the chambers in end view 

 well rounded; the suture depressed, periphery of the test broadly 

 rounded; wall smooth, white; aperture arcuate, fairly broad, in 

 front view the dorsal edge of the aperture making an obtuse angle, 

 which in end view shows as a slight projection into the curved line 

 of the aperture; tooth elongate with curved ends. 



Length, about 1 mm. 



Distribution. — I have haa this species from but two North Pacific 

 stations, Albatross H2923 in 392 fathoms and Nero 2070 in 285 

 fathoms, both in the vicinity of the Hawaiian Islands. These speci- 

 mens had all the external characters of the species. Especially dis- 

 tinct was the angle mentioned by Schlumberger as a characteristic 

 feature of the species. Material was not in sufficient quantity, 

 however, to section. 



BILOCULINA LUCERNULA Schwager. 

 Plate 32, fig. 2. 



Biloculina lucernuia Schwager, iVovara-Exped., Geol. Theil., vol. 2, 1866, p. 202, 

 pi. 4, figs. 14a-c, 17 a, 6.— Schlumberger, Mem. Soc. Zool. France, vol. 4, 

 1891, p. 185, pi. 12, figs. 90-96, text figs. 37-41. 



Biloculina bulloides H. B. Brady (not d'Orbigny) Rep. Voy. Challenger, Zoology, 

 vol. 9, 1884, p. 142, pi. 2, figs. 5, 6— Bagg, Proc. U. S. Nat. Mus., vol. 34, 

 1908, p. 117. 



Biloculina tubulosa H. B. Brady (not Costa), Rep. Voy. Challenger, Zoology, vol. 

 9, 1884, p. 147, pi. 3, figs. 6, 14.— Goes, Bull. Mus. Comp. Zool., vol. 29, 1896, 

 p. 86.— Flint, Ann. Rep. U. S. Nat. Mus., 1897 (1899), p. 293, pi. 34, fig. 1. 



Description.— Test of adult in front view nearly circular, the aper- 

 tural and aboral ends projecting somewhat; in end view the chambers 

 well curved; the periphery bluntly angled, wall slightly roughened by 

 the fine layer of sand which seems to be characteristic of the species, 

 often giving it a yellowish brown appearance; aperture exserted, 

 with a short cylindrical neck, truncate at the end, in end view circular, 

 the small tooth well rounded, about half filling the opening. 



Length, up to 1.5 mm. 



Distribution. — Goes has recorded this species from Albatross D3375, 

 in 772 fathoms off the western coast of America under the name 

 B. tubulosa, and Flint from D3080 in 93 fathoms off the coast of 

 Oregon. Bagg records it as B. bulloides from four Albatross stations 

 off the Hawaiian Islands, D4000 in 104-213 fathoms, D4025 in 275- 

 368 fathoms, H4555 in 1,398 fathoms, and H4596 in 367 fathoms. 



