FOEAMINTFERA OF NORTH PACIFIC OCEAN. 35 



LAGENA QUADRATA (Williamson). 

 Plate 14, fig. 9. 



Entosolenia marginata, var. quadrata Williamson, Rec. Foram. Great Britain, 

 1858, p. 11, pi. 1, figs. 27, 28. 



Lagena lucida, var. quadrata Reuss, Sitz. Akad. Wiss. Wien, vol. 46, pt. 1, 1862 

 (1863), p. 324, pi. 2, fig. 26. 



Lagena quadrata H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 475, 

 pi. 59, figs. 3, 16. — Egger, Abh. kon. bay. Akad. Wiss. Munchen, CI. n, 

 vol. 18, 1893, p. 331, pi. 10, figs. 78, 79.— Millett, Journ. Roy. Micr. Soc, 

 1901, p. 496, pi. 8, fig. 18. — Sidebottom, Mem. and Proc. Manchester Lit. 

 and Philos. Soc, vol. 50, No. 5, 1906, p. 8, pi. 1, figs. 21, 22; pi. 2, figs. 1-3.— 

 Bagg, Proc. U. S. Nat. Mus., vol. 34, 1908, p. 142. — Sidebottom, Mem. and 

 Proc. Manchester Lit. and Philos. Soc, vol. 54, No. 16, 1910, p. 18, pi. 2, 

 fig. 8[?];Journ. QuekettMicr. Club, vol. 11, 1912, p. 405, pi. 17, figs. 26-28 [?]. 



Description. — Test compressed, somewhat quadrate in outline, 

 usually somewhat keeled, aperture somewhat elongate, wall smooth. 



Length 0.5 mm. 



Distribution. — Bagg records this species from Albatross stations 

 H4440 in 1,259 fathoms and H4694 in 865 fathoms off the Hawaiian 

 Islands. I have had the typical form only from Nero station 1208 

 in 665 fathoms between Guam and Yokohama. 



LAGENA QUADRATA (Williamson), var. RIZZ.S (Seguenza). 

 Plate 19, fig. 4. 



Fissurina rizzse, Seguenza, Foram. monotal. Mioc Messina, 1862, p. 72, pi. 2, 



fig. 50. 

 Lagena quadrata H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 



p. 475, pi. 60, fig. 5. 



Description. — Testsubquadrate, compressed, central portion smooth, 

 each side with a peripheral carina just back from the edge of the 

 test, neck short, aperture with a broad phialine lip. 



Length 0.5 mm. 



Distribution. — This variety occurred at two Nero stations 1464 in 

 891 fathoms near Guam and 1310in518 fathoms between Guam and 

 Japan. 



This is close to the form figured by Brady in the Challenger report 

 and seems near enough to the above form described by Seguenza to 

 warrant the use of his name for it. 



LAGENA QUADRICOSTULATA Reuss. 



Plate 14, fig. 1. 



Lagena quadricostulata Reuss, Sitz. Akad. Wiss. Wien, vol. 62, 1870, p. 469. — 

 Schlicht, Foram. Pietzpuhl, 1870, pi. 4, figs. 25-30. — H. B. Brady, Rep. 

 Voy. Challenger, Zoology, vol. 9, 1884, p. 486, pi. 59, figs. 7(?), 15. 



Description. — "Test pyriform and more or less compressed, the 

 margin obtuse or rounded, the base frequently mucronate, and the 

 aperture entosolenian; the surface bears four arched costse, two on 

 each face of the test, near the lateral margins and parallel to them. 



