5 
There are a very few specimens from station 3 which may be referred to this 
species with some doubt. They are composed of fine white amorphous material 
for the most part, of several chambers irregularly arranged, but with definite 
apertures. In one of the specimens these are irregularly grouped near where 
the chambers intersect, in another they are remote from one another. In the 
usual form of the species the apertures are not apparent, according to the de- 
scription, but the figures in the Challenger Report show rather definite areas 
which appear to be apertures closed by amorphous material. Most of the other 
records are from deep water. 
GENUS PELOsINA H. B. BRADY, 1879. 
Pelosina variabilis H. B. Brady. 
4 
Pelosina variabilis H. B. Brady, Quart. Journ. Micr. Sci., vol. 19, 1879, p. 30, 
pl. 3, figs. 1-3; Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 235, pl. 26, 
figs. 7-9—Flint, Rep. U.S. Nat. Mus., 1897 (1899), p. 266, pl. 4, fig. 1.— 
Rhumbler, Arch. Prot., vol. 3, 1908, p. 239, fig. 74 (in text) Chapman, 
Trans. New Zealand Inst., vol. 38, 1905, p. 83.—Cushman, Bull. 71, U.S. 
Nat. Mus., pt. 1, 1910, p. 47, fig. 52 (in text).—Heron-Allen and Earland, 
Trans. Linn. Soc. London, vol. 11, pt. 18, 1916, p. 218.—Cushman, Bull. 
104, U.S. Nat. Mus., pt. 1, 1918, p. 53, pl. 22, figs. 1-4. 
At station 4 this and the two following species occur. One of the specimens 
of P. variabilis has a double aperture. The test is composed of fine-grained, 
light-coloured, amorphous material. Most of the records for the species are 
in cold or deep water. 
Pelosina cylindrica H. B. Brady. 
Pelosina cylindrica H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 
p. 236, pl. 26, figs. 1-6.—Egger, Abh. bay. Akad. Wiss. Miinchen, vol. 18, 
1893, p:. 253, pl. 4, figs. 1, 2.—Rhumbler, Arch. Prot., vol. 3, 19038, p. 239, 
fig. 72 (in text).—Chapman, Trans. New Zealand Inst., vol. 38, 1905, p. 83. 
—Cushman, Bull. 71, U.S. Nat. Mus., pt. 1, 1910, p. 46, figs. 50, 51 (in 
text).—Pearcey, Trans. Roy. Soc..Edinburgh, vol. 49, 1914, p. 1002.— 
Cushman, Bull. 104, U.S. Nat. Mus., pt. 1, 1918, p. 54, pl. 22, fig. 5. 
Rhizammina indivisa Goés (part), Bull. Mus. Comp. Zodl., vol. 29, 1896, p. 20. 
Like the preceding, this species is known mostly from deep, cold waters. 
It is recorded from the Antarctic as well as from northern regions. The Hudson 
Bay specimens are tubular with thick walls of amorphous material which carry 
sand grains imbedded in the surface. 
Pelosina rotundata H. B. Brady. 
Pelosina rotundata H. B. Brady, Quart. Journ. Micr. Sci., vol. 19, 1879, p. 31, 
pl. 3, figs. 4,5; Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 236, pl. 25, 
figs. 18-20.—Egger, Abh. bay. Akad. Wiss. Miinchen, vol. 18, 1893, p. 254, 
pl. 11, fig. 60.—Rhumbler, Arch. Prot., vol. 3, 1903, p. 239, fig. 71 (in text). - 
137 
