no. 1608. FORAMINIFERA FROM THE HAWAITAN ISLANDS—BAGG. 129 
TROCHAMMINA RINGENS Brady. 
Trochamming ringens Brady, Quart. Journ. Microsc. Sci., XIX, n. s., 1879, 
De BW Ol Wy iS 12, @ Oe 
Test nautiloid, biconvex, depressed, and composed of but few cham- 
bers, usually about one-half the number of those present in 7rocham- 
mina trusillata. It is much more rare than the latter species, is of a 
dark gray or brown color, and there is no punctation of the inner 
surface of the shell. Not before recorded beyond the Atlantic Ocean, 
and said to occur at depths of from 1,675 to 2,750 fathoms. Found 
at Station H. 4590, 978 fathoms, rare. ; 
Genus WEBBINA. 
WEBBINA CLAVATA Jones and Parker. 
Trochammina irregularis clavata JONES and PARKER, Quart. Journ. Geol. 
Soc., XVI, 1860, p. 304. 
This adherent species was later described under the genus Web- 
bma.t The latter is always adherent on its lower surface without a 
definite body wall inclosing the surface of attachment, while in 
Trochammina the tube is complete and walled on all sides. The spe- 
cles 1s of wide areal distribution and of almost unlimited bathymetric 
range. Several examples were found at Stations D. 4000, D. 4174, 
H. 4476, H. 4566, H. 4590, and H. 4696. 
Subfamily LOHYDPUSIIN 2%. 
Genus CYCLAMMINA. 
CYCLAMMINA CANCELLATA Brady. 
Cyclammina cancellata Brapy, in Norman, Proc. Roy. Soc, XXV, 1876, 
p. 214. 
The genus Cyclammina, established by Brady in 1876, meludes 
the entirely arenaceous, large, compressed, convoluted Foraminifera 
whose walls are finely cancellated. These are often so highly devel- 
oped that the inner portion of the chambers is greatly reduced. Ex- 
ternally the surface is smooth and the aperture either a series of pores 
on the septal face or an arched fissure at the inner margin of the final 
seoment. The periphery in (. cancellata is rounded. I have identi- 
fied this species in the New Jersey Miocene but am not aware of its 
further occurrence in the fossil state. In existing oceans it 1s of very 
ereat bathymetric range (75 to 2,900 fathoms) and has a wide geo- 
graphical distribution. It is present at Stations D. 4174 and H. 4508, 
at the latter with Haplophragmium scitulum, which the above some- 
what resembles. 
« Jones, Parker, and Brady, Monograph, Foram. Crag, 1866, p. 26. 
Proc. N. M. vol. xxx1v—08——9 
