perhaps allied to Haliphysema. 281 
he has rejected it from among the Foraminifera, on the 
description of which he was engaged. 
Genus MARSIPELLA, n. g. 
(udpouros, a purse.) 
Test elongated, fusiform, centrally cylindrical, and drawn 
out to gradually attenuated extremities, open at both ends, 
monothalamous; anterior extremity much produced into a 
narrow contracted mouth-opening. Hixtraneous matter of 
body-wall consisting for the most part of sand-grains, but atthe 
oral extremity composed almost solely of fragments of sponge- 
spicula longitudinally arranged. 
Marsipella elongata, n.sp. (Pl. XVI. fig. 7.) 
ae ami ——, Carpenter, The Microscope, p. 5383, woodcut, 
x Poel © 
Test greatly elongated, the diameter equal to one seventh 
to one twelfth of length, gradually drawn out to the extremi- 
ties, and nearly equally so orally and aborally. Oral extre- 
mity in the form of an elongated narrow mouth-opening. 
Test built up of coarse sand-grains roughly put together, 
interspersed here and there with a sponge-spicule. ‘Tubular 
mouth-opening having its wall entirely formed by a faggot of 
acerate sponge-spicula longitudinally disposed and cemented 
together. Length 4—5 millims. 
Hab. ‘ Porcupine’ Expedition, 1869, No. 87, lat. 59° 35! 
N., long. 9° 11! W., 767 fathoms. 
Dr. Carpenter has referred the foregoing to the genus Pro- 
teonina of Williamson ; but that genus appears to have been 
founded upon imperfect specimens of Lztuola nautiloidea, 
Lamk., and its connexion with the present species cannot be 
maintained. © 
I have introduced the descriptions of the genera Techni- 
tella and Marsitpella—not that I am at all satisfied that their 
organization will ultimately prove such as to cause them to be 
left in juxtaposition with Haliphysema, but because they 
appear to me to be genera incerte sedis, to which it appears 
desirable to call attention in connexion with Haliphysema. 
From this genus it will be obvious that they are at once to be 
distinguished by their free and unattached character; but there 
is much in the form of their body-cavity, as well as in the 
structure of their masonic walls and the peculiar way in 
which the incorporation of the sponge-spicules takes place, 
which suggests possible relationship. The snowy whiteness 
of the test of Technitella is, as far as I am aware, without 
Ann. & Mag. N. Hist. Ser. 5. Vol. i. 19 
