110 
Testaceous Bhizopods, 
[Monthly Microscopical 
Journal, Feb. 1, 1869. 
P. aurita. Shell, nearly orbicular ; anterior aperture surmounted 
by two acuminate processes which, as in the case of the neck of 
Cadium, are bent downwards from the erect position. These 
processes are perfectly plain, the line of union between them and 
the body of the shell being distinctly marked. Diameter, -o-roth of 
an inch; length of ear-like processes, about -^TT^h of an inch. 
Fig. 15. 
Hab. North Atlantic deposits, in 871 fathoms. 
P. gldbularis. (var.) Fig. 18. This form resembles the last in 
the general outline and marking of the siliceous shell ; but the 
anterior aperture is not everted. It may be only an imperfectly 
developed variety. 
P. cuspidata. n. s. (Wall.) Only a single specimen of this 
curious shell was obtained by me. It is purely siliceous and hyaline ; 
the body being oval, and surmounted at one extremity by two, and 
at the other by a single mucronate process ; surface of the shell 
grooved longitudinally and transversely situated, as in Cadium. As 
the specimen was in balsam before it was detected, no opportunity 
was afforded of tracing out its characters ^ore fully, 
Hab. North Atlantic, at 2000 fathoms. 
