.REPORT ON THE FORAMINIFERA. 
237 
In general terms the test of Pelosina cylindrica differs from that of Pelosina variabilis 
in its nearly uniform diameter (the oral end being if anything the wider of the two) and 
its rounded extremities. In contour it is generally somewhat bent, and the aperture is 
a simple orifice, sometimes partially blocked with mud. The walls, as a rule, present the 
same general structure as those of the other species ; the exterior is rough, and the 
interior surface smoothly finished. 
One or two specimens have been met with consisting of two chambers of small size, 
joined end to end (fig. 3) ; but whether they represent a segmented variety, or two 
individuals in an early or immature stage, or simply an accidental or abnormal modifica- 
tion of the ordinary form, there is nothing to indicate. 
If we may judge from the six Challenger Stations at which its occurrence is recorded, 
Pelosina cylindrica is exclusively a deep-water species, the distribution being as follows : — 
North Atlantic, off Gomera, Canary Islands, 620 fathoms, and off Sierra Leone, 1750 
fathoms; Antarctic Ice-barrier, 1675 fathoms; east coast of New Zealand, 1100 
fathoms ; and two points far north in the North Pacific, 2900 fathoms and 2050 
fathoms respectively. From the second and third of these localities the specimens differ 
somewhat from the normal form, the chitinous envelope being less thickly coated with 
mud. 
Dendrophrya, Str. Wright. 
Dendrophrya, Wright [1861], Putsch li, Brady. 
Test adherent ; consisting of a sessile chamber with erect or spreading arms. 
Arms tubular, irregular, often branching ; with apertures at the distal ends. Walls 
chitinous, coated with mud. 
The genus Dendrophrya was established by the late Dr. T. Strethill Wright for 
certain “ Rhizopodous animals, found plentifully on Sertularias, Flustras, Fuci, and 
stones, in low- water pools.” It is much to be regretted that the discoverer did not more 
clearly define the characters of the genus, and that he only figured one of the two species 
which he described ; and still more that the type specimens were not preserved, or at 
any rate are not now to be found amongst his collections. 
That the genus is nearly related to Astrorhiza is evident, both from the nature of the 
investment and the forms which the test assumes ; and it is satisfactory to be able to state 
that this was Dr. Wright’s own view of its affinity, as ascertained under the following 
circumstances. During some dredging operations on the coast of Northumberland and 
Durham, in the years 1862-1864, Astrorhiza limicola was more than once obtained. 
This little animal was then unknown to English naturalists, though it had been described 
some years before by Dr. Sandahl, and specimens were sent to Dr. Wright, thinking 
(ZOOL. CHALL. EXP. PART XXII. 1883.) Y 31 
