REPOET ON THE FOR AMIN IFER A. 
299 
Reophax cylindrica, n. sp. (PI. XXXII. figs. 7-9). 
Test long, straight, cylindrical, of nearly even diameter throughout or regularly 
tapering ; broadest near the oral end ; inferior extremity round, superior tapering, 
truncate, bearing a simple circular aperture. Exterior smoothly finished, without 
sutural constrictions or other superficial marks of segmentation. The longitudinal 
section showing a series of six to eight short cylindrical chambers, separated by thick, 
flat septal plates. Length, about ifth inch (3 '6 mm.). 
Except a single broken test, this species has not been found in either the Challenger 
or c£ Porcupine ” gatherings, and I am indebted to the Rev. A. M. Norman for the 
specimens represented in figs. 7 and 8. 
Reophax cylindrica may be readily identified amongst its congeners by its slender 
and regularly cylindrical contour, and the absence of external indications of its 
interior structure, except such as depend on slight differences in colour. It is of smaller 
dimensions than Reophax sabidosa, the species it otherwise most nearly resembles, and 
though the walls are of similar texture, they are thinner and more compactly built. 
The interior of the test is even more characteristic, for, whilst the successive chambers 
of the latter species are embracing and taper towards the distal ends, the septa of Reophax 
cylindrica take the form of nearly flat transverse plates, as shown in the sectional 
drawing, fig. 9. 
Mr. Norman’s specimens were obtained from one of the “ Valorous ” soundings in the 
North Atlantic, lat. 59° 10' N., long. 50° 25' W. ; depth, 1750 fathoms. The Challenger 
fragment was found at Station 144, between the Cape of Good Hope and the Kerguelen 
Islands, 1570 fathoms. 
Reophax jindens, Parker, sp. (PI. XXXII. figs. 10, 11). 
Lituola Jindens, Parker, 1870 (in Dawson’s paper) Canad. Nat., vol. v., N. S., p. 177 ; p. 180, fig. 1. 
„ „ Siddall, 1878, Proc. Chester Soc. Nat. Sci., pt. ii. p. 47. 
Reophax Jindens, Id. 1879, Catal. Erit. Rec. For., p. 4. 
Test elongate ; composed of a short line of inflated segments, dividing at one end 
into two or more branches, each consisting of a similar series of chambers of smaller size. 
General aperture simple, situated at the broad end of the test ; in immature specimens 
orifices frequently exist at the extremities of the branches also. Texture coarsely 
arenaceous; exterior rough. Length, -^th inch (1'26 mm.). 
Reophax Jindens is a somewhat anomalous species ; and, though it appears by name 
in two or three published memoirs, and has been figured by Dr. G. M. Dawson in his 
paper on Foraminifera from the Gulf and River St. Lawrence, it has not hitherto 
been described. The test consists of a line of from two to five Lituoline chambers joined 
