FORAMINIFERA OF THE ATLANTIC OCEAN. 29 



BATHYSIPHON CAPBRITONENSIS de Folin. 



Ralht/siphon cfipbritonensis de Folix, Act. Soc. Linn. Bordeaux, vol. 40 (ser. 4, 

 vol. 10). 188«. p. 274, pi. 5, figs, la-e.— Rhumbler, Arch. Prot.. vol. 3, 1903, 

 p. 269. fig. 115 (in text). 



Description.' — Test free, large, cylindrical, slightly tapering and 

 slightly curved, closed at one end; composed of siliceous sand and 

 sponge spicules with a slight amount of cement; exterior smooth 

 except for irregular annular rings slightly raised, wall white except 

 the exterior which is light brown; aperture formed by the open end 

 of the tube. 



Length, 48 mm.; breadth, 2 mm. 



Distribution. — De Folin obtained the species from material dredged 

 off Cape Breton, Gulf of Gascony; from off Coi*sica in 727 meters, and 

 from tlie coast of Morocco in 370 meters. 



BATHYSIPHON STRICTIIS de Folin. 



Baihysiphon slrictus de Folin, Act. Soc. Linn. Bordeaux, vol. 40 (ser. 4, vol. 

 10). 188fi. p. 285. pi. 8, ligs. lOfl-6.— Riiltjibler. Arch. Prot., vol. 3, 1903. 

 p. 271, fig. 119 (in text). 



Description. — Test free, elongate cylindrical, not tapering, slightly 

 curved, wall composed in large part of long acerose spicules with 

 moi-e or less white amorphous material, surface slightly roughened, 

 the spicules placed longitudinally or slightly oblique; when wet, the 

 test is translucent and flexible, white; aperture at the end of the tube. 



Length, 10-15 mm.; breadth. 0.2-0.4 mm. 



Distribution. — Type-specimens were described l)y do Folin from the 

 Gulf of Gascony, depth not given. 



BATHYSIPHON RUFUS de Folin. 



Hnthysiphnn ntjum de Folin, Act. Soc. Linn. Bordeaux, vol. 40, (ser. 4, vol. 

 10), 188G, p. 283, pi. fi, figs. 8a-e.— Goes, Bull. Mus. Comp. Zool.. vol. 29, 

 1898. p. 23, pi. 1, fig. 10.— Flint, Rep. U. S. Nat. Mus., 1897 (1899), p. 267, 

 pi. 7.— Rhumbler, Arch. Prot.. vol. 3, 1903. p. 270, fig. 118 (in text).— CusH- 

 MAN, Bull. 71, U. S. Nat. Mus., pt. 1. 1910, p. 32. fig. 22 (in text). 



Description. —Test free, elongate, tapering, slightly curved, exte- 

 riorly somewhat irregularly constricted, smooth and polished, wall 

 comparatively thick, composed of sponge spicules, usually fragmen- 

 tary, with a very hard siliceous cement in great preponderance; color 

 re(hlish or yellowish browji; aperture circular at the end of the test. 



Length, up to 12 mm. ; diameter of larger end, about 0.5 mm. 



Distribution. — De Folin described this species from the Gulf of 

 (iascony, and that seems to be the only record for that side of the 

 Atlantic. On the western side it has been recorded by Goes from the 

 Caribbean Sea, 1,345 fathoms, and by Flint from the Gulf of Mexico, 

 730 fathoms, and from off Bahia, Brazil, 1,019 fathoms. In the, 

 Albatross dredgings it lias occurred at Jiumerous stations, all, however, 



