FORAMINIFERA OF THE ATLANTIC OCEAN. 



73 



portion biserial, the chambers inflated and distinct, the later cham- 

 bers with a forward extension, at the end of which is the aperture; 

 wall rather coarsely arenaceous and slightly rough; aperture nearly 

 circular, at the end of the elongate chamber; color reddish-brown. 



Length up to 1 mm. 



Distribution. — From the available records this species is widely 

 distributed in usually comparatively deep water. Brady's records 

 in the Challenger report include the North and South Atlantic and 

 the North and South Pacific. Several distinct forms have been in- 

 cluded under the name G. siphonella Reuss as is shown by a reference 

 to the published figures of Brady, Millett, vSidebottom, and others. 

 The only record given by Flint is Albatross station D2568 in 1,781 

 fathoms (3,257 meters), oflF the northeastern coast of the United 

 States. The only one of Brady's Challenger records which comes 

 into our region is station 24, off the Lesser Antilles, in 390 fathoms 

 (713 meters), and one off the coast of Brazil in 675 fathoms (1,234 

 meters). I have had specimens from 13 stations, ranging from lati- 

 tude 40° off our northeastern coast southward to the coast of Geor- 

 gia, and 4 stations in the northern part of the Gulf of Mexico, one 

 off Yucatan, one off the Windward Islands, and one off the coast of 

 Brazil. These specimens are all very constant in their characters 

 and resemble very much plate 46, figure 17, as given by Brady, and 

 the same as those figured by Flint. They are made up of rather 

 coarse arenaceous material and are slightly roughened on the surface. 



Gaudryina apicularis — material examined. 



53568—22- 



