NO. 21 FOURTEEN NEW SPECIES OF FORAMINIFERA CUSHMAN 5 



bers distinct, somewhat inflated, particularly in the later portion, some- 

 what broader than high, increasing rather gradually in size as added ; 

 sutures distinct, becoming more depressed in the later portion, in the 

 biserial stage usually about at right angles to the elongate axis ; wall 

 very finely arenaceous, rather smoothly finished except for a series of 

 longitudinal depressions, particularly in the biserial portion ; aperture 

 in the biserial stage at the base of the inner margin of the last-formed 

 chamber, later becoming divided into two or more elongate openings, 

 and in the adult megalospheric form with numerous small rounded 

 openings in the terminal face. Length up to 3.50 mm ; diameter 

 0.80 mm. 



Holotype. — U.S.N.M. no. 26189; from station 93, latitude i8''38' 

 00" N., longitude 65°09'3o" W. to latitude i8°37'45" N., longitude 

 65°05'oo" W., 350 to 400 fathoms. 



This large species was found by Brady in the Challenger material 

 from this same general region and was referred by him to d'Orbigny's 

 Tcxtularia aggliitinans in the above reference. In our figured specimen 

 it is difficult to make out the terminal apertures, as they are too filled 

 with foreign material, but in the type species of the genus they are very 

 distinct. 



TRILOCULINA NASUTA, n. sp. 

 Plate 2, figs. 1-3 



Test very elongate, slender, the apertural end continued out into a 

 long, slender neck, three chambers visible from the exterior in the 

 adult, periphery broadly rounded ; chambers distinct, inflated, of a 

 peculiar shape, the apertural end greatly extended into a somewhat 

 compressed neck, convex on the outer side, and concave on the inner, 

 the basal portion distinct, expanded, somewhat curved, covering the 

 elongate neck of the preceding chamber ; sutures distinct, strongly 

 depressed : wall smooth, imperforate, calcareous ; aperture rounded, 

 reniform, usually with a slight tooth on the inner margin, and a distinct 

 lip. Length up to nearly i.oo mm; breadth 0.18-0.20 mm; thickness 

 0.12 mm. 



Holotype. — U.S.N.M. no. 26192; from station 26, latitude i8°3o' 

 20" N.. longitude 66°22'o5" W. to latitude i8°3o'3o" N., longitude 

 66°23'o5" W., 33 to 40 fathoms. 



This is a very peculiar species, with its very elongate, compressed 

 neck and peculiarly shaped chambers. It is rather common at some of 

 the stations. 



