NO. 21 FOURTEEN NEW SPECIES OF FOKAMINIFERA CUSHMAN J 



inflated ; sutures distinct, slightly depressed ; wall smooth except for 

 the keel and the ridges, imperforate, calcareous; aperture narrowly 

 elongate, largely filled by the broad tooth with the ends somewhat 

 expanded. Length 1.00-1.40 mm; breadth 0.90-1. 10 mm; thickness 

 0.90 mm. 



Holotypc. — U.S.N.M. no. 26198; from station 104, latitude i8°3o' 

 40" N., longitude 66°i3'2o"W. to latitude i8°3o'io" N., longitude 

 66°i3'5o" W., 80 to 120 fathoms. 



The series of figures given shows the development of this peculiar, 

 ridged form, which is smooth in the early stages and then develops a 

 single, strong ridge, and, in the adult, supplementary ones in addition. 



PYRGO NASUTUS, n. sp. 



Plate 3, figs. 1-4 



Test in the adult in front view about as broad as long, in the early 

 stages usually somewhat longer than broad, periphery strongly keeled 

 and serrate in the adult, apertural end, particularly in the young stages, 

 extended into a much compressed neck, somewhat convex on the dorsal 

 outer side, and flattened or concave on the inner ; chaml:)ers distinct, 

 inflated; sutures distinct, slightly depressed; wall smooth, imper- 

 forate, calcareous ; aperture narrow, elongate, somewhat curved with- 

 out a distinct tooth. Length 0.60-0.75 mm ; breadth 0.45-0.60 mm ; 

 thickness 0.30-O.35 mm. 



Holotype. — U.S.N.M. no. 26200; from station 56, latitude 19° 10' 

 15" N., longitude 69°27'2o" W. to latitude i9°io'i5" N., longitude 

 69°28'o5" W., 17 fathoms. 



The series of figures shows the developmental stages of this unusual 

 form, which may be distinguished particularly by the peculiarly shaped 

 neck. 



GORDIOSPIRA RUGOSA, n. sp. 

 Plate 3, figs. 5-7 



Test in a somewhat open coil, nearly planispiral, periphery broadly 

 rounded ; the coils slightly involute ; sutures distinct, depressed ; wall 

 imperforate, calcareous, with numerous transverse wrinkles ; aperture 

 large, formed by the open end of the tubular chamber. Diameter 0.60- 

 0.75 mm ; thickness 0.20-0.22 mm. 



Holotype. — U.S.N.M. no. 26202; from station 104, latitude i8°3o' 

 40" N., longitude 66°i3'2o"W. to latitude i8°30'io" N., longitude 

 66°i3'5o" W., 80 to 1 20 fathoms. 



This is a tropical species of this genus which has hitherto been 

 known largely from the Polar regions. It is very strongly rugose. 



