NO. 6 CUSHMAN, MCCULLOCH : LAGENIDAE 327 



Saracenaria sp. 



Plate 42, Fig. 13 



Very rare specimens from Station 222, 4-10 fms., in small bay west 

 of Braithwaite Bay, Socorro Island, Mexico, and Station 223, 53 fms., 

 Sulphur Bay, Clarion Island, Mexico, show a more elongate form 

 than the preceding but not enough specimens are available to place it 

 specifically. 



Stations : 222 and 223. 



Genus VAGINULINA d'Orbigny, 1826 



Vaginulina exilis Cushman and McCulloch, new species 



Plate 42, Figs. 14-21 



Test elongate, slender, early portion strongly compressed and some- 

 what coiled, later in a rectilinear series and nearly circular in section, 

 initial end rounded ; chamber distinct, earlier ones very low and increas- 

 ing gradually in height and becoming inflated ; sutures distinct, somewhat 

 thickened, later ones depressed and more oblique; wall finely costate; 

 aperture terminal, radiate, with a distinct neck. Length up to 3 mm.; 

 diameter up to 0.40 mm. 



Holotype (AHF no. 68) from Station 411, 45 fms., north of Dun- 

 can Island, Galapagos Islands. 



The microspheric forms of this species are like Vaginulina but the 

 megalospheric forms might be placed in Dentalina if the others were not 

 present. 



Stations: 328, 329, 330, 406, 411, 412, 429, 438, 450, 461, 474, 481, 

 and 488. 



Distribution. — ^These records place this species off Cocos Island and 

 in the waters of the Galapagos Islands. The depth range is 12 to 175 

 fms. with an average of 80 fms. The largest number of specimens were 

 found in the sample off Albemarle Island in 80 fms. 



Genus FRONDIGULARIA Defrance, 1824 



Frondicularia gigas Church 



Plate 43, Figs. 1-4 



Frondicularia gigas Church, Journ. Pal., vol. 3, 1929, p. 303, text 

 figs. 1,2. 



Test very large, strongly compressed, about twice as long as broad, 

 periphery rounded, initial end with two or three short but coarse spines ; 

 chambers distinct, the earlier ones spiral, later taking on the typical 

 inverted V-shape, increasing but slightly in height as added, slightly if 



