96 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 6 



Test minute, elongate, tapering, earliest whorl with four or five 

 chambers, remainder of test triserial, broadest near the apertural end; 

 chambers numerous, as many as twenty-five, inflated; sutures depressed; 

 wall arenaceous, exterior smoothly finished, amount of cement and fine 

 material proportionately large; aperture in a deep depression at inner 

 margin of last-formed chamber. 



Length up to 0.65 mm; diameter 0.20 mm. 



This species is known mostly from cold waters. In our material it is 

 rather common and widely distributed, showing some variation in size 

 and material of the wall. It occurs at the following stations: 278, 547, 

 475, 543, 411, 329, 508, 413, 461, 213, 1022, 1034, 1021, 1033, 1023, 

 585, 466, 511, A-6, 2008, 2065, 2005, 2017, 2063, 2057, 2024, 2046, 

 414, 111, 275, 271, 573, 258, 330, A-1, 473, A-3, A-4, 540, 553, 244, 

 569. 



There are a number of specimens in our material that may be the 

 young of this species which are not recorded here. They seem shorter 

 and stouter than the young stages of E. advena usually show but are 

 left until more material is available. 



Distribution. — From Cordova, Alaska, in 2 fms. to Peru in 45 fms. 

 off Hormigas de Afuera. 



Eggerella pusilla (Goes) 

 Plate 10, Figs. 2, 3 



Verneuilina pusilla Goes, Bull. Mus. Comp. Zool., vol. 29, 1896, 

 p. 39, pi. 5, figs. 6-8.— Cushman, Bull. 71, U. S. Nat. Mus., pt. 2, 

 1911, p. 57, text fig. 92. 



Eggerella pusilla Cushman, Special Publ. No. 8, Cushman Lab. 

 Foram. Res., 1937, p. 51, pi. 5, figs. 16, 17. 



Test elongate, very slightly tapering, rounded in transverse section, 

 sides nearly parallel for most of their length, earliest whorls with more 

 than three chambers, soon developing three chambers in a whorl which 

 continues throughout the rest of the development ; chambers distinct, 

 slightly inflated, increasing very slightly in size as added in the adult; 

 sutures distinct, depressed, sometimes filled and obscured; wall finely 

 arenaceous, with a few coarse grains and much cement; aperture at the 

 inner margin of the last-formed chamber, arched. 



