192 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 6 



Because later authors have placed other forms under this name, there has 

 been some confusion in regard to it, but the species as d'Orbigny described 

 it is very distinctive and limited in its distribution. 



Stations: 323, 522, 529, 533, 534, 536, 537, 573, 574. 



Distribution. — The above records place this species in Salinas Bay, 

 Costa Rica, in 8 fms. and off the coast of Peru w^ith a depth range from 

 6 to 100 fms. 



Bolivina doniezi Cushman and Wickenden 

 Plate 23, Fig. 5 



Bolivina doniezi Cushman and Wickenden, Proc. U.S. Nat. Mus., 

 vol. 75, art. 9, 1929, p. 9, pi. 4, figs, 2>a, b. — Cushman and Kellett, I.e., 

 art. 25, 1929, p. 8, pi. 3, figs. 8^^ b. — Cushman, Special Publ. 9, Cush- 

 man Lab. Foram. Res., 1937, p. 140, pi. 19, fig. 6. 



Test small, depressed, broadest near the apertural end; chambers 

 comparatively fevir, consisting of 8 or 10 pairs; vi^all very coarsely perfor- 

 ate, the earlier chambers with a few coarse perforations near the basal 

 margin, the adult chambers with the coarse perforations scattered over the 

 general surface; chambers fairly narrow, but becoming higher toward 

 the apertural end; sut-ures distinct, depressed, strongly oblique; aperture 

 elongate, arched, in the median line, at the base of the last-formed cham- 

 ber. Length 0.36 mm.; breadth 0.15 mm.; thickness 0.10 mm. 



The types of this species are from off Juan Fernandez. A few speci- 

 mens in our collections seem to belong to this species. 



Stations: 61, 100, 313, 464, 469, 472, 502. 



Distribution. — These records indicate a range beginning off San 

 Francisco Island, Mexico, in 17 fms.; Secas Islands, Panama, in 25 fms.; 

 three stations off Charles and Hood islands, Galapagos, in 10-15 fms.; 

 and oft" La Libertad, Ecuador, in 15 fms. 



Bolivina goudkoflfi Rankin 

 Plate 23, Figs. 6, 7 



Bolivina goudkoffi Rankin MS., in Cushman and Kleinpell, Contr. 

 Cushman Lab. Foram. Res., vol. 10, 1934, p. 22, pi. 4, figs. 4, 5. — Cush- 

 man, Special Publ. 9, Cushman Lab. Foram. Res., 1937, p. 101, pi. 11, 

 figs. 11, 12. 



Test elongate, about 3 times as long as broad, broadly elliptical in 

 transverse section, periphery broadly rounded, sides nearly parallel or 



