68 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 6 



Reophax pilulifer H. B. Brady 

 Plate 4, Fig. 6 



A very few specimens are referred to this species. Most of them 

 are incomplete but they strongly suggest this in their form. They are 

 from localities: 55, 216, 522, 2016. 



Distribution. — Mexico, in the Gulf of California off Point Escon- 

 dido Bay in 138 fms. and North Isla Partida in 180 fms. Off the rocks 

 of San Lorenzo Island, Callao, Peru, in 25 fms. 



Reophax communis Lacroix 

 Plate 3, Fig. 12 



Reophax communis Lacroix, Bull. Instit. Oceanographique, no. 549, 

 1930, p. 4, figs. 5-7 (in text). — Earland, Discovery Rep'ts, vol. X, 1934, 

 p. 81, pi. 2, figs. 29, 30. 



Lacroix has described and figured a tiny species from the Medi- 

 terranean and the Atlantic. Earland also records it from off the Falk- 

 lands. Occasional specimens in our collections in size and general char- 

 acters seem to fit well with this species but specimens are very rare. 

 They are from stations 577, 586. 



Distribution. — Off Cape San Francisco, Ecuador, in 15 fms.; 

 Sechura Bay, Peru, in 10 fms. 



Genus AMMOFRONDIGULARIA Schubert, 1902 

 Ammofrondicularia compressa Cushman and McCulloch, 



new species 

 Plate 4, Figs. 7-13 



Test one and one-half to two and one-half times as long as broad, 

 very much compressed, generally rhomboid in front view, greatest 

 breadth somewhat above the middle, periphery subacute; chambers in- 

 distinct from the exterior, increasing rapidly in size as added, earlier 

 ones narrow, later becoming very broad and chevron shaped ; wall com- 

 posed of sand grains and large flakes of calcareous fragments, surface 

 rough ; aperture narrow, elongate, terminal, without distinct neck. 



Length up to 3.00 mm; diameter 1.00-2.25 mm. 



Holotype (AHF no. 4) from locality 447. 



