142 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 6 



base of the inner margin of the last-formed chamber, in a slight re-en- 

 trant. Length of holotype, 0.82 mm. ; width, 0.52 mm. ; thickness, 

 0.44 mm. 



Holotype (AHF no. 30) from Hancock Expedition Station 548, 

 Cupica Bay, Colombia, depth 12 fms. 



This species is quite distinctive and has been noted only along the 

 west coast of Panama and Colombia. It has been found at the follow- 

 ing Hancock Expedition stations: 304, 506, 514, 548, 553, and 556. 



Distribution. — ^At the present time this species has been recorded in 

 the region of Panama and off the coast of Colombia, in 12 to 50 fms. 



Textularia solita (Schwager) 

 Plate 16, Figs. 26a, b, c 



Plecanium solita Schwager, Novara-Exped., Geol. Theil, vol. 2, 

 1866, p. 195, pi. 4, figs. 6a-c. 



Textularia solita Cushman, Bernice P. Bishop Museum Bull. 119, 

 1934, p. 104, pi. 10, figs. 2a, h. 



Test subtriangular in outline, much compressed, biconvex in top 

 view, periphery acute, somewhat lobulate ; chambers numerous, somewhat 

 wider than high, the upper margin raised slightly and the lower margin 

 depressed; sutures distinct, depressed, gently curved upward; wall thin, 

 especially in the later chambers which are often broken, finely arenaceous, 

 smoothly finished, composed of very fine arenaceous grains with con- 

 siderable calcareous cement; aperture a large opening in a pronounced 

 re-entrant at the inner margin of the last chamber. Length of figured 

 specimen, 1.07 mm.; greatest width, 0.82 mm.; thickness, 0.42 mm. 



This species was first described from the Pliocene sediments of Kar 

 Nicobar Island. It was reported from marl beds in Fiji by Cushman. It 

 has been found at stations 2009, 2016, 2022, 2034, and 2072 of the 

 Hancock Expeditions. 



Distribution. — In the Gulf of California with a depth range of 15 to 

 112 fms. At the Inner Gorda Bank off Mexico the records show a depth 

 of 112 and 163 fms. 



Textularia vola Lalicker and McCulloch, new species 

 Plate 16, Figs. 27a, h, c, d, e 



Test small, compressed, subrectangular in front view, subrhomboidal 

 in top view, peripheral margin constricted, subacute, and serrate in some 



