FORAMINIFEKA. OF THE NORTH PACIFIC OCEAN. 29 



Polystomella crispa, var. (Nonionina) scapha Parker and Jones, Philos. Trans., 

 vol. 155, 1865, p. 404, pi. 14, figs. 37, 38; pi. 17, figs. 55, 56. 



Description. — Test somewhat compressed, composed of about ten 

 chambers in the last formed volution, chambers rapidly increasing 

 in length as added, especially in the adult test; chambers in front 

 view broadest near the proximal end gradually tapering to the 

 rounded periphery, earlier half of coil much narrower, whole test in 

 face view a little more than twice as long as wide; surface smooth, 

 punctate; aperture a narrow slit at the base of the apertural face, 

 simple. 



Diameter about 0.50 mm. 



Distribution. — -Brady records this species from three North Pacific 

 stations in from 7-345 fathoms, the last being off Japan on the 

 Hyalonema-growid. Flint records it from Albatross station D 2805 

 in 51 fathoms in Panama Bay and from the Gulf of Tokyo in 9 

 fathoms. Bagg records it from five Albatross stations off the Hawaiian 

 Islands, D 4000 in 104-213 fathoms, D 4025 in 275-368 fathoms, 

 H4440 in 1,259 fathoms, H 4567 in 1,307 fathoms and H 4696 in 

 367 fathoms. 



From the Nero material I have this species from station 1160 in 

 1,907 fathoms and 1237 in 613 fathoms. From the Albatross material 

 I have had it from D 3603 in 1,771 fathoms in Bering Sea and from 

 material from Holothurian stomachs, D 3608 in 276 fathoms. It also 

 occurred off the Galapagos Islands, D 2806 in 1,379 fathoms. Off 

 Japan it occurred at Albatross H 4878 in 84 fathoms, bottom tem- 

 perature 51.9° F., D 5054 in 282 fathoms, bottom temperature 45.3° 

 F., D 5056 in 258 fathoms, bottom temperature 46° F. and D 5085 

 in 622 fathoms, bottom temperature 37.8° F. 



There seems to be either considerable variation in this species or 

 else a number of forms included under a single name. The amount 

 of material is not sufficient to determine the limits of variation. 



NONIONINA TURGIDA (Williamson). 

 Plate 15, fig. 3. 



Rotalina turgida Williamson, Rec. Foram. Great Britain, 1858, p. 50, pi. 4, 



figs. 95-97. 

 Nonionina turgida H. B. Brady, Trans. Linn. Soc. London, vol. 24, 1864, p. 474, 



No. 91; Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 731, pi. 109, fig. 



17-19.— Terquem, Bull. Soc. Zool. France, vol. 11, 1886, p. 331, pi. 11, 



figs. 7, 8. — Egger, Abh. kon. bay. Akad. Wiss. Miinchen, CI. n, vol. 18, 



1893, p. 425, pi. 19, figs. 45, 46.— Millett, Journ. Roy. Micr. Soc, 1904, p. 



602. — Sidebottom, Mem. and Proc. Manchester Lit. and Philos. Soc, vol. 



53, No. 21, 1909, p. 13; vol. 54, No. 16, 1910, p. 29. 

 Polystomella crispa, var. (Nonionina) turgida Parker and Jones, Philos. Trans., 



vol. 155, 1865, p. 405, pi. 17, figs. 57a-c. 



Description— -Test composed of about ten chambers in the last 

 formed volution, very rapidly increasing in size as added, the last 



