ART. 6 FORAMINIFERA: POLYMORPHINIDAE — CTJSHMAN AND OZAWA 31 



adjacent to it; sutures very distinct, depressed; wall smooth, polished, 

 thick, translucent; aperture radiate, terminal. 



Length 1.50 mm.; breadth 0.75 mm. 



Holotype. — (Geological Institute, Imperial University of Tokyo, 

 Japan.) From the upper Pliocene, Sawane, Island of Sado. 



This species is evident!}^ the same as that figured by Brady.* 

 Brady's specimens are from the Australian region, and are not the 

 same as d'Orbigny's Polymorpfdna {Guttulina) oblonga from the 

 Miocene of the Vienna Basin, which is a much smaller species as well 

 as differing in other characters. Topotypes of d'Orbigny's species 

 have been compared with the Japanese specimens. 



In the Albatross collections, the species occurs at Stations D4807, 

 44 fathoms and D4826, 114 fathoms off Japan. 



GUTTULINA YABEI Cushman and Ozawa var. OVALE Cushman and Ozawa 



Plate 40, figure 6 



Guttulina yahei Cushman and Ozawa var. ovale Cushman and Ozawa, Jap. 

 Journ. Geol. and Geog., vol. 6, 1929, p. 68, pi. 13, fig. 3; pi. 14, fig. 7. 



Variety differing from the typical form in having the sutures less 

 depressed, and the chambers less inflated, due to the greater over- 

 lapping of the chambers. The figured specimen measured 2.5 mm. 

 in length, and 1.1 mm. in breadth. 



The types are from the upper Pliocene of Sawane, Island of Sado, 

 Japan. 



guttulina SPICAEFORMIS (Roemer) 



Plate 5, figures 1, 2 



Polyniorphina spicaeformis Roemer, Neues Jahrb. fiir Min., 1838, p. 386, 



pi. 3, fig. 31. 

 Polymorphina austriaca d'Orbigny var. io Cushman and Applin, Bull. 



Amer. Assoc. Petr. Geol., vol. 10, 1926, p. 174, pi. 9, figs. 6, 7. 

 Guttulina plancii d'Orbigny, Vo}^ Amer. Merid., vol. 5, pt. 5, "Foramini- 



feres," 1839, p. 60, pi. 1, fig. 5. 

 Polymorphina uviformis Reuss, Zeitschr. deutsch. geol. Ges., vol. 7, 1855, 



p» 289, pi. 11, fig. 5. 



Test fusiform, initial end rounded, apertural end acute, margin 

 slightly lobulate; chambers clavate, but little embracing, arranged in 

 a contraclockwise, quinqueloculine series, each succeeding chamber 

 removed from the base; sutures depressed, distinct; wall smooth; 

 aperture radiate. 



Length 0.35-0.75 mm.; breadth 0.20-0.35 mm.; thickness 0.12- 

 0.25 mm. 



In general form, Guttulina spicaeformis most resembles Guttulina 

 austriaca d'Orbigny from the Vienna Basin in that it has rather short, 

 clavate chambers combined so as to form a typical fusiform test. It 



« Challenger Report, vol. 9, 1884, pi. 73, figs. 2, 3. 



