ART. 6 FORAMINIFEKA: POLYMORPHINIDAE — CUSHMAN AND OZAWA 141 



mon in the Tertiary of Trinidad, where numerous other species now 

 living in the Indo-Pacific are found fossil. Our specimens represent 

 the following localities : 



Recent. — Pacific, Philippine expedition. Albatross D5143, vicinity 

 of Jolo, 19 fathoms; D5145, off Jolo, 23 fathoms; D5146, 24 fathoms, 

 D5148, 17 fathoms, both Sulu Archipelago, vicinity of Siasi; D5151, 

 24 fathoms, D5152, 34 fathoms, both Sulu Archipelago, off Tawi Tawi 

 Group; D5178, 78 fathoms, D5179, 37 fathoms, both off Romblon; 

 D5282, 248 fathoms, China Sea, off southern Luzon; D5318, 340 

 fathoms, China Sea, off" Formosa; D5569, 303 fathoms, north of 

 Tawi Tawi; D5580, 162 fathoms, Darvel Bay, Borneo; D2668, 9 

 fathoms, off Hongkong; Dusky Sound, New Zealand. 



Pliocene. — Saloenia, Benkoelan, Sumatra. 



Miocene. — Australia, Balcombian, lower beds. Muddy Creek, 

 Victoria. Janjukian, soapy clay bed in polyzoal limestone, Danger 

 Point, Torquay, Victoria. Green marl, Bird Rock cliffs, Torquay, 

 Victoria; Filter Quarry, Batesford, Victoria. Trinidad, ''Sagrina 

 beds," Orapouche Lagoon, Trinidad Point; " Uvigerina bed," Cipero 

 section; from oil-stained shales, just north of Point Bontour. 



Oligocene. — Australia, Clifton Bank near Hamilton, Victoria. 



jEbcene. ^Trinidad, Cipero section and Mount Moriah beds, 

 yellow sandy cla}^, underlying orbitoidal limestone, Vistabella quarry. 



SIGMOIDELLA KAGAENSIS Cushman and Ozawa 



Plate 39, figures 2, 5 



Sigmoidella kagaensis Cushman and Ozawa, Contr. Cushman Lab. Foram. 



Res., vol. 4, 1928, p. 19, pi. 2, fig. 14; Jap. Journ. Geol. & Geogr., vol. 6, 



1929, p. 76, pi. 13, fig. 15; pi. 16, fig. 9. 

 Polymorphina elegantissima H. B. Brady, Parker, and Jones, Trans. Linn. 



Soc, vol. 27, 1870, p. 231, pi. 40, fig. 15 a. 



Test broadly ovate, base very broadly rounded, apertural end 

 somewhat tapering, sides nearly parallel for more than half the 

 length, compressed, periphery subacute; chambers elongate, narrow, 

 five or six times as long as broad, arranged in an open, clockwise 

 sigmoid form, resulting in a test in which, when viewed from either 

 side, one elongate chamber appears at the left and all other visible 

 chambers are in a series of graduallj'' increasing length on its right, 

 and involute; sutures very distinct, curved, not depressed, except on 

 the growing edge, which is depressed; wall smooth, translucent; 

 aperture terminal, radiate. 



Length of holotype 1.50 mm.; breadth 0.70.; thickness 0.34 mm. 



The arrangement of the chambers in the species is in many ways 

 similar to that seen in Sigmoilina in the Miliolidae except that the 

 aperture is always at one end. It is closely related to Sigmoidella 

 elegantissima, but is a more elongate and narrow form and probably 



