198 



BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



NODOSARIA SUBPOLYGONA Cushman. 



Plate 35, figs. 4a, 4b, 5. 

 Nodosaria subpolygona Cushman, Proc. U. S. Nat. Mus., vol. 51, 1917, p. 654. 



Description. — Test elongate, only very slightly tapering except in 

 the microspheric fomi, polygonal in end view, chambers numerous, 

 not at all inflated, sides parallel or very nearly so, sutures very 

 slightly if at all depressed, apertural end with a short stout neck, 

 aperture large, circular; surface ornamented by six raised ridges 

 giving a hexagonal appearance in end view. 



Length up to 5 mm. 



Distribution. — Typej'specimens (U.S.N.M. No. 9110) from Alba- 

 tross station D5318 in 340 fathoms (622 meters), China Sea, vicinity 

 of Formosa. 



Both microspheric and megalospheric forms of the species occur at 

 this station, the former having numerous chambers and a tapering 

 base, the latter with a very large proloculum and the succeeding 

 chambers but slightly increasing in size and fewer than in the micro- 

 spheric form. 



The polygonal form with few ridges and the short neck with large 

 aperture will distinguish this species. 



Nodosaria subpolygona — Material examined. 



NODOSARIA CATENULATA H. B. Brady. 



Plate 35, fig. 7. 



Nodosaria catenulata H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 

 p. 515, pi. 63, figs. 32-34.— Flint, Rep. U. S. Nat. Miis., 1897 (1899), p. 312, 

 pi. 58, fig. 2.— Cushman, Ball. 71, U. S. Nat. Mus., pt. 3, 1913, p. 57, pi. 25, 

 fig. 3. 



Very typical specimens were found at the following Philippine 

 stations: D5242, in 191 fathoms (350 meters), vicinity of Pujada 

 Bay, bottom temperature 64.1° F. (17.8° C); D5255, in 100 fathoms 

 (183 meters). Gulf of Davao; D5259, in 312 fathoms (571 meters), 

 off northwestern Panay, bottom temperature 49.3° F. (9.6° C); 

 D5368, in 181 fathoms (331 meters), off Marinduque Island; and 



