FORAMINIFERA OF THE PHILIPPINE AND ADJACENT SEAS. 201 



NODOSARU SUBSCALARIS Cushman. 



Plate 36, fige. 2 a, b. 



Nodosaria subscalaris Cushmak, Proc. U. S. Nat. Mus., vol. 51, 1917, p. G54. 



Description. — Test elongate, composed of few chambers, mucronate 

 at the apical end, earlier chambers close-set, the later ones often 

 somewhat separated, inflated, sutures depressed, surface ornamented 

 with numerous (up to 40) longitudinal costae, apertural end with a 

 thick, tapering neck with 9 or 10 prominent, plate-like costae ex- 

 tending from the upper end of the ornamentation of the body of the 

 chamber to the apertural end of the neck; aperture small, rounded. 



Length up to 5 mm. 



Distribution. — Type specimens (U.S.N.M. No. 9111) from Albatross 

 station D5178, in 78 fathoms (143 meters), vicinity of Romblon, 

 where the species was very abundant. It also occurred at D5277 in 

 80 fathoms (146 meters), China Sea vicinity of southern Luzon, bot- 

 tom temperature 58.6° F. (14.7° C). 



This species differs from typical N. scalaris in the apertural char- 

 acters especially, our species having a stout conical neck with very 

 prominent longitudinal costae, while typical scalaris has a much 

 narrower cylindrical neck with annular raised costae. This char- 

 acter is constant in the two species, as can be seen in specimens 

 where the chambers are separated and the apertural characters of 

 several chambers can be studied. The two species also do not occur 

 mixed at the same station. 



The apertural ornamentation and general characters suggest very 

 strongly that of Lagena striata (d'Orbigny), var. Tiaidingeri (Czjzek).*^ 



Nodosaria subscalaris — Material examined. 



NODOSARIA SUBSCALARIS Cushman, var. PAUCI-COSTATA Cushman. 



Plate 36, figs. 3, 4. 



Nodosaria subscalaris Cushman, var. pauci-costata Cushman, Proc. U. S. Nat. Mus., 

 vol. 51, 1917, p. 654. 



Description. — ^Variety differing from the typical in the lesser num- 

 ber of costae (12-25) and in the apertural characters which in the 

 variety consist of a stout nearly cylindrical neck, with about 15 

 costae, which are continuations of the costae of the body portion. 



» Cushman, Bull. 71, U. S. Nat. Mus., pt. 3, 1913, pi. 7, fig. 6. 



