FORAMINIFERA OF THE PHILIPPINE AND ADJACENT SEAS. 223 

 ' CRISTELLARIA ROTULATA (Lamarck). 



"Cornu Hammonis seu Nautili" Plancus, Conch. Min., 1739, p. 13, pi. 1, fig. 3. 

 Lenticuliles rotulata Lamarck, Ann. Mus., vol. 5, 1804, p. 188, No. 3; vol. 8, 



1806, pi. 62, fig. 11. 

 Cristellaria rotulata d'Orbigny, H. B. Brady, Rep. Voy. Challenger, Zoology, 



vol. 9, 1884, p. 547, pi. 69, figs. 13a, 6.— Cushman, Bull. 71, U. S. Nat. Mus., 



pt. 3, 1913, p. 66, pi. 35, fig. 3. 



Typical specimens of this species were obtained from numerous 

 stations in the area; in the China Sea off Hongkong; between Burias 

 and Luzon; off Marinduque; west and east coasts of Luzon; between 

 Samar and Leyte; between Negros and Siquijor; north of Tawi Tawi; 

 Sibuko Bay, Borneo ; and Gulf of Boni. 



These stations range in depth from 20 to 565 fathoms (37 to 1,033 

 meters); with an average depth of 357 fathoms (653 meters). The 

 average bottom temperature where given was 50.3° F. (10.1° C). 



Cristellaria rotulata — Material examined. 



CRISTELLARIA ROTULATA (Lamarck), var. UMBONATA Cushman. 



Plate 43, fig. 3. 



Cristellaria rotulata (Lamarck), var. umbonata Cushman, Proc. U. S. Nat. Mus., 

 vol. 51, 1917, p. 656. 

 Description. — Variety with the umbonal region greatly produced by 

 a large mass of clear shell substance, standing out clearly above the 

 rest of the test. 



Distnbuiion. — Type specimen (U.S.N.M. No. 9122) from Albatross 

 station D5217, in 105 fathoms (193 meters), between Burias and Luzon, 

 bottom temperature 63.1° F. (17.2° C). Besides at the type station 

 the variety was found at the following Albatross stations: D5184. in 



