394 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



that of D5236, wliero the specimens were most frequent. Some of 

 the specimens are fine and large but all were very typical. 



In the Indo-Pacific region the species is known from off Funafuti 

 (Chapman), off western Australia (Egger), and off the east coast of 

 Australia (Sidebottom). 



A part of the material referred by Sidebottom to S piroloculina 

 nitida d'Orbigny^^ seems to be ptJialmidium inconstans, especially 

 figure 6, which is very typical. This may be compared to the figure 

 I have given^^ of the optical section. 



Genus SPIROLOCULINA d'Orbigny, 1826. 



SPIEOLOCULINA DEPRESSA d'Orbigny. 



Plate 81, fig. 2; plate 100, figs. 4, 5. 



Spiroloculina depressa d'Orbiony, Ann. Sci. Nat., vol. 7, 1826, p. 298. — William- 

 son, Recent Foramimfera of Great Britain, 1858, p. 82, pi. 7, fig. 177. — Cushman, 

 Bull. 71, U. S. Nat. Mus., pt. 6, 1917, p. 29, pi. 3, figs. 6-10. 



Spiroloculina limbata H. B. Brady (not d'Orbigny), Rep. Voy. Challenger, 

 Zoology, vol. 9, 1884, p. 150, pi. 9, figs. 15-17. 



This widely distributed species, characteristic of open ocean, is 

 rare in the Philippine region. The four stations represented the 

 following localities: China Sea, off Formosa; Sulu Sea, off western 

 Mindanao; and between Burias and Luzon. 



Spiroloculina depressa — Material examined. 



«s Joum. Roy. Micr. Soc., 1918, pi. 1, figs. 5, 6 (not flg, 7). 

 ^ Bull. 71, U. S. Nat. Mus., pt. 6, 1917, pi. 3, flg. 3. 



