FORAMIjSTIFEEA of the PHILIPPINE AND ADJACENT SEAS. 381 

 OpermUni (Vsoidalif, v.ir. itivoluta — M'tterial exmnmed. 



OPERCULINA GH.4NrLOS.\ Leymerie. 



Operculina granulosa Leymerie, Mem. Soc. geol. France, ser. 2, vol. 1, 1846, 

 p. 359, pi. 13, figs. 12, a, b. 



To this species described by Leymerie from the Eocene of France 

 are referred specimens from Tacloban Anchorage, where they occurred 

 in great numbers, and from D5276, China Sea, vicinity of south- 

 ern Luzon, 18 fathoms (33 meters). This is a close-coiled form, with 

 a fairly large proloculum, very numerous chambers, larger size, with 

 a definite keel; the others with the sutures ornamented by lines of 

 tubercles, in the last development becoming solid lines; the test com- 

 posed of usually about two and one-half coils. 



These are referred with a question to Leymerie's species and are 

 the only ones in the area which seem like that figured by the author, 

 and it is doubtful if they really are the same. 



Operculina granulosa — Material examined. 



Cat. 

 No. 



15986 

 1.5985 



Coll. of— 



U.S.N.M. 

 U.S.N.M. 



No. of 

 speci- 

 mens. 



10+ 

 10+ 



Station. 



I ocality. 



D5276...| 13 49 15 N.: 120 14 45 E.. 

 Tacloban Anchorage, P. I. 



Depth 



fath- 

 oms. 



Bot- 

 tom 

 tem- 

 pera- 

 ture. 



Character of 

 bottom. 



sh.,p.,s. 



Abundance. 



Frequent. 

 Frequent. 



OPERCULINA ELEGANS, new .species. 



Plate 97, fig. 3. 



Description. — Test biconvex, smooth, and polished, translucent, 

 usually of a brown color; somewhat involute; sutures of clear 

 shell material, but not ornamented; peripher}^ bluntly rounded. 



Distrihution. — Type specimen (Cat. No. 15988, U.S.N.M.) from 

 Albatross station D5579, off Darvel Bay, Borneo. 



This seems to be much different from any of the other species 

 described, and probably represents a localized species in this partic- 

 ular region. 



