. Bulletin - United States National Museum. Science. FORAMINIFERA OF THE PHILIPPINE AND ADJACENT SEAS. 379 throughout, opaque; chambers 15 to 20 in the last-formed coil; surface of the chambers smooth; sutures ornamented by a row of raised tubercles, the sutures typical, nearly straight, then near the periphery bend back sharply to the outer edge. Diameter 3-5 mm. Distribution.—Type specimen (Cat. No. 15923, ) from Albatross station D5134, Sulu Archipelago, near Basilan Island, 25 fathoms (46 meters). This is a common species in the Philippine area, and while some of its specimens show
. Bulletin - United States National Museum. Science. FORAMINIFERA OF THE PHILIPPINE AND ADJACENT SEAS. 379 throughout, opaque; chambers 15 to 20 in the last-formed coil; surface of the chambers smooth; sutures ornamented by a row of raised tubercles, the sutures typical, nearly straight, then near the periphery bend back sharply to the outer edge. Diameter 3-5 mm. Distribution.—Type specimen (Cat. No. 15923, ) from Albatross station D5134, Sulu Archipelago, near Basilan Island, 25 fathoms (46 meters). This is a common species in the Philippine area, and while some of its specimens show re- lations with other species it is usually distinct. At Albatross station D5428 there is a local race, differing from the typical in the larger size, and in the very prominent keel which in the adult is thicker than that part of the test which is adjacent to it; the rows of beads in the adult specimens usually become fused. OpereuUna pMlippinensis—Material Fig. 15.—Operculina philip- pinensis, new species. side VIEW. X15. From station D5134. Cat. No. Coll. of— No. of speci- mens. Station. Locality. Depth in fath- oms. Bot- tom tem- pera- ture. Character of bottom. Abundance. o , „ c , „ °F. 15918 , 6 14 19 15 N.; 120 33 52 28 gy. m., Few. 15919 6 14 23 55 N.; 120 32 33 37 gy-in Few. 15920 2 1) 13 59 20 N.; 120 75 45 135 dk. gy. Few. 15921 10 1) Island off Panabutan Point, N.; 15° W., mile. 26 gn. m.,s Frequent. 15922^ 10+ Island oft Panabutan Point N.; 52° E., miles. 38 gn. m.,B Frequent. 15923 10-f- 6 44 45 N.; 121 48 00 25 Frequent. 15924 2 6 04 30 N.; 120 59 30 23 ,sh Few. 15925 10+ 5 01 40 N.; 119 52 20 18 gn. m Frequent. 15926 10+ 12 43 00 N.; 122 06 15 78 Frequent. 15927 6 12 38 15 N.; 122 12 30 E.
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
