378 BUULETIN 100, UNITED STATES NATIONAL, MUSEUM. 



Opercidina bartscM, var. plana — Material examined. 



Cat. 

 No. 



CoU. of- 



No.of 

 speci- 

 mens. 



Station. 



Locality. 



Depth 



in 

 fath- 

 oms. 



Bot- 

 tom 

 tem- 

 pera- 

 ture. 



Character of 

 bottom. 



Abundance. 



158S3 

 15884 

 15885 

 15886 

 15887 

 15888 

 15889 

 15890 

 15891 

 15892 

 15893 

 15894 

 15895 

 15896 

 15897 

 15898 

 15899 

 15900 

 15901 



U.S.N.M. 

 U.S.N.M. 



U.S.N.M. 

 U.S.N.M. 



U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 



10+ 



2 



1 



4 

 10+ 



2 



1 



5 

 10+ 



1 



5 



4 



9 



1 



7 



3 



6 



2 



4 



D5097. 

 D5105. 

 D5106. 

 D5142. 

 DS192. 

 D5201. 

 D5220. 

 DS230. 

 D5257. 

 D5315. 

 D5338. 

 D5339. 

 D5478. 

 D54S7. 

 D5493. 

 D5495. 

 D5512. 

 D5537. 

 D5538. 



14 19 15 N. 

 14 43 55 N. 

 14 23 55 N. 



6 06 10 N. 

 11 09 15 N. 



10 10 00 N. 

 13 38 00 N. 



8 50 45 N. 



7 22 12 N. 

 21 40 00 N. 



11 33 45 N. 

 11 22 00 N. 

 10 46 24 N. 

 10 02 45 N. 



9 04 00 N. 

 9 06 30 N. 



8 16 02 N. 



9 11 00 N. 

 9 OS 15 N. 



120 33 52 E. 

 120 12 50 E. 



120 32 33 E. 



121 02 40 E. 



123 50 00 E. 



125 04 15 E. 

 121 58 00 E. 



126 26 52 E. 



124 12 15 E. 

 116 58 00 E. 

 119 24 45 E. 

 119 12 00 E. 



125 10 30 E. 

 125 05 33 E. 

 125 20 00 E. 

 125 00 20 E. 

 123 58 26 E. 

 123 23 00 E. 

 123 23 20 E. 



30 



25 



37 



21 



32 



554 



50 



494 



28 



148 



43 



52 



57 



732 



478 



976 



445 



254 



254 



gy. m., s. 



52.8 

 ■4i."2' 



gy.m. 

 CO. s., sh.. 



gn-s 



gy. s., m.. 

 sf t. gn. m . 

 Ine. gy. s.. 



32.3 

 52.1 

 52.3 

 52.8 

 53.5 

 53.5 



s., sh 



Co., s., m , 



m 



sh 



gn.m 



gn.m 



gy.m 



gy.m.... 



gn.m 



gn.m.... 



Frequent. 



Few. 



Rare. 



Few. 



Frequent. 



Few. 



Rare. 



Few. 



Frequent. 



Rare. 



Few. 



Few. 



Common. 



Rare. 



Frequent. 



Few. 



Few. 



Few. 



Few. 



OPERCULINA BARTSCHI, new species, var. ORNATA, new variety. 



Plate 74, figs. 2a, b. 



Description. — Variety differing from the typical in the ornamenta- 

 tion, especially in the later portion of the test, where the granules, 

 instead of being confined to the surface of the chambers themselves, 

 appear only above the sutures. 



This variety occurs with the typical and with the preceding 

 variety, and at D5257, southern Mindanao, is a peculiar local race; 

 another occurs at D5640, Buton Strait. 



Operculina bartschi, var. ornata — Material examined. 



OPERCULINA PHILIPPINENSIS, new species. 



Description. — Tost compressed, not flaring, close-coiled, com- 

 planate; central area thickened by the proloculum only; thin 



