NO. 4 CUSHMAN AND MCCULLOCH : SOME VIRGULININAE 189 



Contr. Cushman Lab. Foram. Res., vol. 6, 1930, p. 57, pi. 8, fig. 3. — 

 Cushman, Special Publ. 9, Cushman Lab. Foram. Res., 1937, p. 140, 

 pi. 19, figs. 7-11. 



Test elongate, 2% to 3 times as long as broad, very much compressed, 

 peripherj^ subacute, usually not keeled, the width after the first few 

 chambers increasing slowly; chambers very distinct, narrow in the young, 

 in the adult about 21/^ times as long as broad ; sutures oblique and curved, 

 early ones limbate, later ones thin and somewhat depressed; wall very 

 finely perforate, smooth except for the very base, which occasionally has 

 a trace of one or more costae on the proloculum, and one or two follow- 

 ing chambers; color of test light silvery gray, polished. Length up to 0.80 

 mm. ; breadth 0.40 mm. 



The types are from Lydonia station 30, Lat. 7° 01' N., Long. 81° 48' 

 W., in 428 fms. It also occurs northward along the west coast of America 

 at least as far as Oregon, and may possibly have been recorded as B. 

 aenariensis from farther north. It occurs in the upper Pliocene of Cali- 

 fornia in typical form, and has the same silvery gray test in well-preserved 

 specimens. It is one of the characteristic and abundant species of the 

 western coast of America. 



In our material this species has occurred at but few stations, but it is 

 often difficult to separate it from Bolivina interjuncta Cushman, var. bi- 

 costata Cushman, which may account for the many records of the former. 



Stations: 82, 260, 261, 473, 629, 634, 1069, 1070, 1077, 1083, 1095, 

 1096, 1097, 1099. 



Distribution. — Most of the above records are for the regions off the 

 Channel Islands and range in depth from 1 7 to 230 fms. In the Gulf of 

 California the record is for 52 fms. ; off the San Benito Islands it is 16-42 

 fms. A single record for Galapagos, Hood Island, is for 73 fms. The 

 records for Port Said and Singapore are for less than 10 fms. 



Bolivina bramlettei Kleinpell 

 Plate 22, Figs. 7-13 



Bolivina bramlettei Kleinpell, Miocene Stratigraphy of California, 

 1938, p. 267, pi. 21, figs. 9-11. 



"Test compressed, fusiform in outline, broadest somewhat above the 

 middle, periphery acute, serrate; chambers distinct, somewhat inflated, 

 about 10 or 11 pairs, earlier 7 or 8 pairs low and making up about half 

 the test, last 3 pairs more overlapping and becoming successively higher, 



