132 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



BOLIVINA KARRERIANA H. B. Brady, var. CABIN ATA MiHett. 



Phite 27, fig. 1. 



Bolivina karrertana H. B. Brady, var. carinata Millett, Journ. Roy. Micr. Soc, 

 1900, p. 546, pi. 4, fig. 8.— Cushman, Bull. 71, U. S. Nat. Mus., pt. 2, 1911, p. 41, 

 figs. 66a, h (in text). 



Specimens of this variety and almost identical with the figure 

 given by Millett occm-red at two stations: D5255, Gulf of Davao, 

 160 fathoms (290 mxcters), bottom temperatm-e not recorded; D5278 

 China Sea, vicinity southern Luzon, 102 fathoms (187 meters), 

 bottom temperature 59.6° F., (15.3° C.) and D5443, east coast of 

 Luzon, 241 fathoms (441 meters), bottom temperature 51.3° F. 

 (10.6° C). The typical form of the species was not foimd at any of 

 these stations. 



Bolivina karreriana, var. carinata — Material examined. 



BOLIVINA HANTKENIANA H. B. Brady. 



Plate 27, fig. 2. 



Bolivina hantkeniana H. B. Brady, Quart. Journ. Micr. Sci., vol. 21, 1881, p. 58; 

 Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 424, pi. 53, figs. 16-18.— Cush- 

 MAN, Bull. 71, U. S. Nat. Mua., pt. 2, 1911, p. 42, figs. 68a, 6 (in text). 



From the records this is the most common species of the genus in 

 the region. Material is in considerable numbers and well distributed. 

 From a study of the material, both microspheric and megalospht^ric 

 forms of this species are present. In depth the range is from, 26 to 

 1,262 fathoms (21 to 2,309 meters). The bottom temperatures, 

 where given, range from 43.3° to 55.8° F. (6.1° to 13.2° C). 



In the southern portion of the area specimens were found at 

 D5592, vicinity of Sibuko Bay, Borneo, 305 fathoms (558 meters) ; 

 D5636, Pitt Passage, 1,262 fathcms (2,309 meters); and D5666, 

 Macassar Strait, 272 fathoms (498 meters). 



This seems to be definitely an Indo-Pacific species, now known as 

 far east as the Hawaiian Islands, southward to Tahiti and Australia, 

 and northward to southern Japan. Its western limits are not well 

 known. Lleron-Allen and Earland did not find it in the Kerijuba 

 Archipelago material off southeastern Africa. 



