FORAMINIFERA OF THE NORTH PACIFIC OCEAN. 81 



of Torres Straits, in 6 to 8 fathoms. Millett records it at one station 

 in the Malay region, Barvean Roads, between Java and Borneo, in 

 14 fathoms. The only material I have had that figured here is from 

 Nero station 2071, in 271 fathoms, off the Hawaiian Islands. 



This record links closely the distribution of this variety with the 

 typical form of the species. 



BILOCULINA COMATA H. B. Brady. 



Plate 34, fig. 1. 



Biloculina comata H. B. Brady, Quart. Journ. Micr. Sci., vol. 21, 1881, p. 45; 

 Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 144, pi. 3, figs. 9a, b. 



Description. — Test subglobular, the chambers very much inflated 

 and rotund, in end view subcircular, wall ornamented with numerous 

 fine longitudinal costae; aperture elongate, with a tooth with large 

 wing-like developments at the ends. 



Length, up to 2.5 mm. 



Distribution. — From most of the records for this species it seems 

 to be widely distributed at medium depths. In the North Pacific 

 material I have examined it has occurred at the following stations: 

 about the Hawaiian Islands, Albatross station H2922, in 268 

 fathoms; H3007 in 323 fathoms; Nero 200 in 625 fathoms; 366 in 1,511 

 fathoms and 1692 in 754 fathoms between Midway Island and Guam; 

 1410 in 1,444 fathoms between Guam and Japan. 



BILOCULINA COMATA H. B. Brady, var. SERRATULA, new variety. 

 Plate 34, figs. 2, 3. 



Description. — Test in general similar to B. comata, the ornamenta- 

 tion much closer and finer and less evenly distributed, the test being 

 a striated one rather than a test with costae as in the typical form; 

 the periphery with a few very prominent tooth-like projections; 

 apertural end contracted into a short neck; aperture itself nearly 

 circular with a small bifid tooth. 



Length, up to 2 mm. 



Distribution. — Type-specimen (Cat. No. 9164, U.S.N.M.) from Nero 

 station 1299 in 1,817 fathoms; others from Nero station 1294 in 

 1,417 fathoms and 1311 in 1,503 fathoms, all between Japan and 

 Guam. 



Added data may show that this is a definite species rather than 

 a variety of B. comata, as it has a considerable number of dis- 

 tinctive characters. More material, however, is desirable. 



BILOCULINA MILLETTU, new species. 



Plate 34, figs. 4, 5. 



Miliolina durrandii Millett (part) Journ. Roy. Micr. Soc, 1898, p. 2C8, pi. 6, 

 figs. 8-10 (not fig. 7). 



