28 BULLETIN 71, UNITED STATES NATIONAL MUSEUM. 



between which are usually secondary costse, solid and nontubulated, 

 aboral end with or without a spine or series of spines at the ends of 

 the primary costse. 



Length 0.60 to 0.85 mm. 



Distribution. — Brady records this species from a single North 

 Pacific Challenger station in 1,850 fathoms. I have had specimens 

 from several Nero stations; one between the Hawaiian and Midway 

 Islands, 165 in 2,135 fathoms and the following stations in the lines of 

 soundings between Guam and Yokohama; 1063 in 1,884 fathoms; 

 1145 in 2,119 fathoms; 1158 in 1,584 fathoms; 1301 in 1,088 fathoms; 

 1312 in 1,552 fathoms and 1323 in 1,583 fathoms. 



The more simple of the specimens here figured may be perhaps 

 closely related to L. striato-punctata in that it lacks the secondary 

 costse, but those costse which are present are decidedly catenulate in 

 character and I have included it here. 



LAGENA EXSCULPTA H. B. Brady. 

 Plate 13, fig. 5. 



Lagenulina sulcata Terquem (not Lagena sulcata (Walker and Jacob)), Essai 

 Animaux plage Dunkerque, pt. 2, 1876, p. 68, pi. 7, fig. 9. 



Lagena exsculpta H. B. Brady, Quart. Journ. Micr. Sci., vol. 21, 1881, p. 61; Rep. 

 Voy. Challenger, Zoology, vol. 9, 1884, p. 467, pi. 58, fig. 1; pi. 61, fig. 5 — 

 Sidebottom, Journ. Quekett Micr. Club, vol. 11, 1912, p. 392. 



Description. — Test subglobular or pyriform, rounded or com- 

 pressed, apertural half of test smooth and unornamented, aboral half 

 ornamented with numerous costse, not raised above the surface of the 

 remaining portion of the test, but made by the sculpturing of the 

 intermediate areas. 



Length 0.5 to 1.2 mm. 



Distribution. — Brady records this from a single Challenger station 

 in the North Pacific in 2,300 fathoms. I have had material from four 

 Nero stations between Guam and Yokohama as follows: 1294 in 

 1,417 fathoms; 1295 in 1,415 fathoms; 1305 in 1,289 fathoms; and 

 1315 in 1,494 fathoms. All the Challenger records are in compara- 

 tively deep water. 



All the North Pacific material which I have examined is of the 

 compressed form figured by Brady. 1 Sidebottom notes that his 

 South Pacific material is also of this same compressed form. 



1 Rep. Voy. Challenger, Zoology, vol. 9, 1884, pi. 61, fig. 5. 



