274 



BULLETIN 100, UNITED STATES NATIONAL. MUSEUM. 



UVIGERINA ASPERULA Cajzek. 



Plate 54, fig. 5; plate 55, fig. 8. 



TTvigerina asperula Czjzek, Haidinger's Nat., Abh. 2, 1848, p. 146, pi. 13, figa. 

 14, 15.— H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 578, 

 pi. 75, figs. 6-8.— Flint, Rep. U. S. Nat. Mus., 1897 (1899), p. 320, pi. 68, fig. 

 4.— CusHMAN, Bull. 71, U. S. Nat. Mus., pt. 3, 1913, p. 101, pi. 43, fig. 1. 



This species is almost as frequent in its occurrence as Uvigerina 

 aculeata and has a similar distribution in the region. The range of 

 depth is the same, 234 to 901 fathoms (428 to 1,648 meters), the aver- 

 age 445 fathoms (814 meters) being slightly more. The bottom tem- 

 peratures range from 38.2° to 56.4° F. (3.4° to 13.5° C.) with the 

 average 46.5° F. (8.0° C). This is slightly lower also than for U. 

 aculeata. One station was from 24 fathoms (44 meters). 



Uvigerina asperula — Material examined. 



UVIGERINA AMPULLACEA H. B. Brady. 



Plate 55, fig. 7. 



Uvigerina asperula Czjezk, var. ampullacea H. B. Brady, Rep. Voy. Challenger, 



Zoology, vol. 9, 1884, p. 579, pi. 75, figs. 10, 11.— Flint, Rep. U. S. Nat. Mus., 



1897 (1899), p. 320, pi. 68, fig. 5. 

 Uvigerina ampullacea Egger, Abh. kon. bay. Akad. Wiss. Munch en, CI. II, vol. 18) 



1893, p. 313, pi. 9, fig. 37.— CusHMAN, Bull. 71, U. S. Nat. Mus., pt. 3, 1913, 



p. 102, pi. 42, fig. 3. 



Although less common than some of the other species this has 

 occurred at too large a number of stations to list separately. They 

 range in depth from 265 to 885 fathoms (485 to 1,618 metei-s), aver- 

 age 550 fathoms (1,005 meters), and bottom temperatures from 38.2*^ 

 to 56.4° F. (3.4° to 13.5° C), the average 45.6° F. (7.5° C). 



In the region this species has occasionally occurred with Z7. asperula, 

 but more often not, and on the whole they seem well distinguished 

 from one another. 



