REPOET ON THE EORAMINIFERA. 
417 
Geographically speaking, the Bolivina; are very evenly distributed, without much 
reference to latitude. In one form or other the genus has been found at almost every 
depth down to 2000 fathoms, but shows a manifest preference for bottoms of less than 
300 or 400 fathoms. Its earliest occurrence in the fossil condition is in the Cretaceous 
period, and from that time forward it is a common constituent of marine microzoic 
deposits. 
Bolivina punctata, cl’Orbigny (PI. LII. figs. 18, 19). 
Bolivina punctata, d’Orbigny, 1839, Foram. Arner. Merid., p. 61, pi. viii. figs. 10-12. 
,, antiqua, Id. 1846, For. Foss. Vien., p. 240, pi. xiv. figs. 11-13. 
Grummostomum polystigma, Ehrenberg, 1854, Mikrogeoiogie, pi. xix. fig. 84. 
„ caloglossa , Id. Ibid., pi. xxv. figs. 17, 18. 
Bolivina punctata, Brady, 1864, Trans. Linn. Soc. Lond., vol. xxiv. p. 468, pi. xl viii. fig. 9, a.b. 
Bulimina presli, var. [Bolivina) punctata, Parker and Jones, 1865, Phil. Trans., vol. civ. p. 376, 
pi. xv ii. fig. 74. 
Bolivina elongata, Hantken, 1875, Mittheil. Jakrb. d. k. ung. geol. Anstalt, vol. iv. p. 65, pi. vii. 
fig. 14. 
„ antiqua, Terrigi, 1880, Atti dell’ Accad. Pont., ann. xxxiii. p. 196, pi. ii. fig. 40. 
„ punctata, Mobius, 1880, Foram. von Mauritius, p. 94, pi. ix. figs. 9, 10. 
The characters of Bolivina punctata, whether as to the proportionate dimensions of 
the test or the disposition of the segments, are well exemplified by the drawings, PI. LII. 
figs. 18, 19. In its typical condition, the species is represented by a slender Textulari- 
form shell, either straight or somewhat bent, and composed of a larger number of segments 
than most of its congeners, often as many as twelve or fourteen in each row. 
A very similar form was subsequently described by D’Orbigny under the name 
Bolivina antiqua. The figure is that of a shell with rather fewer chambers than the 
foregoing, and perhaps slightly more regularly Textularian in their arrangement ; but it 
presents no distinctive character of even varietal value. Later authors have frequently 
used the term Bolivina antiqua for broad varieties having the contour of Bolivina dilatata 
and Bolivina robusta, but for this course there is no warrant in the original description. 
But more frequently the term Bolivina antiqua has been employed for fossil specimens, 
and Bolivina punctata for recent ones. The sooner this anomaly is removed the better ; 
the latter was the name under which the form was first described, and it should take 
precedence. 
Bolivina punctata is a cosmopolitan species. Its area of distribution extends from 
Smith Sound, lat. 79° 35' N., and the shores of Novaya Zemlya, to Heard Island, in 
about lat. 53° S. It is found in the North and South Atlantic, in the North and South 
Pacific, in the Indian Ocean, the Red Sea, the Mediterranean, and the Arctic Ocean ; and 
its bathymetrical range embraces every depth from 2 fathoms to 2750 fathoms. 
It is nearly equally common in the fossil condition throughout the Tertiary epoch 
