REPORT OjST THE FORAMINIFERA. 
401 
can be said to distinguish them is that Bulimina ovata is more regularly ovate and 
generally rather longer proportionately than its allies ; that Bulimina affinis tapers more 
evenly towards the aboral extremity ; and that Bulimina pupoides has usually shorter 
segments, and their spiral arrangement is more apparent. It maybe questioned whether 
anything is gained by retaining “ species ” on these terms. 
Bulimina ovata is common in littoral sands on our own coast, and is generally 
distributed over the North Atlantic, at depths of less than 1400 fathoms. It occurs in 
the South Atlantic as low as 2200 fathoms ; and in the South Pacific from 15 to 580 
fathoms. It is found as a fossil in the Eocene beds of the Isle of Wight (Brady), in the 
Miocene of the Vienna Basin (d’Orbigny), in the later Tertiary deposits of Southern 
Italy (Costa), and in the Post-tertiary clays of Norway and the west of Scotland 
(Crosskey and Robertson). 
Of Bulimina affinis the Challenger collections furnish examples from the western 
coast of Patagonia, 565 fathoms, and from the deep area of the North Pacific, 3125 
fathoms. D’Orbigny’s single specimen was found in shore-sand from Cuba. There is 
nothing, to all appearance, in Reuss’s figures of Bulimina ovulum to separate them 
morphologically from the present species, and if that be so its geological history goes 
back as far as the Cretaceous epoch. 
Bulimina pupoides occurs upon our own shores, as well as over a wide area of the 
North Atlantic, ranging from shallow water to a depth of 1000 fathoms. It has also 
been met with in the Indian Ocean, off the Cape of Good Hope, and at various points 
amongst the islands of the South Pacific. In the fossil condition it is found in the 
Miocene of the Vienna Basin (d’Orbigny), in the later Tertiaries of the neighbourhood of 
Rome (Terrigi), and in the Post-tertiary deposits of Norway, Scotland, Italy, and Canada 
(Sars, Crosskey and Robertson, Vanden Broeck, Dawson). 
Bulimina elongata, d’Orbigny (PI. LI. figs. 1 ; and 2 ?). 
Bulimina elongata, d’Orbigny, 1846, For. Foss. Vien., p. 187, pi. xi. figs. 19, 20. 
„ eocena, Hantken, 1872, Jahrb. d. k. ungar. geol. Anstalt, vol. i. p. 136, pi. ii. fig. 16. 
This also is a form that might properly be placed in the same series as the foregoing, 
although in its extreme development the lower portion of the test is even more attenuated 
than the specimens represented in the drawings, and the whole shell is sometimes more or 
less curved. In point of contour fig. 1 stands about intermediate between d’Orbigny’s 
Bulimina elongata and Reuss’s Bulimina imbricata (Haidinger’s Naturw. Abhandl., 
vol. iv. p. 38, pi. iv. fig. 7), whilst the stouter specimen (fig. 2) is a connecting link with 
Bulimina ovata. 
Elongate varieties like these occur in the North Atlantic, 630 fathoms, and in the 
South Atlantic, 1425 fathoms. The localities given by d’Orbigny are — living, in the 
Adriatic (1), and fossil, in the Miocene at Nussdorf near Vienna. Von Hantken’s Bull- 
