REPORT ON THE FORAMINIFERA. 
169 
Miliolina ftchtelicina, d’Orbigny, sp. (PI. IY. fig. 9, a.b.c.). 
Triloculina ficliteliana, d’Orbigny, 1839, Foram. Cuba, p. 152, pi. ix. figs. 8-10. 
„ suborbicalaris, Id. Ibid. p. 156, pi. x. figs. 9-11. 
„ webbiana, Id. 1839, Foram. Canaries, p. 140, pi. ill. figs. 13-15. 
The three cl’Orbignian species above referred to represent striate varieties of 
Miliolina subrotunda. They are all Triloculine Miliolce of the broad outspread type, 
with more or less inflated chambers and rounded periphery, and present a similar 
surface-ornament of fine parallel longitudinal lines. They differ somewhat amongst 
themselves in minor particulars, but within limits similar to those recognised in the case 
of the unornamented species. The figured shell resembles most the drawings of Trilo- 
culina webbiana, but there are many specimens, even in the same dredging, in which the 
breadth of the final segment and the size of the aperture are less conspicuous features. 
In addition to the littoral sands of the West Indies and the Canary Islands (the 
localities given by d’Orbigny), Miliolina jicliteliana occurs in similar material from 
Madagascar, in dredged sand from the Inland Sea of Japan, 14 fathoms, and from 
the Chinese Sea. 
Miliolina circularis, Bornemann, sp. (PI. IV. fig. 3, a.b.c ; and PI. Y. figs. 13, 14 ?). 
Triloculina circularis, Bornemann, 1855, Zeitscbr. d. deutsch. geol. Gesell., vol. vii. p. 349, pi. 
xix. fig. 4 
I doubt very much whether there is any constant or reliable distinction between 
the Triloculina circularis of Bornemann and Miliolina subrotunda, and whether any good 
purpose is served by endeavouring to retain both species. The original figure of the 
former portrays a thicker and more tumid shell than Miliolina subrotanda, the final 
segment being especially convex and embracing ; and the aperture is a simple 
crescentiform slit. Its claim for recognition depends on these two characters alone. 
Specimens corresponding to this description have been found at three Challenger 
Stations: — off Prince Edward’s Island, 50 to 150 fathoms; off Christmas Harbour, 
Kerguelen Islands, 120 fathoms; and Bass Strait, 38 fathoms. 
Those originally described by Bornemann were Tertiary fossils from the Septaria- 
clay of Hermsdorf, near Berlin. 
Miliolina circularis, var. sublineata, nov. (PI. IV. fig. 7, a. b.c.). 
Similar in general contour, disposition of segments, form of aperture and dimensions 
to Miliolina circularis. Shell thin and often sub-translucent ; decorated with a surface 
ornament of delicate, interrupted, longitudinal striae. 
I have only met with the substriate variety in one locality — off the Admiralty Islands, 
on the north coast of New Guinea, 15 to 25 fathoms. 
