174 
THE VOYAGE OF H.M.S. CHALLENGER, 
Miliolina pulchella, d’Orbigny, sp. (PI. VI. figs. 13, 14, PI. III. figs. 10-13). 
“ Frumentaria Seminula,” &c., Soldani, 1798, Testaceographia, vol. ii. p. 53, pi. xviii. fig./. 
Quinqueloculina -pulchella, d’Orbigny, 1826, Ann. Sci. Nat., vol. vii. p. 303, No. 42. 
„ echreibersii, Id. 1846, For. Foss. Vien., p. 296, pi. xix. figs. 22-24. 
„ plicosa , Costa, 1856, Atti dell’ Accad. Pont., vol. vii. p. 322, pi. xxv. figs. 2, 5. 
,, pulchella, Parker, J ones / and Brady, 1871, Ann. and Mag. Nat. Hist., ser. 4, vol. viii. 
p. 250, pi. viii. fig. 19. 
„ ,, Terquem, 1878, Mem. Soc. geol. Fr., ser. 3, vol. i. p. 68, pi. xii. figs. 11-14. 
The bold, somewhat irregular Quinqueloculine Miliolce, with large, more or less 
interrupted, longitudinal ridges and furrows, are well typified in the Soldanian figure 
selected by d’Orbigny as the type of Quinqueloculina pulchella. The species is a 
very variable one, and the shells have frequently a secondary ornamentation of fine 
longitudinal strise, in addition to the thicker costae. They sometimes attain a length of 
T \,th inch (2 ’5 mm.) or more. M. Terquem figures an interesting series of specimens in 
various conditions of growth, in his memoir on the Foraminifera of the Upper Pliocene 
beds of the island of Rhodes, and from these it would appear that the young Miliolce 
figured in PL III. figs. 10-13 of this Report are most of them referable to the present 
species. 
Miliolina pulchella is not uncommon amongst the large Miliolce of comparatively 
shallow water, that is to say, at depths of less than 100 fathoms. It occurs on the 
northern portions of our own coast, and occasionally elsewhere in the North Atlantic, in 
the Mediterranean, and, more rarely, amongst the East Indian Islands. 
In common with other striate and costate Miliolce its geological range appears limited 
to the middle and later portions of the Tertiary epoch. It is found in Miocene beds of 
the Vienna Basin (d’Orbigny), and in the later Tertiary deposits of Italy (Soldani, Costa), of 
Sicily (Jones and Parker), and of the island of Rhodes (Terquem). 
Miliolina linnceana, d’Orbigny, sp. (PI. VI. figs. 15-20). 
Triloculina linnceana, d’Orbigny, 1839, Foram. Cuba, p. 153 pi. ix. figs. 11-13. 
Quinqueloculina josepliina, Id. 1846, For. Foss. Vien., p. 297, pi. xix. figs. 25-27. 
,, „ Costa, 1856, Atti dell’ Accad. Pont., vol. vii. -p. 321, pi. xxv. fig. 4. 
Under the name Triloculina linncecma, d’Orbigny depicts (loc. cit.) a modification or 
variety of Miliolina pulchella, which takes the place to a great extent of the typical form 
in tropical seas. It differs from Miliolina pulchella in its comparatively thin and 
outspread contour, which sometimes approaches that of Spiroloculina, the costae being few, 
thick, and well-marked. A nearly identical form is described in the “ Vienna Basin ” 
memoir with the name Quinqueloculina josephina. 
The Challenger collections have furnished specimens from eight Stations, all in the 
neighbourhood of the coral islands of the Pacific, and within the tropical zone. The same 
variety also occurs in the littoral sands of Madagascar and of the West Indies. 
