REPORT ON THE FORA MTNTFFR, A . 
555 
Cristellciria gemmcita has been observed in sands dredged at three Pacific Stations, 
namely: — off Kandavu, Fiji Islands, 210 fathoms; off Paine Island, Torres Strait, 155 
fathoms ; and off the Philippines, 95 fathoms. 
Cristellaria aculeata, d’Orbigny (PI. LXXI. figs. 4, 5). 
“ Lituus innominatas,” Soldani, 1789, Testaceographia, vol. i., pt. 1, p. 64, pi. lvii. figs. T. t. 
Cristellaria aculeata, d’Orbigny, 1826, Ann. Sci. Nat., vol. vii. p. 292, No. 14. 
„ „ Jones and Parker, 1860, Quart. Journ. Geol. Soc., vol. xvi. p. 303, No. 43. 
The figure in the Testaceographia to which d’Orbigny assigned the name Cristel- 
laria aculeata, is wanting in those details which under ordinary circumstances are 
necessary for the identification of a species. It is, however, quite evident that it 
is intended to represent a Cristellarian shell, the surface of which is beset with small 
spines, and the peripheral edge with a certain number of larger ones ; indeed, there can 
be little doubt that the specimen from which the drawing was made was very s imi lar to 
those of which figures are given herewith. The sutural lines are not represented in 
Soldani’s illustration, but in the recent specimens they are marked by rows of rounded 
beads or tubercles. 
Cristellaria aculeata has only been obtained in the living condition from two 
neighbouring Stations in the Danish West Indies : — off Culebra Island, 390 fathoms, 
and off Sombrero Island, 450 fathoms. 
The habitat given by Soldani is the Subapennine formation of the vicinity of 
Sienna, to which d’Orbigny adds that of Coroncina. Parker and Jones report its 
occurrence in a Tertiary clay from near Malaga. 
Cristellaria costata, Fichtel and Moll, sp. (PI. LXXI. figs. 8, 9). 
Nautilus costatus, Fichtel and Moll, 1803, Test. Micr., p. 47, pi. iv. figs, g.h.i. 
Sjpinderules costatus, Montfort, 1808, Conchy 1. System., p. 222, genre 56 e . 
Lenticulina costata, Defrance, 1824, Diet. Sci. Nat., vol, xxxii. p. 182. — Blainville, 1825, 
Man. de Malacol., p. 390. 
Robulina costata, d’Orhigny, 1826, Ann. Sci. Nat., vol. vii. p. 289, No. 13. 
„ ariminensis, d’Orbigny, 1846, For. Foss. Vien., p. 95, pi. iv. figs. 8, 9. 
Cristellaria costata, Parker and Jones, 1860, Ann. and Mag. Nat. Hist., ser. 3, vol. v. p. 113, 
No. 19. 
This is a handsome and interesting species, readily distinguished by its surface- 
ornament of stout concentric costae, but liable to considerable variation as to its minor 
characters. Fichtel and Moll’s original drawings represent a shell with limbate sutures 
in addition to the costae, exactly as shown in fig. 9, but the periphery is more or less 
carinate. A thicker non-carinate specimen, of which the septa are scarcely visible 
