56 FORAMINIFERA OF THE CRAG. 
and Tertiary fossiliferous clays. It occurs in the Lias, in the Chalk, and in the more 
recent formations of countries bordering on the Mediterranean. 
Living specimens have been found on our own coast, in the Mediterranean (320 
fathoms), and in the Indian Ocean (1120 fathoms); but it can scarcely be looked upon 
as a common recent species. 
DENTALINA OBLIQUESTRIATA, Reuss. Plate I, fig. 19. 
DENTALINA MATUTINA, D’Ord., 1850. Prodrome Paleont., p. 242, No. 259. 
— OBLIQUESTRIATA, Reuss, 1851. Zeitsch. Deutsch. Geol. Gesell., vol. iii, 
p:.63, pl. 3; figs. 11, 12: 
= GuIniTz1ana, Neugeboren, 1856. Denks. Akad. Wien. Math.-Natur. Cl. 
vol. xii, p. 91, pl. 4, fig. 15. 
— a Terquem, 1858. Mem. Acad. Imp. Metz., 39 année, p. 602, 
figs. 1l a, 6. 
— DIVERGENS, Reuss, 1864. Sitz. Akad. Wissen. Math.-Natur. Cl., vol. 1, 
1 Abtheil., p. 22, pl. 4, fig. 10. 
Characters —The same as those of D. odliqua, except that the stria, which m 
D. obliqua are parallel to the longitudinal axis of the shell, take an oblique direction in 
D. obliquestriata. Length *th inch. 
The artificial division which it has been necessary to adopt in reference to the nomen- 
clature of the Modosarine renders the trivial name given by Prof. Reuss applicable as a 
subvarietal distinction to the curved (Dentaline) specimens with oblique striz, although 
as early as 1791 straight (Nodosarian) forms similarly marked were figured by Batsch 
with the specific name “ od/iquata.” The straight and the curved specimens have the 
same kind of costation, and are not really distinct specifically, much less generically. 
There have been specimens figured, under various names, in which the oblique striz 
are interrupted and partial (like those on the congeneric Vaginuline shown by our Plate I, 
fig. 10). 
Occasional specimens of this obliquely ribbed form are met with wherever Vodosarine 
are abundant; but it is nowhere common, and we are not aware that it has been found 
in a recent condition. 
