8 FORAMINIFERA OF THE CRAG. 
TRILOCULINA EBURNEA, /d., 1839. For. Cuba, p. 180, pl. 10, figs. 21—23. 
— Martiana, IT. Coemnirziana, T. nitipa, D’Ord., 1839. For. Canar., pl. 3, 
figs. 16—24. 
a CONSOBRINA, D’Ord., 1846. Foram. Foss. Vien., p. 277, pl. 17, figs. 
10—12. 
QuinquELocuLIna Maverrana, Id., 1846. For. Foss. Vien., p- 287, pl. 18, figs. 1—3. 
TRILOCULINA MICRODON, Reuss, 1850. Denks, Akad. Wien., vol.i, p. 382, pl. 49, fig. 9. 
— NITENS, Id., 1850. Ibid., p. 383, pl. 109, fig. 10. 
MILIOLINA SEMINULUM, var. OBLONGA, Williamson, 1858. Rec. Foram. Gt. Brit., p. 86, 
pl. 7, figs. 186, 187. 
TRILOCULINA OBLONGA, Parker and Jones, 1857. Ann. Nat. Hist., ser. 2, vol. xix, p. 300, 
pl. 10, fig. 37; 1859, ibid., ser. 3, vol. iv, p. 343; 1863, vol. xii, 
p- 437. 
Miziota (TRILocuLINA) consoBrina, Hgger, 1857. Foram. Mioc.-Schicht., p. 10, pl. 2, 
figs. 7, 8. 
TRILOCULINA OBLONGA, Brady, 1864. Trans. Linn. Soc., vol. xxiv, p. 472. 
MiLioLta (QUINQUELOCULINA) oBLONGA, Parker and Jones, 1865. Phil. Trans., vol. elv, 
p- 411, pl. 15, figs. 34—41; pl. 17, 85, a, 85, 6, 
86, a, 86, b. 
Characters.—Shell, elongated, compressed, margins of the chambers rounded. Length, 
4th inch. / 
It is of but little consequence whether we regard this feeble flattened J/i/iola as 
belonging to the Triloculine or the Quinqueloculine group. In the feeblest forms, which 
are perhaps the most distinct from the type, it is Triloculme; but examples may easily be 
found which would form a regular series, passing by insensible gradations to the fully 
developed Quinqucloculina seminulum. The Crag specimens are generally Tniloculine ; 
those in Mr. Searles Wood’s collection from Sutton are singularly fine; from the Crag 
with Cardita senilis (Gedgrave) we have but one or two small examples. In Mr. Sorby’s 
gatherings from the Bridlington Crag the specimens are numerous, but not so large as 
those from Sutton. 
Triloculina oblonga is found in shallow water, associated with other A/liole, in seas 
of every latitude; and minute specimens have been met with, even in abyssal depths, in 
the North Atlantic (2330 fathoms). We find it in most marine Tertiary clays, but it 
does not seem to date back further than the Eocene period. 
The synonymy of Mihola seminulum, var. oblonga, is very extensive. ‘This variety 
accompanies the better marked forms of JZi/io/a, and has received very many appel- 
lations. 
