DESCRIPTION OF A LIMESTONE OF LOWER MIOCENE AGE. 287 
LITHOTHAMNION SP. 
A laminate or encrusting species also occurs in the lime- 
stone. It has numerous conceptacles immersed below the 
surface of the thallus, and therefore belongs to the above 
genus. The specimen is probably the encrusting condition 
of the foregoing species, which, being attached to a free 
particle, is prevented by its motion from taking on the 
dendroid habit of the normal form. 
FORAMINIFBRA. 
Fam. Miliolide. 
Genus MILIOLINA, Williamson. 
MILIOLINA SP. 
A section across the test of a milioline occurs in one of 
the limestone sections. It resembles M. circularis, Borne- 
mann sp. in general contour. It belongs, moreover, to a 
group which is at home in shallow-water deposits in all 
parts of the world. 
Fam. Textuluriide. 
Genus TEXTULARIA, Defrance. 
TEXTULARIA RUGOSA, Reuss sp. 
Plecanium rugosum, Reuss, 1869, Sitzungsb. d. k. Ak. Wiss. 
Wien, Vol. LIX, p. 433, pl. i, figs. 3a, b. 
Textularia rugosa, Rss. sp., Brady, H. B., 1884, Rep. Chall. 
Vol. Ix, p. 363, pl. xlii, figs. 23, 24. Chapman, 1907, 
Journ. Linn. Soc. Lond., Zool. Vol. xxx, p. 27, pl. iii, 
nes. o7. 
A vertical section showing the characteristic features 
of the test of the above species occurs in one of the thin 
slices of limestone. It isa peculiarly restricted coral reef 
species, although very rarely found under other and more 
argillaceous conditions in warm temperate seas. EHspeci- 
ally was this so in past times, as in the Oligocene of Gaas, 
