MILIOLIDAE - Acta Palaeontologica Polonica

82 EWA l.UCZKOWSKA
are less elongated and of smaller size than Quinqueloculina karreri
(Reuss). They differ from Cyclojorina toreuma (Serova) in having more
regular ribs, occuring on the whole surface of the chambers, not on the
periphery only.
Distribution. - Poland: Lower Sarmatian, (Budy, Dwikozy, Grzyb6w,
Miechocin, Rytwiany, Zrecze). USSR: Lower Sarmatian, southwestern
border of the Russian Platform, Precarpathian Foredeep, Transcarpathians.
Cyclojorina lachesis (Karrer, 1868)
(pI. XI, Fig. 1a-c; Text-fig. 28/3)
1868. Quinqueloculina lachesis Karrer; F. Karrer, p. 146, PI. 2, Fig. 4.
Material. - 30 specimens (ColI. No. F-132, Sec. No. 366).
Dimensions: L 0.5-1.2; B 0.27-0.62; T 0.18-0.43.
Description. - Test irregularly quadrangular, elongate, periphery
acute; chambers broad with single sinuous keel, which is divided into two
blunt carinae at the base, middle chamber distinct, with single keel bent
at the bottom; the whole test gives the impression of being irregularly
twisted; sutures depressed; surface rough, marked by numerous irregular
shallow longitudinal depressions; aperture small, circular, at the end of
a narrow short neck, surrounded with a thickened rim.
Variability. A distinctive feature of the species is the distortion of the
test and its rough surface. The width of the test is variable and the edges
are more or less acute and sinuous.
Dimorphism and ontogeny. The specimens sectioned belong to the
micro generation; PD 30 11. The sections show a constant chamber shape
during the ontogeny (Text-fig. 28/3).
Remarks. - The transverse marks which appear on the surface of the
specimen figured by Karrer were not observed in specimens from Poland.
As Karrer did not mention the presence of these marks in the description,
they are regarded as a feature unimportant to the determination of the
species.
Distribution. - Poland: Tortonian (Gliwice Stare, Korytnica, W~glinek).
Czechoslovakia: Lower Tortonian, Zidlochovice. Romania: Tortonian,
Kostej in Banat.
Cyclojorina lucida (Karrer, 1868)
(pI. XII, Fig. 4a-c; Text-fig. 28/2)
1868. Quinqueloculina lucida Karrer; F. Karrer, p. 147, PI. 2, Fig. 7.
Material. - 70 specimens (ColI. No. F-133, Sec. No. 174).
Dimensions: L 0.55-1.2; B 0.22-0.45; T 0.1-0.22.
Description. - Test strongly elongated, regular, protracted at both
ends, periphery rounded; chambers tubular, narrow, of uniform width,