Cypria sp.

Rausch, Lea & Stoica, Marius, 2019, AN EARLY PLEISTOCENE ANOMALOHALINE WATER OSTRACOD FAUNA FROM LAKE DEPOSITS OF THE HOMO ERECTUS-BEARING KOCABAŞ LOCALITY (SW TURKEY), Acta Palaeontologica Romaniae 15 (2), pp. 41-69 : 8

Cypria sp.

Description. The thin-walled carapace is distinctly arched to triangular in lateral view and subovate in dorsal view. The greatest height is located slightly in front of the mid-length. The ventral margin runs straight but shows a small depression about mid-length more visible from the interval view. The LV overlaps the RV. Both ends are almost symmetrically rounded with the anterior showing a slightly higher curvature. The dorsal margin is convex and notably pointed in the middle part. The surface of the valve is smooth. The inner lamella is moderately pronounced, with the anterior vestibulum being slightly wid- er than the posterior one. The hinge is adont and the dorsal margin of the smaller RV fits into a shallow groove in the LV. The central muscle scar forms a group of four larger scars and another two smaller scars that are located slightly below. Dimension: l = 0,52– 0,55 mm, h = 0,37– 0,40 mm,

Remarks. Our species differs from Cypria oftalmica (Jurine) being more triangular in shape from the lateral view and showing a clearly symmetrical and pointed convex dorsal margin.

Ecology. Cypria is one of the most common fresh water genera (Van Morkoven, 1962) living in a wide range of aquatic habitats like ponds, pools and ditches rich in plants. Only few species of the genus Cypria are described to prefer oligo-to mesohaline water conditions ( Keyser, 1977).