Dr. Éva Murai szerk.: Miscellanea Zoologica Hungarica 3. 1985 (Budapest, 1985)
Györe, K.: Three ostracod species from Lake Velence new to the fauna of Hungary
distribution of the species covers the southern areas of the USSR, district of Harkov (BRONSTEIN, 1947); Kubany (SCHORNIKOV, 1961); in Germany the Lake Schlawaer, in Poland the north-eastern areas (KLIE, 1938); in southern Europe Lake Prespa (PETKOVSKI, 1960); Lake Ochrid (HOLMES, 1937); Lake Mindel (PETKOVSKI, 1977) and the rivers of North America (TRESSLER, 1966). Potamocypris variegata Brady & Norman, 1889 (Podocopa - Cypridacea - Cypridopsididae - Cypridopsinae) BRADY et NORMAN, 1889:91, figs 20-21; VÁVRA, 1898: 12; MÜLLER, 1900: 84, figs 3-4, 15-17, tab. 18; DADAY, 1900: 193; WOHLGEMUTH, 1914: 1-72; KLIE, 1923: 2-11; KLIE, 1926:37-53; BRONSTEIN, 1925: 1-30; FURTOS, 1933: 413-524; KLIE, 1935: 3; KLIE, 1937: 5, figs 3-9; KLIE, 1938: 143-144, figs 482-485; KLIE, 1939: 174; KLIE, 1941: 233-244; GAUTHIER, 1937: 147, figs 1-2; BRONSTEIN, 1947: 169, fig. 87, tab. X; FARKAS, 1958: 33-34, fig. 31; PETKOVSKI, 1961: 29-52; TRESSLER, 1966: 723, figs 28, 168; NÜCHTERLEIN, 1969: 269-270; HILLER, 1972:400-49 7; SYWULA, 1974: 255-271. In Lake Velence it has been found at the following localities and dates: 1975: Vaskapu 08.08; Császár patak 11.08; Nagytó-Rigya 11.08; Fürdető 06. 08; Velence (Schoenoplectus litoralis) 06.08, 15.08; Tizedes tanya 06. 08; Agárd 15.08. 197_6_: Alsóéri tisztás 06. 04; Császár patak 06. 04; Nagytisztás 07. 04; Fürdető 07. 04, 16.05, 17.08; Templomtisztás 07. 04; Öregtisztás 07. 04, 16. 05; Veréb-Pázmándi patak 17.08; Velence (Schoenoplectus litoralis)07.04, 16.05, 17.08; Lucskos 07.04, 16. 05, 17. 08. Male individuals are unknown, its reproduction is parthenogenetic. The right valve of the female is bigger, it covers the left valve on the back side. Length of the right valve is 0. 67 mm (literature data: 0. 51-0. 57 mm), its height is somewhat greater than half of its length. The left valve is lower (Fig. 4a, b). Seen from above, both ends of the valve are sharp, the greatest width can be measured at exactly half of its length. The natatory setae of the second antenna overlap the point of unguises on the two last joints (Fig. 4c). The penultimate joint of the second leg is divided, therefore the limb consists of five joints. The strong, well developed unguis of the last joint is elongatedly arched. There is a scratch on the third leg. The last joint of the antenna of the maxilla is widened, width of its proximal end is 100, and that of the distal end is 153 units. There are strong, short, unguis-like smooth setae on the joint (Fig. 4d). Its furca is rudimentary, flagelliform and both the upper and the lower setae are lacking. The flagellum of the furca is three times longer than the upper edge of the ramus, the lower unguis is well developed (Fig. 4e). 33 100 : 33 0 : 0 Dimensions of the valves: 1000 : 550 : 400 = 0. 67 : 0. 37 : 0. 27 It can be found in every type of water from spring till autumn. It prefers water densely covered with vegetation. In a few cases it has been found in rivers. Two-three generations are produced parthenogenetically annually. It seems to avoid waters of acidic character (Table 1). Distribution of the species: rivers Volga and Oka (BRONSTEIN, 1947); river Raba in in Poland (SYWULA, 1974); fishponds in Germany and England (KLIE, 1938); Lake Scutari in the Balkans (PETKOVSKI, 1961); the nearest occurrence to Hungary the river Garam at Alsószecse (KLIE, 1939; FARKAS, 1958); and extralimital to Europe in Asia Minor (KLIE, 1938) and in the small lakes of Ohio in North America (TRESSLER, 1966).
