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

Physocypria fadeewi Dubowsky, 1926 (Podocopa - Cypridacea - Candonidae - Cyclocyprininae) DUBOWSKY, 1926: 84, figs 10-18; SCHÄFER, 1934: 560, figs 1-6; HOLMES, 1937: 484-500; KLIE, 1938:88-89, figs 311-315; ROME, 1943:1-8; BRONSTEIN, 1947: 186- 197, fig. 103; FARKAS, 1958:40, fig. 39; PETKOVSKI, 1960: 117; SCHORNIKOV, 1961:131-141; TRESSLER, 1966:675, figs 28, 34; NÜCHTERLEIN, 1969:254-2 55; HILLER, 1972: 441; BELDESCU, 1961: 7-13. Synonyms: Physocypria kliei Schäfer, 1934; P. perlata Rome, 1943; P. kraepelini G. W. Müller, 1903 (Holmes, 1937); P. kliei Schäfer, 1934 (Klie, 1938); P. kliei Schäfer, 1934 (Petkovski, 1960); P. kliei Schäfer, 1934 (Hiller, 1972). In Lake Velence it has been found at the following localities and dates (Fig. 1): 1975: Császár patak 11.08; Fürdető 06. 08; Velence Schoenoplectus litoralis 06. 08, 15.08; Tizedes tanya 06. 08; Agárd 15.08. 1976: Alsóéri tisztás 06. 04, 15.05, 16. 08; Lángitisztás 15.05, 16. 08; Kajtor 06.04, 15.05, 16. 08; Császár patak 06. 04, 15.05, 16, 08; Német tisztás 15. 0 5, 16.08; Vendel 06.04, 16. 08; Nagytó-Rigya 16.08; Kiscserepes csapás 15.05, 16.08; Hollós tisztás 16. 08; Templomtisztás 07. 04, 17.08; Öregtisztás 17. 08; Fürdető 07.04, 16.05,17. 08; Lucskos 07. 04, 16.05, 17. 08; Felső-tó 17. 08; Pörös bokra 08.04. 1979: Alsóéri tisztás 06.08; Kajtor 06.08; Császár patak 06. 08; Lángi tisztás 06. 08; Vendel 06.08; Kiscserepes csapás 07. 08; Hollós tisztás 07. 08; Templomtisztás 09. 08; Lucskos 09.08; Felső-tó 09.08; Égett-nád 09. 08; Pörös bokra 09. 08. Table 1. Tolerance of three ostracod species to ecological factors Ecological Candona Physocypria Potamocypris factors holzkampfi fadeewi variegata Temperature C° 12 0.2-27. 1 11.5-32.0 pH 9.0 7. 0-11. 1 7. 4- 9. 1 _ 3 Ca mg. dm 17-22 12-109.8 12-42 _3 Mg mg. dm 145-205 75-288 25-288 Na mg. dm 213-360 165-362 165-362 K mg. dm"

3 37-68 29-72 29-72 COg mg. dm 114-228 48-228 48-228 HCO mg. dm"

3 563-669 422-1068 422-1068 - 3 CI mg. dm 139-196 14-1170 18-212 _ 3 SO„ mg. dm 4 b 241-420 205-420 205-420 Conductivity pS 2026-2889 886-3170 886-3170 Its valves are short, high and seen from above, they are rather narrow. The edge of the right valve is tuberculated on each side. The right valve is highest at its middle, being two-thirds of its length. The ventral side is straight, in some individuals slightly rounded. In top view both of its ends are rounded, its width is the greatest just behind its central part; here it is equal to half of its length (Fig. 3a, b). The natatory setae of both of the antennas are extremely long. The first joint of the maxilla is strongly swollen, the last joint is narrow, and three well developed smooth setae can be seen (Fig. 3h). The two setae on the third masticatory appendix are thickened and smooth. The second leg consists of five joints, the penultimate joint on the third leg is not divided, the last joint is short. Two of the three setae are of the same shortness and pale-like, but the third one is very long 18:18:100 (Fig. 3g). Its furca is well developed, the lower seta is more than two times longer than the width of the ramus at the height of the lower seta (Fig. 3g). 153 100 73 23 145 37 53 H 8