Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 85. (Budapest 1993)
Nesemann, H.: Identification key to the Hungarian leeches of the subfamily Trochetinae Pawlowski, 1954, with notes on systematics of the subfamily Erpobdellinae Blanchard, 1894 (Hirudinea)
Trocheta DUTROCHET, 1817 Trochetinae with the following annulation of preclitellar segments (Figs 5, 8): I-II: 1, II-V: 2, VI: 3, VII: 5, VIII (-XXIV): 7 (-9 subdivided). Somite with widened annulus b6, always hetreronomously subdivided in cll,d23 and d24. Trocheta bykowskii GEDROYC, 1913 1913 Trocheta bykowskii GEDROYC, Bull, internat. Acad. Cracovie, Ser. B.: 32, Figs 1-5. 1990 Trocheta bykowskii (partim): NESEMANN, Z. angewandt. Zool. 77 (2): 235, Figs 13a-b. Thick and large leeches up to 80 (-140) mm length, annulation formula of somites: el, c2, b2, a2, b5, ell, d23, d24. Long and rostelloid oral sucker. Pseudognaths strongly develloped. Pharynx with small accessory pseudognaths and folds (Fig. 34). Atrium restricted on somite XII, reaching from XII cl/c2 to XII b2/a2. Atrium thick and strong with simple spirally coiled cornua (Figs 32-33). Male gonopore in the furrow XII b2/a2, female's in XII bS/cll. Colour whitish grey or light reddish transparent, sometimes pink (Figs 30-31). Nor spots neither stripes (Fig. 35). Central European mountains and hilly countries. T. bykowskii occurs in springs, caves and fast flowing mountain streams. The leeches prefer phreatic habitats with water temperatures lower than 15 °C It is known from the Carpathians, the southern Alps and adjacent areas. This species was recently found in the Wienerwald mountains (Mauerbach) and in the Aggteleki-karszt (upper Bódva). Trocheta cylindrica ÖRLEY, 1886 1886 Trocheta cylindrica ÖRLEY, Math, és term.-tud. Közlem. 22: 91-92. 1990 Trocheta bykowskii (partim): NESEMANN, Z. angewandt. Zool. 77 (2): 237, Figs 15a-b. Very large leeches up to 180 (-220) mm length. Annulation formula of somites: cl, c2, b2 (or subdivided in c3, c4), a2 (or subdivided in 63, b4), c9, clO, ell, d23, d24 (Fig. 43). Juvenils up to 25-35 mm length without visible annulation and extremely flattened body like worms (Figs 38-39), preclitellar region cylindrical (name !). Long and rostelloid oral sucker, very large and hyaline pseudognaths together with a number of (accessory) smaller ones (Fig. 40). Atrium extraordinarily elongated, reaching from XII b2la2 to XI cllld23. Cornua without coiled ends (Figs 41-42). Male gonopore in the furrow of XII b2/a2, female in XII clO/cll. Colour black or unicoloured blackish dark red. Neither stripes nor ligth spots (Figs 36-37). Body surface rough with 30-70 transversal papillae on each annulus, irregularly arranged in two or three rows (Fig. 43). Ponto-Sarmatian species, tributaries of the Black and Egean Sea, from extremely eastern Austria to Georgia. T. cylindrica prefers lowland rivers and streams. It is known from all parts of the Alföld, Kisalföld and eastern Vienna plain. Trocheta riparia sp. n. 1990 Trocheta bykowskii (partim): NESEMANN, Z. angewandt. Zool. 77 (2): 236, Figs 14a-b. Localities: Pinka near Woppendorf (NESEMANN 1990): Rechnitzbach near Rechnitz, a small brook of the Gyöngyös-Perint river basin (NESEMANN 1990), Pinka between Gaas and Szentpéterfa, 1 September 1992, leg. WOSCHITZ, G. et H. NESEMANN; Pinka near Burg, 1 September 1992, leg. WOSCHITZ, G. et H. NESEMANN; Strém W Tarodfa, Tó-rét, August 1992, leg. WOSCHITZ, G. et H. NeSEMANN. H o 1 o t y p e: Pinka near the mill of Gaas, 1 specimen. 1 September 1992, leg. WOSCHITZ, G. et H. NESEMANN, Hungarian Natural History Museum, Zoological Department, Budapest. Paratypes: from the same collection, 12 specimens. Locus typicus: Pinka river, lower reach in Hungary and Austria between Szentpéterfa and Gaas. Derivatio nominis: The Latin name of this species indicates its semiaquatic habitat in running waters.