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)

DESCRIPTION OF TAXA FOUND IN THE CARPATHIAN BASIN Dina R. BLANCHARD, 1892 Trochetinae with the following annulation of preclitellar segments (Figs 6-7): I-IV: 1, V: 2, VI: 3, VII (XXIV): 5 (or more subdivided). Somite with widened annulus b6, often homonomously subdivided in ell and cl2. Dina lineata (O. F. MÜLLER, 1774) YllAHirudo lineata O. F. MÜLLER, Vermium terrestium et fluviatilum. Havniae et Lipsiae 1(2): 49. Smaller and slender leeches up to 40 (-70) mm length, annulation formula of somites: bl, b2, a2, b5. b6 (often subdivided in ell, cl2) (Fig. 14). Short and suctoroid oral sucker. Three simple and small pseudognaths (Fig. 11). Atrium restricted on somite XII, reaching from XII bl to XII b2fa2. Atrium thick, with short and simple spirally coiled cornua (Figs 12-13). Male gonopore in the furrow of XII b2/a2, female's on XII b6 or in XII cll/cl2 (b6 subdivided). Colour light reddish brown with dark paramediane stripes, neither papillae nor yellowish spots (Figs 10, 14). Western Palaearctis including Asia Minor and the Middle East. This semiaquatic species is widespread in the Carpathian Basin, known from the Alföld, Kisalföld and Vienna plain. It prefers temporarily flooded banks of lowland waters, rivers and streams as well as swampy districts of their floodplains (NESEMANN 1991). Dina punctata JOHANSSON, 1927 1927 Dina lineata var. punctata et var. notata JOHANSSON, Abh. Senckenberg. naturf. Ges. 39 (3): 229, Figs 5-6. Thicker and large leeches up to 70 (-85) mm length, annulation formula of somites variable, juvenils: bl, b2, a2, b5, cll,cl2, large adults: cl, c2, c3, c4, a2, c9, clO, ell, cl2 (or subdivided in d21,d22, d23, d24) (Figs 17-18, 23). Long and rostelloid oral sucker. Pseudognaths strongly developed (Fig. 19). Atrium restricted on somite XII, reaching from XI/XII to XII b2/a2. Atrium thick with curved cornua and simply coiled ends (Figs 20-21). Male gonopore in the furrow of XII b2/a2 (sometimes on XII a2), female invariable in XII b5/b6 (or subdivided in XII b5/cll) (Figs 17-18). Colour variable, in general black (adults) or dark reddish brown (juvenils), always with one pair of dirty paramediane stripes (Figs 15-16). Yellowish or light greyish spots transversal on each annulus in two rows (Figs 22-23). Western Europe: Ebro, Garonne, Rhine, Po, upper Danube and their tributaries. In the Carpathian Basin, D. punctata is strongly restricted to the Northwest (Danube and Lajta). The lower distribution limit in the Danube river is in the Alföld reach downstream from Budapest (Érd, Dunaújváros). This species prefers running and fast flowings streams and rivers with gravels and stony substrate. Dina apathyi GEDROYC, 1916 \9\6Dina apathyi GEDROYC, Rozpr. Wiad. Muz. Dzied. Lwów 2: 82-85, Fig. 23. Large and strong leeches up to 80 mm length, good swimmers. Annulation formula of somites constant: bl, b2, a2, b5, b6 (Fig. 29). Long and rostelloid oral sucker. Pseudognaths strongly developed (Fig. 27). Large atrium with long and straight cornua, the ends are simply coiled (Figs 25-26). Male gonopore in the furrow of XII b2/a2, female in XII b5lb6. Ground colour dark greenish or reddish black (Fig. 24), large tranversal yellowish spots on each annulus (Figs 28-29), arranged in one row (in two rows on b6). Central and East Europe, Carpathian Basin, northern tributaries of the Black Sea and southeastern tributaries of the Baltic coast. D apathyi inhabits slowly running rivers and streams of the lowlands. It was collected from the Danube (NESEMANN 1990, 1991) and Zagyva rivers in the Alföld and was recently found in the Strém, extremely southern Kisalföld.