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)

ANNALES HISTORICO-NATURALES MUSEI NATIONALIS HUNGARICI Tomus 85. Budapest, 1993 p. 19-35 Identification key to the Hungarian leeches of the subfamily Trochetinae Pawlowski, 1954, with notes on systematics of the subfamily Erpobdellinae Blanchard, 1894 (Hirudinea) by H. NESEMANN, Wien 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). - Annls hist-nat Mus. nam. hung. 1993, 85:19-35. Abstract - Until now, 25 valid species and a number of subspecies of erpobdellid leeches are known from Europe. They belong to three subfamilies, of which the Trochetinae has the highest number of taxa. The subfamilies are newly defined: 1. Erpobdellinae sensu BLANCHARD with the genera Erpobdella and Nephelopsis, 2. Trochetinae sensu PAWLOWSKI, 1954, with the genera Dina and Archaeobdella, 3. Mooreobdellinae subfam. n., according to SAWYER (1986), with the genera Mooreobdella and Fadejewobdeila is described. An identification key to the six Trochetinae species of the Carpathian Basin is given and their morphological and anatomical features discussed. A new species, Trocheta riparia sp. n. was recently found in Pinka, Strém and Rechnitzbach (Rába river basin, Hungary, Austria), which were former tributaries of the Slavonian Lake of the Pliocene. With 49 figures. INTRODUCTION Since the work of Á. Soós (1963a, 1967), LUKIN (1962,1976) and SAWYER (1986), a lot of new features became known about the taxonomy and systematics of West Palaearctic Erpobdelliformes (MINELLI 1978, NESEMANN 1990, SAPKAREV 1990, SKET 1989, SKET & SAPKAREV 1986). We can differentiate three different lines within the family Erpobdellidae. They are to be regarded as subfamilies, which are easily distinguished by the annulation, structure of the head and male genital system. The species can be identified by external morphology, but the form and size of the atrium and the pharyngeal pseudognaths are characteristic, too. An identification key is presented for all species of the genera Dina and Trocheta, found in freshwaters of the Carpathian Basin. It can be used for the fauna of the upper and middle reaches of the Danube river basin in Germany, Austria and Hungary. MATERIAL AND METHODS During 1987-1992 leeches were collected by the author at many localities of the upper and middle Danube and its tributaries. They were all killed with 15% ethylalcohol and preserved in 70% alcohol. The material is deposited in the author's collection and in the collection of the Zoological Department of the Hungarian Natural History Museum, Budapest. / »