Vol. 14(3): 99–168 MOLECULAR PHYLOGENY, SYSTEMATICS AND MORPHOLOGICAL CHARACTER EVOLUTION IN THE BALKAN RISSOOIDEA (CAENOGASTROPODA) MAGDALENA SZAROWSKA Department of Malacology, Institute of Zoology, Jagiellonian University, Ingardena 6, 30-060 Kraków, Poland (e-mail:
[email protected]) ABSTRACT: Morphological characters in 33 Balkan rissooid genera (Adriohydrobia, Adrioinsulana, Alzoniella, Anagastina, Belgrandiella, Bithynia, Boleana, Bythinella, Bythiospeum, Daphniola, Dianella, Emmericia, Graecorientalia, Graziana, Grossuana, Hauffenia, Heleobia, Horatia, Hydrobia, Islamia, Lithoglyphus, Litthabitella, Marstoniopsis, Orientalina, Paladilhiopsis, Parabythinella, Pontobelgrandiella, Pseudamnicola, Pseudobithynia, Pyrgula, Sadleriana, Trichonia, Ventrosia) are discussed and illustrated based on the literature and, where necessary, on the presented additional data. These include shell macrocharacters, protoconch sculpture, soft part morphol- ogy and pigmentation, radulae, stomach, female reproductive organs, male reproductive organs. Based on partial sequences of the ribosomal 18S RNA gene, a molecular phylogeny is presented for all the genera, and based on fragments of CO1 gene in mitochondrial DNA, for all except six genera. Based on the Adams con- sensus tree the two gene phylogenies are summarised and systematics of the group is proposed. Adrioinsulana is considered a junior synonym of Pseudamnicola; Parabythinella a junior synonym of Marstoniopsis; a new name: Radomaniola n. gen. is proposed as a replacement name for the preoccupied