Volume 55 no. 1

VOL. 55, NO. 1 MALACOLOGIA 2012 CONTENTS FULL PAPERS Ignacio Leyva-Valencia, Sergio Ticul Álvarez-Castañeda, Daniel B. Lluch-Cota, Sergio González-Peláez, Sergio Pérez-Valencia, Brent Vadopalas, Saul Ramírez-Pérez & Pedro Cruz-Hernández Shell shape differences between two Panopea species and phenotypic variation among P. globosa at different sites using two geometric morphometrics approaches …………………………………………………….1 Iga Lewin Occurrence of the invasive species Potamopyrgus antipodarum (Prosobranchia: Hydrobiidae) in mining subsidence reservoirs in Poland in relation to environmental factors …………………………………………….. 15 Nicolás E. Tamburi & Pablo R. Martín Effect of food availability on morphometric and somatic indices of the apple snail Pomacea canaliculata (Caenogastropoda, Ampullariidae)……………………………………………………………………………………. 33 Joshua P. Lord Longevity and growth rates of the gumboot chiton, Cryptochiton stelleri, and the black leather chiton, Katharina tunicate …………………………………………………………………………………………………………………… 43 Yuri I. Kantor & Nicolas Puillandre Evolution of the radular apparatus in Conoidea (Gastropoda: Neogastropoda) as inferred from a molecular Phylogeny …………………………………………………………………………………………………………… 55 Yen-Chen Lee, Kuang-Yang Lue & Wen-Lung Wu The phylogeny and morphological adaptations of Cyclotus taivanus ssp. (Gastropoda: Cyclophoridae) …91 Diego E. Gutiérrez Gregoric Anancylus rosanae (Gastropoda: Pulmonata), new genus and new species, from Iguazú National Park, Argentina ………………………………………………………………………………………………………………. 107 Ximena Maria Constanza Ovando & Diego E. Gutiérrez Gregoric Systematic revision of Chilina Gray (Gastropoda: Pulmonata) from northwestern Argentina and description of a new species ……………………………………………………………………………………………………… 117 Ekaterini Chalkia, George Kehayias & Evangelia Doulka Spatial and temporal variation of the freshwater mussel Dreissena blanci (Westerlund, 1890) larvae in Greek lakes …………………………………………………………………………………………………………………… 135 Jana Dvořáková & Michal Horsák Variation of snail assemblages in hay meadows: Disentangling the predictive power of abiotic environment and vegetation ……………………………………………………………………………………………………… 151 Florencia Arrighetti, Valeria Teso, Thomas Brey, Andreas Mackensen & Pablo E. Penchaszadeh Age and growth of Olivancillaria deshayesiana (Gastropoda: Olividae) in the southwestern Atlantic Ocean .163 RESEARCH NOTE Diego G. Zelaya & Cristián Ituarte Tellimya tehuelcha, new species: First record of Tellimya Brown, 1827, in South America (Bivalvia: Lasaeidae), with notes on life history and reproduction …………………………… 173 INDEX .......................................................................................................................... 183