An integrative study of the invasive jumping-snail Ovachlamys fulgens (Gastropoda, Helicarionidae) in Rio de Janeiro and its fast spreading in Southeastern and Southern Brazil

The Japanese invasive jumping snail Ovachlamys fulgens is a pest of ornamental plants and an intermediate host nematode that causes eosinophilic meningitis. We expand its distribution to eight municipalities from Rio de Janeiro State, one locality the Paraná generated for first time partial sequences cytochrome c oxidase subunit I (COI) gene Brazilian populations. External morphology, reproductive system, shell, radula, jaw were also analyzed described. Twenty-one lots collected Janeiro, Niterói, Magé, Miguel Pereira, Petrópolis, Teresópolis, Nova Friburgo, Bom Jardim Paraty, in Foz do Iguaçu, State. shell system typical O. fulgens, with some peculiarities found radula. A single haplotype was found, which 100% similar COI available GenBank specimens Japan Argentina. species seems be adapted many habitats rapidly expanding Southeastern Southern Brazil, other South America countries. highlight importance monitoring considering potential compete native mollusks, attack several plants, transmitter diseases.