Lymnaea columella: two new Brazilian localities in the states of Amazonas and Bahia

Abstract

The occurrence of Lymnaea columella is recorded in Tefé, Amazonas state, where it was found together with Drepanotrema anatinum, Physa marmorata and pomacea sp. L. columella was also collected in Salvador, Bahia state, at the dique do Tororó, an urban lake formely mentioned (as "lac Baril") by Moricand (1853) as a breeding-place of Biomphalaria glabrata, Drepanotrema cimex, D. depressissimum, Pomacea lineata, P. decussata and Ancylus moricandi. The four first-mentioned species, as well as physa cubensis and Hemisinus brasiliensis, were also collected now. This is the first record of a lymnaeid in the Northeastern region of Brazil.<br>É registrada a ocorrência de Lymnaea columella em Tefé, Estado do Amazonas, onde foi encontrada juntamente com Physa marmorata e Pomacea sp. L. columella foi também coletada em Salvador, Estado da Bahia, no Dique do Tororó, lago urbano antes mencionado por Moricand (1853) como criadouro de Biomphalaria glabrata, Drepanotrema cimex, D. depressissimum, Pomacea lineata, P. decussata e Ancylus moricandi. As quatro primeiras espécies mencionadas, assim como Physa cubensis e Hemisinus brasiliensis, também foram agora coletadas. Este é o primeiro registro de um limneídeo na região Nordeste do Brasi

Anatomical studies of sibling species within neotropical lymnaeids, snail intermediate hosts of fascioliasis

“…However, only six species are considered as valid by Hubendick (1951) and Paraense (1976Paraense ( , 1982aParaense ( , 1983Paraense ( , 1984Paraense ( , 1986Paraense ( , 1994Paraense ( , 1995: Paraense, 1982 and L. columella Say, 1817. This last species has now a very large distribution in all tropical countries particularly in the neotropical area (see Malek & Chrosciechowski 1964, Paraense 1982b, Gomez et al 1986).…”

“…This last species has now a very large distribution in all tropical countries particularly in the neotropical area (see Malek & Chrosciechowski 1964, Paraense 1982b, Gomez et al 1986). Two other species may be added to that list (i) L. truncatula (Müller, 1774) from Europe which recently invaded several Andean countries (Oviedo et al 1995, Jabbour-Zahab et al 1997, Durand et al 2002; (ii) L. plicata Hylton-Scott, 1953 from Chubut Province, Argentina which validity has not yet been confirmed.The morphology of the shell and reproductive system of five of those species has been well studied and allows a clear identification (Paraense 1982a, 1984, 1986, 1995, Samadi et al 2000, Pointier et al 2004 Moreover, an analysis of the genetic variability based on 12 enzyme loci revealed different fixed alleles at nine loci between two syntopic samples of L. viatrix var. elongata at the type locality in Lima, Peru (Durand et al 2002).…”

Aspects of the Maintenance of the Life Cycle of Fasciola hepatica in Lymnaea columella in Minas Gerais, Brazil

“…There are more than 20 species in the genus, many of which transmit F. hepatica and F. gigantica (Rey 1991). The geographical distribution of lymnaeid snails in Brazil is very wide, these mollusks are found in the states of Rio Grande do Sul, Santa Catarina, Paraná, São Paulo, Rio de Janeiro, Minas Gerais, Goiás, Distrito Federal, Mato Grosso, Mato Grosso do Sul, Amazonas and Bahia (Paraense 1982a(Paraense , b, 1983(Paraense , 1986. Among the species that transmit F. hepatica in Minas Gerais is L. columella (Say, 1817), which occurs throughout the state (Souza et al 1998).…”

Detection of Lymnaea columella infection by Fasciola hepatica through Multiplex-PCR

“…Prepelitchi et al (2003) reported the first evidence of natural infection of L. columella with F. hepatica in Argentina. In Brazil, the geographical distribution of L. columella is quite broad and it has been reported to be present in the following states: Rio Grande do Sul, Santa Catarina, Paraná, São Paulo, Rio de Janeiro, Minas Gerais, Goiás, Distrito Federal, Mato Grosso, Mato Grosso do Sul, Amazonas, and Bahia (Paraense 1982a(Paraense , b, 1983(Paraense , 1986. In Minas Gerais, in the municipality of Itajubá, Silva et al (1995) remarked the first finding of L. columella naturally infected by F. hepatica.…”