title: Karyological studies of Biomphalaria tenagophila (d'Orbigny, 1835) (Gastropoda: Planobidae) from Rio de Janeiro, Brazil.
abstract: The karyotypes of Biomphalaria tenagophila collected from Rio de Janeiro, Brazil were studied using the air-drying method. Somatic cells of this species had 2n=36. The 18 chromosome pairs were identified and classified into 3 groups. The diploid cell has 7 pairs of metacentric, 8 pairs of submetacentric, and 3 pairs of subtelocentric chromosomes. Observed chromosomes ranged from 2.4 to 6.4 µm, and the total length was 122.3 µm. This is the first report on the chromosome of B. tenagophila.
authors.affiliation: Department of Environmental Medical Biology, Kwandong University College of Medicine, Gangneung 210-701, Korea.
authors.forename: Gab Man
authors.initials: GM
authors.lastname: Park
authors.affiliation: Department of Environmental Medical Biology and Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 120-752, Korea.
authors.forename: Tai-Soon
authors.initials: TS
authors.lastname: Yong
mesh_terms: D000818:Animals; D001700:Biomphalaria / Q000166:cytology* / Q000235:genetics*; D001938:Brazil; D059785:Karyotype
keywords: Biomphalaria tenagophila; Brazil; freshwater snail; karyotype