桶短沟蜷，软体动物门-腹足纲-中腹足目-肋蜷螺科。维基百科Semisulcospira is a genus of freshwater snails with an operculum, an aquatic gastropod mollusks in the family Semisulcospiridae.Species in the genus Semisulcospira are viviparous.[2]Species[edit]Species withn the genus Semisulcospira include:Semisulcospira forticosta (Martens, 1886)[2]Semisulcospira gottschei (Martens, 1886)[2]Semisulcospira kurodai Kajiyama & Habe, 1961[2]Semisulcospira libertina (Gould, 1859)[2]Semisulcospira tegulata (Martens, 1894)[2] Pleuroceridae