Diplogastrellus Paramonov 1952

Genus Diplogastrellus Paramonov, 1952 Type species Diplogastrellus gracilis (Bütschli, 1876). Diagnosis Body medium-sized. Cuticle usually appearing smooth. Stoma longer than wide. Cheilostom as long as gymnostom, with six flaps. Gymnostom anisotopic, dorsal gymnostomal wall being much shorter than subventrals. Stegostom anisotopic and anisomorphic; dorsal wall with dorsal flap or tooth. Subventral walls with a tooth or teeth or simply a ridge. Pharynx well-developed, muscular metacorpal bulb with valve plates, rounded to ovoid basal bulb. Female reproductive system mono-prodelphic or amphidelphic. Uterus divided into well-developed glandular and muscular parts. Genital sensilla nine pairs. Bursa absent. Tail long, filiform.