Anatomical Description of Anctus angiostomus (Wagner, 1827) from Northeastern Bahia,Brazil (Gastropoda,Pulmonata, Bulimulidae)

Anctus angiostomus (Wagner, 1827) is herein described anatomically, based on material collected at Queimadas, BA, caatinga habitat. This species is characterized by closed primary and secondary ureters; salivary glands distant from the buccal bulb; a poorly developed stomac h; a characteristic mode of emergence of the gonad duct from the annexe glandular sac; very long spermoviduct; a short oviduct and vagina; very long and slender penis and epiphallus and a long flagellum with retractor muscle in the tip.