Pliocene gastropod faunas from Kallo (Oost-Vlaanderen, Belgium) — Part 2. Caenogastropoda: Potamididae to Tornidae

Elements of the caenogastropod fauna from Pliocene strata exposed at Kallo, province of Oost-Vlaanderen (Belgium), are described and illustrated, and their stratigraphical and geographical occurrence discussed. Ten species not recorded previously from the Pliocene of Belgium are described, viz. Tenagodus obtusus (Schumacher, 1817) s. lat., Turritella (Haustator) vanderfeeni Brakman, 1937, Littorina (Melaraphe) gibbosa Etheridge & Bell, 1893, Onoba aff. millettii (Etheridge & Bell, 1893), Onoba semicostata (Montagu, 1803), Rissoa (Turboella) curticostata Wood, 1848, Obtusella intersecta (Wood, 1856), Skeneopsis planorbis (Fabricius, 1780), Caecum glabrum (Montagu, 1803) and Ceratia proxima (Forbes & Hanley, 1850). Alvania (A.) simonsi and Peringiella crassilabris are described as new. Another species previously unknown from the Belgian Pliocene, Alvania (A.) whitleyi (Bell, 1898), is recorded from Antwerp-Oorderen.