Gazelle : The Palestinian Biological Bulletin (ISSN 0178 – 6288) . Number 126, June 2015, pp. 1-16. | Page 10

10              Monacha syriaca (Ehrenberg, 1831) - native Trochoidea pseudojacosta (Forcart, 1976) Trochoidea picardi (F. Haas, 1933) - at the edge of extinction Trochoidea davidiana davidiana (Bourguignat, 1863) - subgenus Xerocrassa Trochoidea erkelii helleri (Forcart, 1976) - subgenus Xerocrassa Trochoidea simulata (Ehrenberg, 1831) - subgenus Xerocrassa