20. Opeas lamoense Melvill & Ponsonby, 1892

Buliminus lamoense Melvill and Ponsonby 1892: 90; pl. V, fig. 12

Notes.

Pemba specimens reach 11.0 × 4.0 mm, being relatively much broader and with a relatively larger body whorl than Allopeas gracile . At one high forest site (Ngezi N2) some individuals have much stronger ribs, although the shell shape is similar.