Figs 13–22. Streptaxidae: (13) Gonaxis camerunensis, H 9 mm; (14) Ptychotrema okei, H 9.9 mm; (15) Ptychotrema sp., H 9.8 mm; (16) Ptychotrema shagamuense, H 15.8 mm; (17) Gulella monodon, H 6.48 mm; (18) Gulella reesi, H 5.92 mm; (19) Gulella io, H 3.64 mm; (20) Gulella jongkindi, H 4.08 mm; (21) Gulella cf. opoboensis, H 3.24 mm; (22) Tomostele musaecola, H 3.84 mm. Scale bars = 5 mm (Figs 13–16) and 1 mm (Figs 17–22).

Published as part of Oke, Christopher Omamoke, 2013, Terrestrial mollusc species richness and diversity in Omo Forest Reserve, Ogun State, Nigeria, pp. 93 in African Invertebrates 54 (1) on page 98, DOI: 10.5733/afin.054.0106, http://zenodo.org/record/7670329