Tropidophora nyasana (Smith, 1899)

Muratov, Igor V., 2010, Terrestrial molluscs of Cabo Delgado and adjacent inland areas of north-eastern Mozambique, African Invertebrates 51 (2), pp. 255-255 : 263

Tropidophora nyasana (Smith, 1899)

Fig. 5 Pomatias nyasanus: Smith 1899: 591 , pl. 35, fig. 5 (Mount Chiradzulu, Nyika Range, Zomba Plateau; 20× 21 mm). Recorded from two stations on Cabo Delgado; has a general distribution in Malawi (type localities), Mozambique and Zimbabwe. Differs from the other three species of Tropidophora in the region by the presence of numerous regularly spaced spiral cords over the entire shell surface.

Figures

Figs 3–14. Cyclophoridae: (3) Cyathopoma diegoense, 1.8×2.5 mm, stn 7. Maizaniidae: (4) Maizania wahlbergi, 11.5×15.2 mm, stn 3. Pomatiidae: (5) Tropidophora nyasana, 16.7×17.7 mm, stn 7; (6) T. ligata, 17.5×18.3 mm, stn 17; (7) T. insularis, 17.2×17.0 mm, stn 4; (8) T. zanguebarica, 11.0×10.8 mm, stn 9. Truncatellidae: (9) Truncatella marginata, 6.0×2.5 mm, stn 7. Pupillidae: (10) Pupoides coenopictus, 4.3×2.2 mm, stn 7. Gastrocoptidae: (11) Gastrocopta klunzingeri, 1.8×1.0 mm, stn 7. Vertiginidae (stn 7): (12) Nesopupa peilei, 1.7×1.0 mm; (13) Nesopupa corrugata, 2.0×1.0 mm; (14) Nesopupa bisulcata, 1.3×0.8 mm.Scale bar 1 mm in Figs 3, 10–14; 10 mm in Figs 4–8; 2 mm in Fig. 9.