Terrestrial molluscs of Cabo Delgado and adjacent inland areas of north-eastern Mozambique Author Muratov, Igor V. text African Invertebrates 2010 2010-12-31 51 2 255 255 http://www.bioone.org/doi/abs/10.5733/afin.051.0203 journal article 10.5733/afin.051.0203 2305-2562 7913493 Trochozonites ( Crenatinanina ) crenulata ( Germain, 1905 ) Figs 51 , 53–55 Trochonanina crenulata : Germain 1905: 484 (Environs de Zanzibar ; 11.0× 15.5 mm ). Trochonanina ( Crenatinanina ) crenulata : Germain 1920: 75 , pl. 4, figs 3–5 ( Zanzibar ; 10.0× 15.5 mm , erroneously said to be “grandeur naturelle” in figures captions). This appears to be a rediscovery of the species collected by Raffray in 1891 and not seen since 1920. The type , according to Germain in MNHN , could not be found there ( Rowson 2007: 451 ) . Figs 56–61. Pomatiidae : (56) Tropidophora ligata , shell 15.5×15.3 mm, stn 7; (57) T. zanguebarica , shell 10.0×9.5 mm, stn 7; Cerastidae : (58) Rhachistia catenata , shell 10.0×6.3 mm, subadult, stn 1; Achatinidae : (59) Achatina immaculata , shell 102×56 mm, stn 1; Subulinidae :(60) Kempioconcha boivini , shell 16.0×8.4 mm, stn 1; (61) K. conradti , shell 13.7×6.2 mm, stn 8. Embryonic whorls (destroyed in the type and thus not previously described) with weak close-set microscopic axial riblets cut by much finer spiral lines. All shells found at the three stations on Cabo Delgado are proportionally higher than the type , but some worn adult shells are up to 10.3× 15.2 mm , approaching the size and proportions of the type . The shell illustrated in Figs 53–55 is faded, smaller than the type but similar in shape .