In 'Muratov, I.V. 2010. Terrestrial molluscs of Cabo Delgado and adjacent inland areas of north-eastern Mozambique. African Invertebrates 51 (2): 255-288, it was discovered that one of the family names (Pomatiidae) in Table 2 on page 258 was misspelt as Pomatiasidae. The corrected version of the relevant page is published on p. 230 of this article. The author and editors apologize for this error.

The Caecidae found in shallow water sediment samples in Inhaca Island and Maputo Bay are described and illustrated. Three species are recorded: Caecum chinense, which is the most common; Caecum sepimentum, which was represented by a couple of specimens only; and Caecum inhacaense, a new species here described. The operculum of C. chinense is described and illustrated by SEM for the first time. The type specimens of the Indo-Pacific species Caecum amputatum Hedley, 1899, C. attenuatum Folin, 1879, C. berberense Ladd, 1972, C. chinense Folin, 1868, C. sepimentum Folin, 1868, C. maculatum Habe, 1963 and C. vertebrale Hedley, 1899 are illustrated. C. maculatum and C. berberense are newly synonymised under Caecum sepimentum.

Nineteen stations were surveyed and 46 species of terrestrial molluscs were recorded from an 18×55 km area in the north-eastern corner of Mozambique. Three stations on Cabo Delgado (a peninsula at the northern extremity of the Quirimbas Archipelago) yielded 19 species that were not found on the inlandsampled area and 18 species that occur inland were not found on Cabo Delgado, with nine species inhabiting both areas. The main ecological difference between Cabo Delgado and the inland area is the abundance of limestone in the former and the total lack of it in the latter. The reference to the original publication, type locality, size of the type specimen(s) and summary geographical distribution as well as colour photographs are provided for each recorded species. One new species of Gulella (Pulmonata: Streptaxidae) is described from Cabo Delgado.