The Caecidae from BIOMAGLO Expedition in the Mayotte-Glorieuses area (Mollusca, Gastropoda)

The Caecidae J. E. Gray, 1850 collected during the BIOMAGLO Expedition, carried out by the Muséum national d’Histoire naturelle, Paris, in the Mayotte-Glorieuses area in 2017 are revised. Despite the depth of the biotopes sampled, unsuitable for most members of this family, 320 specimens were collected, belonging to 11 species, two of which are new to science, Caecum biomaglo n. sp. and C. iricolor n. sp. All recorded species are illustrated, along with a further indeterminate specimen, possibly belonging to an undescribed species.