*cavernarum (Carpenter, 1897) [not (Moniez, 1893)]
handschini Bagnall, 1941
*marteli (Carpenter, 1897)
*maritima Bagnall, 1941
Pseudosinella immaculata is the most common and widespread blind species of Pseudosinella. The small tooth on the inner edge of the claw of leg3 is positioned halfway between the tip and the base, and the two large teeth are both the same distance from the base (Fig. 1). Pseudosinella immaculata has been recorded from caves, and from leaf litter and soil in a number of localities (although not yet from Wales and central England). Included on the map are Bagnall records of the probable junior synonyms Pseudosinella boneti, Pseudosinella handschini, Pseudosinella maritima, and records of the definite junior synonyms Pseudosinella cavernarum and Pseudosinella marteli (both described by Carpenter, 1897). However, there may be other good species of Pseudosinella 'hiding' within the Pseudosinella immaculata 'group' and further taxonomic work is needed on freshly-collected specimens, particularly from caves.