BioStor
 | XLV.—Notes on slugs, chiefly in the collection at the British Museum T D A Cockerell (1890) Annals And Magazine of Natural History 6: 380-390 |
 | On the Geographical Distribution of Slugs T D A Cockerell (1891) Proceedings of The Zoological Society of London 1891: 214-226 |
 | LVI.—Preliminary descriptions of new species of Madrepora in the collection of the British Museum.—Part II George Brook (1892) Annals And Magazine of Natural History 10: 451-465 |
 | LVII.—Description of new species of slug from South Africa Edgar A Smith (1892) Annals And Magazine of Natural History 10: 465-466 |
 | A revised reference list of South African Non-marine Mollusca; with descriptions of new species in the South African Museum M Connolly (1912) Cape Town Annals S African Museum 11: 59-306 |
 | Classification and Nomenclator of Gastropod Families Philippe Bouchet and Jean-Pierre Rocroi (2005) Malacologia 47(1-2): 1-397 |