1. Catalogue of Linnaean type-specimens of snakes in The Royal Museum in Stockholm;Andersson;Bihang till Kongliga Svenska Vetenskaps-Akademiens Handlingar, Stockholm, 24, Afd.,1889
2. Catalogue of Linnaean type-specimens of Linnaeus's reptilia in The Royal Museum in Stockholm;Andersson;Bihang till Kongliga Svenska Vetenskaps-Akademiens Handlingar, Stockholm. 26, Afd.,1900