NNotes échinologiquesNotes échinologiquesde R. KœhlerEdiciones (1)Notes échinologiques (1895)francésMás obras de R. KœhlerAAccount of the littoral Holothurioidea collected by the RoyaAccount of the littoral Holothurioidea collected by the Royal Indian Marine Survey ship Investigator1908AAn account of the deep-sea ophiuroideaAn account of the deep-sea ophiuroidea1899AAstéries du Musée de Calcutta
AAccount of the littoral Holothurioidea collected by the RoyaAccount of the littoral Holothurioidea collected by the Royal Indian Marine Survey ship Investigator1908
CContributions to the biology of the Philippine Archipelago aContributions to the biology of the Philippine Archipelago and adjacent regions1922
.... A contribution to the study of ophiurans of the United S... A contribution to the study of ophiurans of the United States national museum1914
EEchinides et Ophiures provenant des campagnes du yacht l'HirEchinides et Ophiures provenant des campagnes du yacht l'Hirondelle (Golfe de Gascogne, Açores, Terre-Neuve)1898