Beiträge zur Kenntnis der Meeresfauna Westafrikas - Michaelsen, W. (Wilhelm), 1860 -1937 (Friedericksen, 1914)

Bulletin du Muséum national d'histoire naturelle - Muséum national d'histoire naturelle (France) (Imprimerie nationale, 1963)

Catalogue of recent ophiurans : based on the collection of the Museum of Comparative Zoölogy / by Hubert Lyman Clark ; with twenty plates - Clark, Hubert Lyman, 1870 -1947 (Printed for the Museum, 1915)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1912)