The Medusae of the world: Text. I-II The Hydromedusae; III. The Scyphomedusae
Mayer, A.G. (1977). The Medusae of the world: Text. I-II The Hydromedusae; III. The Scyphomedusae. Facsimile (Orig. 1910). A. Asher: Amsterdam. ISBN 90-6123-264-1. 735 pp.
Mayer, A.G. (1977). The Medusae of the world: Plates. I-II The Hydromedusae; III. The Scyphomedusae. Facsimile (Orig. 1910). A. Asher: Amsterdam. ISBN 90-6123-266-X. 76 plates pp., more