Portuguese man o' war (*Physalia physalis*) Original hand-colored engraving by Prêtre (c.1835)

Scientific engraving of Cassiopea, Melicerta and Obelia jellyfish from the Dizionario di Scienze Naturali.

Delicate blue-toned depiction of Eudora ondulosa from three perspectives. 

Antique engraving of a delicate feather star, vividly colored and highly detailed.

Trio of rare jellyfish types in soft tones, hand-colored lithograph by Prêtre. 

Hand-colored engraving of the moon jellyfish Aurelia labiata, drawn by Prêtre for a 19th-century zoological publication. 

Three jellyfish species illustrated in fine hand-colored lithography by Prêtre. 

Rare 19th-century print of the feather star Comatula of the Adeona, with anatomical details. 

Elegant antique depiction of a crinoid with anatomical studies and fine detailing. 

Original antique illustration of the anatomy of a starfish (Asterias), upper and lower view. 

Antique print of Ophiura annulosa (brittle star) with anatomical details from a 19th-century zoological dictionary. 

Antique illustration of the jellyfish Porpita capelluta and Porpita glandifera, from the Dizionario di Scienze Naturali. 

Hand-colored engraving of Aurelia crenulata, with detailed anatomical illustrations. 

A rich hand-colored engraving of the Banks squid.