This is a vintage scientific illustration of a cephalopod, specifically *Histioteuthis Ruppellii*. The illustration is done in a detailed, watercolor-like style, typical of 19th-century natural history artwork. The cephalopod is depicted from a top-down view. It has a translucent, bell-shaped body with a reddish-orange hue. Numerous tentacles radiate outwards from the central body. These tentacles are long, slender, and a mix of reddish-orange and pink. They are adorned with rows of small, blue-green suckers. The illustration is set against a pale yellow background. Above the image, the title “CEPHALOPODES” and plate number “Pl. 21” are printed. Below the image, the species name “Histioteuthis Ruppellii” and the artist’s name “A. Remy” are written in elegant script. A small line of text at the very bottom indicates the source of the illustration: “V. Massy, dessin sur pierre et lith. A. Remy.” The overall impression is one of meticulous detail and scientific accuracy, characteristic of historical natural history illustrations. The artwork is framed by a thin, dark border.