đŠ Die Cephalopoden der Plankton-Expedition Kiel: Lipsius & Tischer, 1912. Original source Image description: Historical scientific illustration showing a detailed squid with a prominent, rounded mantle and multiple long arms extending upward, some with visible suction cups. Surrounding the main squid figure are close-up drawings of individual tentacle segments, suction cup rows, and the squidâs head and eye in detailed view. The delicate shading highlights texture and anatomy typical of early 20th-century marine biology studies. The image emphasizes the squidâs arm structure and suction cups, providing insight into cephalopod morphology from the 1912 Plankton Expedition publication.















