“Nervous system of the common cuttle-fish (Sepia officinalis)”
Explanation:
1 = “large bilobed ganglion” of the “supra-oesophagal ganglionic mass”
2 = lobes of the “optic ganglion”, connected to the “supra-oesophagal ganglionic mass”
4 = “sub-oesophagal ganglionic mass”
6 = large nerves “connected with the feet and tentacles” projecting from the anterior part of the “sub-oesophagal ganglionic mass”
7 = “pharyngeal ganglion”, connected to the “large bilobed ganglion” of the “supra-oesophagal ganglionic mass” (via 5?)
13, 14 = large nerves connected to the “branchiae and other viscera as well as to the mantle” going off the posterior part of the “sub-oesophagal ganglionic mass”
All other numbers and letters in the drawing are not explained in the accompanied text (pp. 34–36 in the source).
Date 1876
Source Nature of the Invertebrate Brain. The Popular Science Monthly 10:27–38 (fig. 13, p. 35)
Author Charlton Bastian
Source: https://commons.wikimedia.org/wiki/File:PSM_V10_D045_Nervous_system_of_the_cuttle_fish.jpg

The common cuttlefish or European common cuttlefish (Sepia officinalis) is one of the largest and best-known cuttlefish species. The common cuttlefish is native to at least the Mediterranean Sea, North Sea, and Baltic Sea, although subspecies have been proposed as far south as South Africa.