Scomber scombrus, Caranx trachurus

Title: Brehms Thierleben : Allgemeine Kunde des Thierreichs
Year: 1876 (1870s)
Authors: Brehm, A. E. (Alfred Edmund Brehm), 1829-1884; Dr. Eduard Oskar Schmidt, 1823-1886; Ernst Ludwig Taschenberg, 1818-1898
Subjects: Animal behavior; Zoology
Source book page: https://archive.org/stream/brehmsthierleben08brehuoft/#page/n122/mode/1up
Source: https://commons.wikimedia.org/wiki/File:Brehms_Thierleben_-_Allgemeine_Kunde_des_Thierreichs_(1876)_(20412469115).jpg

Scomber scombrus = Atlantic mackerel (Scomber scombrus)
The Atlantic mackerel (Scomber scombrus) is a pelagic schooling species of mackerel found in the Mediterranean Sea, the Black Sea, and the north Atlantic Ocean. Scomber scombrus is also known as Boston mackerel, Norwegian mackerel, Scottish mackerel or just mackerel.

Caranx trachurus = Atlantic horse mackerel (Trachurus trachurus)
The Atlantic horse mackerel (Trachurus trachurus) is a species of jack mackerel in the family Carangidae. It gets its common name from the legend that other smaller species of fish could ride on its back over great distances. Other common names include European horse mackerel (in the U.S.), common scad, scad, and saurel.