Kype Kype A kype is a hook-like secondary sex characteristic which develops at the distal tip of the lower jaw in some male salmonids prior to the spawning season. The structure usually develops in the weeks prior to, and during, migration to the spawning grounds. In addition to the development of the kype, a large depression forms in the two halves of the premaxilla in the upper jaw, allowing the kype to fit into the premaxilla when the mouth is closed. The kype functions as a secondary sexual characteristic and influences the formation of dominance hierarchies at the spawning grounds. The
Third Battle of the Hook defeated in heavy fighting. Just 30 minutes into 29 May, the Chinese forces launched another attack, but they were again beaten back. The Dukes began advancing up the line of the original trenches to dislodge the remaining Chinese forces in the forward trenches. The 'Dukes' secured the Hook at 03:30. For their action they were awarded the Battle Honour "The Hook" Between 19 May and 29 May, Chinese artillery fired over 20,000 shells onto the Hook position, and 11,000 of these shells were fired on the night of 28 May, with over 200 heavy calibre shells hitting the Hook positions