Kype and/or characteristics that could be of importance in inter- and intra-sexual evaluations of individual quality. The size of the kype is believed to determine male spawning frequency. The extinct sabertooth salmon, "Oncorhynchus rastrosus", was first named for its prominent premaxillary dentition. It possesses an enormous conical tooth on each premaxilla. There is no visible kype on the dentary, implying a different strategy for forming mate dominance. 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
Third Battle of the Hook the 1st Battalion the Duke of Wellington's Regiment (the "Dukes") were moved from its position on Yong Dong, to relieve the Black Watch, who had been defending The Hook. During this period, the Black Watch had suffered 12 soldiers killed, 73 wounded and 20 missing. Over the next two weeks The Dukes were under constant sniper, mortar and artillery fire. This was then followed up in a major action over the 28–29 May following heavy initial artillery and mortar fire, after which the Chinese infantry attacked in force. Between 19 May and 29 May 'The Dukes' suffered 15 killed in