The mystery of the whale stranded near Liscannor, Co Clare, last month has been solved.
Images sent to the Irish Whale and Dolphin Group confirm it to be a long-finned pilot whale.
The initial description of the stranded cetacean said it had "a spiral tusk, about the length of a hurley, protruding from its head".
This had led to speculation that the mammal may have been a narwhal - a species which has never been recorded in Irish waters.
The IWDG says it was "always sceptical that the whale was a narwhal".
It also says Clare County Council received unfair criticism for removing the carcass of the animal before reporting it to the IWDG.
The IWDG says this is the fourth pilot whale reported stranded in Co Clare during 2012 and the 16th on all coasts.