One of the fictional accounts of July's birth in The Long Song (historical novel, set in 1830s Jamaica, when slavery was coming to an end), describes a 'tiger', without the usual appearance belonging to that of a tiger:
While a further version had a tiger, with its long, spiky snout and six legs, sniffing at the baby July, thinking her as food. - Ch. 2
The novel uses some Jamaican patois; however, I cannot find any alternative meanings of 'tiger'. What (mythical?) animal is this describing?