Acanthogonatus nahuelbuta is a mygalomorph spider of Chile, named after its type locality: Piedra del Águila, Parque Nacional Nahuel-Buta, Malleco.
Acanthogonatus patagallina is a mygalomorph spider of Chile, named after its type locality: Pata de Gallina, Arauco, Region VIII (Bío Bío Region).
Hadronyche formidabilis, the northern tree funnel-web spider, is a venomous mygalomorph spider found in Queensland and New South Wales.
Hadronyche infensa, the Darling Downs funnel-web spider, is a poisonous mygalomorph spider, one of a number of Australian funnel-web spiders found in Queensland and New South Wales.
Hadronyche macquariensis, the Port Macquarie funnel-web spider, is a venomous mygalomorph spider, one of a number of Australian funnel-web spiders found in New South Wales.
Hadronyche versuta, the Blue Mountains funnel-web spider, is a venomous mygalomorph spider found in central New South Wales.
An example can be seen in the mygalomorph spider Idiosoma nigrum (Black Rugose Trapdoor Spider), which protects itself in its burrow by positioning itself so as to block the burrow with its abdomen, which is unusually hard.