It is not known whom the specific epithet lalandii commemorates, although it may the French naturalist and taxonomer Pierre Antoine Delalande.

[3] It is called crayfish (Afrikaans: kreef) and is often braaied, particularly in the coastal areas along its range, however overfishing has depleted stocks.

[5] Jasus lalandii is a generalist predator and scavenger of mussels, sea urchins, abalone, barnacles, among other thing.

[7] This indicates that overall J. lalandii optimizes the energetic returns from feeding while minimizing the risk involved.

[3] In order to prevent overfishing, individual fishing quotas are allocated by the Republic of South Africa to fishermen and companies, totalling 1,700 t.[8] There is also a closed season from 1 June to 15 November, a size limit of 80 mm (carapace length) and a ban on catching ovigerous females (females which are brooding their eggs).