This is a species which is believed to feed mostly on marine molluscs including other cone snails.

The subspecies: Conus marmoreus bandanus Hwass in Bruguière, 1792 is a synonym of Conus bandanus Hwass in Bruguière, 1792 [3] This species occurs in the Indian Ocean off Chagos and Madagascar, in the Bay of Bengal off India; in the western part of the Pacific Ocean to Fiji and the Marshall Islands; off Australia (Northern Territory, Queensland, Western Australia).

The outer lip flares towards posterior.

In this species, the distinctive, reticulated colour pattern can range from black with white dots, to orange with white reticulations, so arranged as to expose the white in rounded triangular large spots.

[5][3] In 1650 Rembrandt portrayed this cone in an etching as "De schelp" ("The shell").