M. pulchellus.
M. aciculatus.
M. crassispina. The thick-spined Murex. Pl. [26], fig. 3.
Species with tube very long and spiny.
M. adustus. The burnt Murex. Pl. [26], fig. 1.
Species with three ramified varices.
M. Haustellum. The Snipe Murex. Pl. [26], fig. 4.
Species with tube very long, and without spines.
M. acanthopterus. The prickly Murex.
Species with three varices on each whorl.