Fig. 286. Murex haustellum (Linnæus).
Fig. 287. Murex scorpio (Linnæus).
Fig. 288. Murex erinaceus (Linnæus).
The head of the animal is furnished with two horns or tentacles, ocular upon their external side, the mouth elongated in the form of a trunk. The foot is large and round, and furnished with a horny operculum.
Among the species with long slender tube, covered with spines, one of the most notable is Murex tenuispina (Fig. 285), which is a native of the Indian Ocean and the Moluccas.
Among the strong-tubed species with long canal and no spines, from the same regions, is Murex haustellum (Fig. 286).
Among the short-tubed species, furnished with foliaceous and jagged fringes, is Murex scorpio (Fig. 287).