Learn how to say Murexan correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word murex:
noun (plural murices /-rɪsiːz/ or murexes)
a predatory tropical marine mollusc, the shell of which bears spines and forms a long, narrow canal extending downwards from the aperture.
Genus Murex, family Muricidae, class Gastropoda
late 16th century: from Latin; perhaps related to Greek muax ‘sea mussel’