by William Swainson, Zoological Illustrations Series II… (1829)
“ Spiral whorls regularly and gradually diminishing towards the apex, which is always acute. Plaits of the pillar numerous, always indistinct, generally evanescent, and sometimes wanting. Nobis. Type, Voluta musicalis? Lam. Specific Character. Shell nearly fuciform, the base narrow and smooth; the upper part with longitudinal, subcostated, spinous plaits: inner lip thickened, the last plait on the pillar very thick, and separated from the others, which are slender, and nearly obsolete, by a deep groove.Voluta Muricina. Lam. Syst. 7, 1, 350. Ency. Meth. pl. 383. f. 1. ”
