« Colour variable, sometimes yellowish, bluish, sometimes adorned with little white markings on the bead that ends each whorl; the most usually of a brown olivaceous with longitudinal zig-zag flame-shaped aquamarina blotches. Dedicated to M. Laugier, lecturer at the Jardin du Roy. » – B. C. Payraudeau: Catalogue descriptif et méthodique des annelides et des mollusques de l’île de Corse, Paris 1826, via BHL.

« Shell similar to T. dubius and T. conulus, but smaller, generally darker in color, the apical whorls not (or but slightly) granulate. The form is straightly conical ; apical whorl minute, smooth ; following whorls, to the number of three or less, granulate ; then there are several spirally grooved whorls, the lower ones either smooth or grooved. The supra-sutural fasciole is distinct, articulated ; base spirally grooved, sometimes smooth except around the axis. Whorls about 8. Color: (1) dark olive-green or olive-brown, unicolored or longitudinally clouded with brown and lineolate with bluish, (2) yellowish, clouded with brown or yellow, (3) uniform purple. Aperture sulcate or smooth inside. » – H. A. Pilsbry: Manual of conchology, ser.1 vol. XI, Philadelphia 1889.