« Diagnostic features of L. erronea with all other Leufroyia spp. are the suboval profile, the wide aperture, the very short siphonal canal and the stronger and less spaced spiral cords. It differs from L. concinna also in the lack of brown coloured cords and pinkish / purple areas, and in its larger protoconch. From L. leufroyi it differs in the lack of dark brown or blackish blotches and in its larger protoconch, which is never very dark or blackish. L. villaria has a more slender shell, more stepped whorls and thinner spiral cords. » – Giannuzzi Savelli & al.: “Revision of Mediterranean and NE Atlantic Raphitomidae (Gastropoda, Conoidea) 8: The genus Leufroyia Monterosato, 1884”, Zoosystema vol. 42(22), Paris 2020, p.458.
Above and below: 80m deep, Lastovo Island, Dubrovnik-Neretva Comitat, S. Croatia. 14,1mm. Original pictures provided by R. Stanić (HR) – (CC BY-NC-SA).
« Background colour variable but usually light, from whitish to light brown or reddish-brown, rarely dark brown, with areas or blotches of different colour, rarely uniformly coloured. One cord lighter than background, usually white-whitish, above suture, at approximately ⅓ to ½ of whorl height, the area above the cord often darker than the rest. Darker blotches and areas irregularly placed on axial ribs and interspaces on upper part of each whorl, sometimes below periphery. Cords on siphonal fasciole always same light colour as background, occasionally with some pale brownish lines in the interspaces. Aperture internally white or beige, often with some light brownish blotches visible by transparency. » – Ibid.