Bielzia

[3][5] There is also a separate subfamily, Bielziinae, for genus Bielzia (I. M. Likharev & Wiktor, 1980).

According to the taxonomy of Bouchet & Rocroi (2005), Limacopsidae and Bielziinae are synonyms for Limacinae.

[6] This species is endemic to the Carpathian Mountains in Central and Eastern Europe.

[11] It is evenly blue or bluish green (occasionally black) with a dark greyish head and tentacles, and margins pale yellowish, sole pale yellowish or whitish.

[11] Bielzia coerulans inhabits deciduous and coniferous forests in mountains, usually at the bottom, or under dead wood logs.

Bielzia coerulans
Adults of Bielzia coerulans are blue
Juveniles of Bielzia coerulans are brown