Snow Siren

A "Snow Siren" was a creature living in the mmountain of the planet Shingra. Similar to crabs, they hid under the snow and produced plaintive moans to attract voyagers in crevices.

Behind the scenes
The "Snow Siren" is a nickname given to a creature mentioned by Jean Balczesak for the ambiguously canon roleplaying scenario L'écume de l'espace which appeared in the French magazine Casus Belli 44.