Reproductive system of Limax cinereoniger:
pr - penial retractor muscle;
pe - penis;
at - atrium;
bc - bursa copulatrix;
ov - oviduct.
White stripe under foot
Description
Juvenile ash-gray slugs are toffee brown. Adults are variable in color, including jet black, dark gray, pale gray and medium brown. A white to pale tan stripe runs along the long, prominent keel, and the foot sole of adults is pale in the middle with dark edges, wheres in juveniles it is all white. The tentacles are dark with black or brown spots.[7] This species can reach over 30cm,[8] though most adults are between 10 and 20cm.[3][9][10]
Ecology
This species lives in ancient woodlands and occasionally parks, under dead leaves and logs. It feeds primarily on mushrooms and algae and is not considered a pest.
↑Morand S. & Hommay G. (1990). "Redescription de Agfa flexilis (Nematoda: Agfidae) parasite de I'appareil genital de Limax cinereoniger (Gastropoda: Limacidae)". Systematic Parasitology15(2): 127–132. doi:10.1007/bf00009990.