Eumilax O. Boettger, 1881
Eumilax represents two species with variable coloration (Schileyko 2003).
External: Medium to large slugs; keel on entire dorsum; mantle more than 1/2 dorsum length; small tubercles all over upper body; pneumostome antemedial on mantle (Schileyko 2003).
Internal: No intestinal caecum; short, thin vas deferens; penis with apical short, rounded flagellum containing 2 pilasters fused at its base; very short penis; very long, curved appendix on penis; many oblique longitudinal ridges inside penis; retractor muscle attached to penis apex; long oviduct; very short vagina; spermatheca with very short duct (Schileyko 2003).
To 150 mm long contracted (Schileyko 2003).
Greater Caucasus, W Transcaucasia, Black Sea coast of Asia Minor (Schileyko 2003).