Gigantomilax (Monochroma) brunneus (Simroth, 1901)
Morphology:
External: Medium slugs; wrinkles flat, parallel to keel; pointed posterior edge of mantle; pneumostome postmedial on mantle (Schileyko 2003).
Internal: Large, conical flagellum on apex of penis; cylindrical or globular penis containing sphincter and longitudinal pilasters (Schileyko 2003).
Size:
To 70 mm long (Sysoev & Schileyko 2009); contracted to 50 mm long (Schileyko 2003).
Distribution:
Zangezur mountains (Likharev & Schileyko, MS; in Sysoev & Schileyko 2009).