Milax barypus Bourguignat, 1866
External: Stout body that is "domed" in profile; mantle >1/3 body length; preserved: ochre or yellow body color with dark pattern; darker back and mantle around the horseshoe-shaped groove; light keel (Wiktor 1987).
Internal: long, thin vas deferens; club-shaped epiphallus bent in an L-shape; papilla inside base of penis; spermatheca with wide duct undifferentiated from spermatheca itself; oviduct and vagina of similar width; side pocket in atrium that connects to accessory gland duct; single duct of accessory gland on atrium is much longer than gland; claw-shaped stimulator in atrium pocket (Wiktor 1987).
50 mm long alive (Heller 2009); preserved: 16 mm long, 4.5 mm wide, mantle 5.75 mm long (Wiktor 1987).
Mediterranean parts of Israel (Heller 2009), Cyprus (Wiktor 1987).