Papilloderma altonagai Wiktor, Martin, & Castillejo 1990
Morphology:
External: Spindle-shaped body; skin covered with pointed papillae; very small mantle through which shell protrudes; mantle on middle-anterior half of body; no divisions of sole (Schileyko 2003).
Internal: Flat, coiled internal shell; no jaw; long, twisted vas deferens joined slightly to the side of the penis apex; club-shaped penis containing a large verge with a coiled tip; long oviduct; very long spermatheca duct with a thick lower part; short atrium (Schileyko 2003). .
Size:
Preserved: to 27 mm long (Schileyko 2003). .
Distribution:
N Spain (Schileyko 2003).
Trophic strategy:
Probably carnivore (Barker & Efford 2004).