Deroceras (Deroceras) koschanum (Simroth, 1904)
Biology:
Only one specimen known (Wiktor 2000).
Morphology:
External: Yellow-gray body; dark spotting (Wiktor 2000).
Internal: Long, tubular penis without a penis gland; possible appendix connected at its middle; longitudinal fold in apex of penis; conical stimulator in penis base; no rectal caecum (Wiktor 2000).
Size:
35 mm long, mantle 13 mm long (Wiktor 2000).
Distribution:
Type Locality: Ethiopia, S Kaffa Province ("Süd-Kaffa") (Wiktor 2000).