Different Kinds of Slugs in Pictures

The Slugs described on this homepage.

Keel Back Slugs (Limacidae): Chapter Page.
 

a1: Leopard slug (Limax maximus).
  Limax cinereoniger
a2: Black keel back slug (Limax cinereoniger).
 
a3: Tree keel back slug (Lehmannia marginata). [RN]
         

a4: Three band garden slug (Lehmannia valentiana).
 
a5: Yellow slug (Limacus flavus).
 
a6: Irish yellow slug (Limacus maculatus).
         
Round Back Slugs (Arionidae): Chapter Page.
 

b1: Giant red slug or Chocolate slug (Arion rufus).
 
b2: Giant black slug (Arion ater).
 
b3: Lusitanian slug (Arion vulgaris).
         

b4: Dusky arion (Arion subfuscus).
 
b5: Forest arion or silver slug (Arion silvaticus).
 
b6: Brown-banded arion (Arion circumscriptus).
         

b7: Hedgehog arion (Arion intermedius).
 
b8: Alpine arion (Arion obesoductus ?).
 
b9: Dark face arion (Arion distinctus).
         

b10: Garden slug (Arion hortensis).
       
         

Pictures: 1, 2, 3; b3, b4, b5: Robert Nordsieck; 4: Kristiina Ovaska; 5: Walter Wimmer; 6, b9, b10: Brian Eversham. b1: Hans Hillewaert; b2 Francisco Welter-Schultes; b6: William Leonard; b7: Adolfo Outeiro; b8: Michal Maňas;