Key Identification Features
- Red triangle slugs, the species Triboniophorus graeffei Humbert, 1863, are easily recognized by having only two tentacles, unlike the four tentacles seen in many other slug species.
- Like other leaf-vein slugs, they carry a distinctive indented pattern on their back that looks similar to leaf veins.
- Scientists are still investigating whether some of the observed distinct color forms might actually belong to separate species or subspecies.
For instant identification in the field, use the iNature app ā AI-powered, works offline.
