Triboniophorus is a genus of air-breathing land slug

Slug

Slug is a common name that is normally applied to any gastropod mollusc that lacks a shell, has a very reduced shell, or has a small internal shell...

s, terrestrial

Terrestrial animal

Terrestrial animals are animals that live predominantly or entirely on land , as compared with aquatic animals, which live predominantly or entirely in the water , or amphibians, which rely on a combination of aquatic and terrestrial habitats...

 pulmonate gastropod mollusks in the family Athoracophoridae

Athoracophoridae

Athoracophoridae, common name the leaf-veined slugs, are a family of air-breathing land slugs, terrestrial pulmonate gastropod mollusks in the infraorder Stylommatophora, the stalk-eyed snails and slugs...

, the leaf-veined slugs.

Species

Species within this genus include:

• Triboniophorus graeffei Humbert, 1863 - the red triangle slug
  Red triangle slug
  The red triangle slug, scientific name Triboniophorus graeffei, is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Athoracophoridae, the leaf-veined slugs....
  
   - type species
• incertae sedis Triboniophorus brisbanensis Pfeiffer
  Ludwig Karl Georg Pfeiffer
  Ludwig Karl Georg Pfeiffer, also known as Louis Pfeiffer was a German physician, botanist and conchologist.-Biography:He received his education in Kassel, and became professor of pathology there in 1828...
  
  , 1900 (anatomy at page 316.)

Description

These slugs have two, not four, tentacles, and like other leaf-vein slugs they have an indented pattern on their dorsum which resembles that of a leaf.