Porthidium lansbergii hutmanni is a subspecies of Lansberg's hog-nosed pitvipers endemic to Isla Margarita, Venezuela. The subspecies is named after Adolf Houtmann, spelt all three of hutmanni, houtmanni and hautmanni in the original paper.
Porthidium lansbergii hutmanni is one of the smallest venomous snakes in the world. It is found in the semi-arid forests of Isla Margarita.
The venom from Porthidium lansbergii hutmanni is known to cause bleeding, edema, blistering, necrosis and damage to the lymphatic system and extracellular matrix. However, it is treatable with antivenom.
Like all Porthidium lansbergii, P. l. hutmanni is ovoviviparous.