Viperidae Oppel, 1811
Porthidium dunni Hartweg & Oliver, 1938
Porthidium hespere Campbell, 1976
Porthidium lansbergii Schlegel, 1841
Porthidium nasutum Bocourt, 1868
Porthidium ophryomegas Bocourt, 1868
Porthidium porrasi Lamar, 2003
Porthidium volcanicum Solorzano, 1995
Porthidium yucatanicum Smith, 1941