Skip to main content

Table 3 Taxonomic distributions and estimates of venomous vertebrate diversity.

From: Diversity, phylogenetic distribution, and origins of venomous catfishes

Taxon # Presumed Venomous
Actinopterygii - Ray-finned fishes ≈1835 - 2275 species
   Siluriformes - Catfishes ≈1250-1625 species
   Acanthomorpha - Spiny-rayed fishes ≈585-650 species
Chondrichthyes - Cartilaginous fishes ≈200 species
Sarcopterygii - Lobe-finned fishes and tetrapods ≈685+ species
  1. Estimates for acanthomorphs, chondrichthyans, and mammals are from [18]. Estimates for venomous snakes and lizards are from [[32] and [34]].