Caecilian Weight Ranges by Species

Species‑Specific Weight Variation

Caecilian body mass varies dramatically across species:

• Small species (e.g., Siphonops annulatus, Brazilian caecilian): a few grams
• Large species (e.g., Caecilia thompsoni, giant caecilian): up to 1.5 kg (3.3 lbs)

Weight correlates with length, habitat, and ecological niche. Accurate species identification is essential for meaningful weight assessment.