Yellow-bellied Sea Snake

Most famous pelagic sea snake, globally distributed in warm oceans.

GenusHydrophis

Photo: Calistemon · Source: Wikimedia Commons · License: CC BY-SA 4.0

Photo: Calistemon · Source: Wikimedia Commons · License: CC BY-SA 4.0

Yellow-bellied Sea Snake

Danger Score

Final Danger Score

Venom Core

Lethality weighted 55% (potency × yield). Clinical weighted 45% (real-world CFR).

0.55 × 47 + 0.45 × 6756.0

Modifiers

Multiplicative scalers - amplify or reduce existing danger, can't create it from nothing.

× Speed (1.01)56.6

× Delivery (1.00)56.6

× Encounter (0.74)41.9

Speed = antivenom window. Delivery = fang efficiency. Encounter = exposure × temperament.

Score42

Type

NeurotoxicAffects the nervous system; disrupts nerve-muscle communication and can cause paralysis or respiratory failure.

Venom Yield

Very Low

Venom Speed

Quick

Delivery Method

Fixed front fangs

Potency (SC Equivalent)

0.067mg/kg LD50

Max Dry Yield

2mg dry

Fatality (Untreated)

10-25%

WHO Importance

Cat. 2

Local Effects

Pain at bite site

Neurological

Paralysis

Gastrointestinal

Nausea or vomiting

Causes of Death

Respiratory failure