False Water Cobra

Rear-fanged colubrid that hood-displays like a cobra. Bites are usually localized but can be medically significant.

GenusHydrodynastes

RegionSouth AmericaSouth America

Photo: Bernard DUPONT from FRANCE · Source: Wikimedia Commons · License: CC BY-SA 2.0

False Water Cobra

Photo: Bernard DUPONT from FRANCE · Source: Wikimedia Commons · License: CC BY-SA 2.0

False Water Cobra

Danger Score

Final Danger Score

Venom Core

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

0.55 × 23 + 0.45 × 715.8

Modifiers

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

× Speed (0.94)14.9

× Delivery (1.00)14.9

× Encounter (0.86)12.8

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

Score13

Type

CytotoxicDestroys cells and damages tissue; can cause permanent tissue damage and disfigurement.

Venom Yield

Low

Venom Speed

Slow

Delivery Method

Rear fangs

Potency (SC Equivalent)

4.200mg/kg LD50

Max Dry Yield

18mg dry

Fatality (Untreated)

0-1%

WHO Importance

Local Effects

Pain at bite site, Swelling

Blood

Internal bleeding

Causes of Death

Massive internal bleeding