Posts tagged Hideyo Noguchi

Skulls of Naja tripudians (A, B, C) and Bungarus candidus (D, E)
The Bungarus candidus is commonly known as the Malayan krait, and the Naja tripudians (now Naja kaouthia) is the monocled cobra. Both have venoms with nearly 100% neurotoxic action and were used in Dr. Noguchi’s research to compare against the hemotoxic venoms of other snakes.
Snake Venoms: An Investigation of Venomous Snakes with Special Reference to the Phenomena of their Venoms. Dr. Hideyo Noguchi, 1909.

Skulls of Naja tripudians (A, B, C) and Bungarus candidus (D, E)

The Bungarus candidus is commonly known as the Malayan krait, and the Naja tripudians (now Naja kaouthia) is the monocled cobra. Both have venoms with nearly 100% neurotoxic action and were used in Dr. Noguchi’s research to compare against the hemotoxic venoms of other snakes.

Snake Venoms: An Investigation of Venomous Snakes with Special Reference to the Phenomena of their Venoms. Dr. Hideyo Noguchi, 1909.

 
Musculature of the venom apparatus.
Most venomous snakes can change the muscle tension around their venom sacs when they strike. This regulates how much (and if) venom is injected into the victim. In some species, almost 60% of bites are “dry” - not injecting any venom.
Snake Venoms: An Investigation of Venomous Snakes, with Special Reference to the Phenomena of Their Venoms. By Hideyo Noguchi M. D., 1909.

Musculature of the venom apparatus.

Most venomous snakes can change the muscle tension around their venom sacs when they strike. This regulates how much (and if) venom is injected into the victim. In some species, almost 60% of bites are “dry” - not injecting any venom.

Snake Venoms: An Investigation of Venomous Snakes, with Special Reference to the Phenomena of Their Venoms. By Hideyo Noguchi M. D., 1909.

Coral Snakes vs. the King Snake
King snakes (and milk snakes) look much like the highly venomous coral snake, and many species avoid them because of this. This is an excellent example of Batesian Mimicry.
Snake Venoms: An Investigation of Venomous Snakes, with Special Reference to the Phenomena of Their Venoms. By Hideyo Noguchi M. D., 1909.

Coral Snakes vs. the King Snake

King snakes (and milk snakes) look much like the highly venomous coral snake, and many species avoid them because of this. This is an excellent example of Batesian Mimicry.

Snake Venoms: An Investigation of Venomous Snakes, with Special Reference to the Phenomena of Their Venoms. By Hideyo Noguchi M. D., 1909.

The action of venom on the internal organs.
Snake Venoms: with special reference to the phenomena of their venoms. Hideyo Noguchi, 1903.

The action of venom on the internal organs.

Snake Venoms: with special reference to the phenomena of their venoms. Hideyo Noguchi, 1903.