The Adventure of the Speckled Band the snake wrong, a theory that the swamp adder was an artificial hybrid between the Mexican Gila monster ("Heloderma suspectum") and "Naja naja". His speculation suggests that Doyle might have hidden a double-meaning in Holmes' words. What Holmes said, reported by Watson, was "It is a swamp adder, the deadliest snake in India"; but Klauber suggested what Holmes really said was "It is a "samp-aderm", the deadliest skink in India." "Samp-aderm" can be translated "snake-Gila-monster": "Samp" is Hindi for snake, and the suffix "aderm" is derived from "heloderm", the common or vernacular name of the Gila monster generally used by
The Adventure of the Speckled Band European naturalists. Skinks are lizards of the family Scincidae, many of which are snake-like in form. Such a hybrid reptile will have a venom incomparably strengthened by hybridization, assuring the almost instant demise of the victim. And it will also have ears like any lizard, so it could hear the whistle, and legs and claws allowing it to run up and down the bell cord with a swift ease. Sir Arthur Conan Doyle himself wrote a stage play based on "The Speckled Band". In December 1909, Conan Doyle had leased the Adelphi Theatre in the Strand for a production of