fer-de-lance


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Related to fer-de-lance: Bothrops

fer-de-lance

(fĕr'-də-lăns`), highly poisonous snake, Bothrops atrox, found in tropical South America and the West Indies. A pit viperpit viper,
poisonous snake of the family Crotalidae, primarily a New World family. Like the Old World true vipers (family Viperidae), pit vipers have long, hollow, erectile fangs that are folded back against the roof of the mouth except when the snake is striking.
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, related to the bushmaster and the rattlesnake, it has heat-sensitive organs on the head for detecting its warm-blooded prey. Usually about 5 to 6 ft (150–180 cm) long, the fer-de-lance may reach a maximum length of about 9 ft (3 m). It is gray or brown with light stripes and dark diamond markings and has a yellow throat. Common throughout most of its range, it causes many human fatalities. It is classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
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, subphylum Vertebrata, class Reptilia, order Squamata, family Crotalidae.