AnimalsReptilesSnakesTop 10Venomous snakes

The largest venomous snakes TOP 50

The longest venomous snakes TOP 50

Snake venoms (snake toxins, also ophiotoxins) are the physiologically active components of the venomous snakes’ venomous apparatus. They are mainly used for prey hunting and digestion, as well as for defense against attackers. There is no reliable information on the number of deaths caused by venomous snakes worldwide each year, an estimate from 2008 states 21,000 to 94,000 deaths per year.

Systematic research and analysis of snake venoms have been going on since the 1960s. About a quarter of the approximately 3,900 known species of snakes are venomous snakes.

The subfamily Boiginae comprises by far the largest group, followed by:

  • Elapidae family (commonly known as elapids) – 55 genera with some 360 species and over 170 subspecies
  • Hydrophiinae – sea snakes and many genera of venomous land snakes found in Australasia, such as taipans (Oxyuranus)
  • tiger snakes (Notechis)
  • brown snakes (Pseudonaja) and death adders (Acanthophis)
  • Viperidae (vipers) and Crotalinae (pit vipers)
Inland taipan (Oxyuranus microlepidotus)

 

Median lethal dose LD50

The effect of venom is generally assessed using the median lethal dose (LD50 value). The most venomous snakes in the world are mostly native to Australia. The most venomous of all snakes is generally the Inland taipan, also found in Australia, whose “taipoxin” has an LD50 value of 2 μg/kg body weight in mice when administered subcutaneously.

You can find more information about venomous snakes in the articles: The most venomous snakes in the world and The most venomous snakes TOP 10, today we will focus on their dimensions. In the table below, we have collected more than 250 venomous snakes and sorted them by size. As you can see, venomous snakes are not only small, not very menacing-looking creatures, but also one of the largest snakes living today on our planet. Of course, they’re not quite as big and heavy as an anaconda or reticulated python, understandably, but some of them are really impressive in size.

Rattlesnakes (pit vipers)

 

The biggest venomous snakes TOP 50

RankCommon NameScientific NameLength [cm]Length [ft]
1King cobraOphiophagus hannah585 cm19.2 ft
2Black mambaDendroaspis polylepis450 cm14.8 ft
3BushmastersLachesis melanocephala400 cm13.1 ft
4Atlantic bushmasterLachesis muta365 cm12.0 ft
5Coastal taipanOxyuranus scutellatus335 cm11.0 ft
6Mulga snakePseudechis australis330 cm10.8 ft
7King brown snakePseudechis australis330 cm10.8 ft
8Forest cobraNaja melanoleuca320 cm10.5 ft
9Brown tree snakeBoiga irregularis300 cm9.8 ft
10Narrow banded Sea SnakeHydrophis spiralis300 cm9.8 ft
11False Water CobraHydrodynastes gigas300 cm9.8 ft
12Blandings Tree SnakeToxicodryas blandingii280 cm9.2 ft
13Ringed water cobraNaja annulata280 cm9.2 ft
14Eastern green mambaDendroaspis angusticeps280 cm9.2 ft
15Giant spitting cobraNaja ashei270 cm8.9 ft
16Banded kraitBungarus fasciatus270 cm8.9 ft
17Banded kraitBungarus fasciatus270 cm8.9 ft
18Elegant sea snakeHydrophis elegans260 cm8.5 ft
19Collett’s black snakePseudechis colletti260 cm8.5 ft
20Egyptian cobraNaja haje259 cm8.5 ft
21Red bellied black snakePseudechis porphyriacus255 cm8.4 ft
22TerciopeloBothrops asper250 cm8.2 ft
23Eastern Diamondback RattlesnakeCrotalus adamanteus250 cm8.2 ft
24Inland taipanOxyuranus microlepidotus250 cm8.2 ft
25Banded cobraNaja annulifera250 cm8.2 ft
26Okinawa habuProtobothrops flavoviridis240 cm7.9 ft
27Western green mambaDendroaspis viridis240 cm7.9 ft
28Eastern brown snakePseudonaja textilis240 cm7.9 ft
29Mangrove snakeBoiga dendrophila230 cm7.5 ft
30Monocled cobraNaja kaouthia230 cm7.5 ft
31Brazilian lanceheadBothrops moojeni230 cm7.5 ft
32Black necked spitting cobraNaja nigricollis220 cm7.2 ft
33Jameson’s mambaDendroaspis jamesoni220 cm7.2 ft
34Papuan black snakePseudechis papuanus220 cm7.2 ft
35Spectacled cobraNaja naja220 cm7.2 ft
36JararacussuBothrops jararacussu220 cm7.2 ft
37Western diamondback rattlesnakeCrotalus atrox213 cm7.0 ft
38Martinique lanceheadBothrops lanceolatus210 cm6.9 ft
39Mainland tiger snakeNotechis scutatus210 cm6.9 ft
40Red headed kraitBungarus flaviceps210 cm6.9 ft
41Mexican west coast rattlesnakeCrotalus basiliscus205 cm6.7 ft
42Central African gaboon viperBitis gabonica205 cm6.7 ft
43Mangshan pit viperProtobothrops mangshanensis203 cm6.7 ft
44Olive brown sea snakeAipysurus laevis200 cm6.6 ft
45DugitePseudonaja affinis200 cm6.6 ft
46Levantine viperMacrovipera lebetina200 cm6.6 ft
47Montpellier SnakeMalpolon monspessulanus200 cm6.6 ft
48Northern Philippine cobraNaja philippinensis200 cm6.6 ft
49Fer-de-LanceBothrops lanceolatus200 cm6.6 ft
50Annulated sea snakeHydrophis cyanocinctus190 cm6.2 ft

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