Intraperitoneal LD-50s
Scientific name Common name LD-50 (mg/kg) Notes
 Oxyuranus scutellatus  Coastal taipan  0.009 Oxyuranus scutellatus canni (Papua New Guinea taipan) should be considered as having the same venoms composition until proven otherwise
Pseudocerastes fieldi Field's horned viper 0.02
Bungarus multicinctus Many banded krait 0.08
Bungarus caeruleus Indian krait 0.089
Enhydrina schistosa Beaked sea snake 0.107
Dendroaspis angusticeps Eastern green mamba 0.117
Micrurus micrurus anomalus coral snake species 0.118 No such species
Walterinnesia aegyptia Desert cobra 0.133
Crotalus scutulatus scutulatus Mojave green rattlesnake 0.159
Crotalus mitchelli mitchelli Desert speckled rattlesnake 0.18
Naja haje Egyptian cobra 0.185 Species complex - southern African forms now regarded as separate species, N. annulifera
Crotalus viridis concolor Midget faded rattlesnake 0.2
Crotalus durissus terrificus Cascabel 0.216
Naja kaouthia Monocled cobra 0.225
Hydrophis cyanocinctus Annulated sea snake 0.24
Cerastes vipera Sahara sand viper 0.25
Lapemis hardwickii Hardwicke's sea snake 0.26
Echis coloratus Carpet viper 0.263
Austrelaps superbus Lowland copperhead 0.28
Cerastes cerastes Desert horned viper 0.3
Hydrophis spiralis Yellow sea snake 0.315
Naja naja Spectacled cobra 0.315 Careful - any Asiatic cobra may have been referred to as N. naja in the past
Naja melanoleuca Black forest cobra 0.324
Dendroaspis viridis Western green mamba 0.33
Hydrophis klossi sea snake species 0.365
Daboia russelli russelli Russell's viper species 0.4
Hydrophis melanosoma Black banded sea snake 0.4
Naja flava Cape cobra 0.4 Should be N. nivea
Naja nigricollis Black necked spitting cobra 0.4
Dendroaspis jamesoni Jameson's mamba 0.414
Vipera ammodytes Long-nosed viper 0.415
Naja nivea Cape cobra 0.42
Daboia russelii formosensis Russel's viper subspecies 0.489 Synonym of D.r. siamensis, locality info lacking
Kerilia jerdoni Jerdon's sea snake 0.53
Micrurus frontalis frontalis Southern coral snake 0.592
Crotalus durissus durissus Neotropical rattlesnake 0.667
Micrurus nigrocinctus Black banded coral snake 0.701
Micrurus alleni coral snake species 0.705
Bitis arientas Puff adder 0.716
Pseudechis colletti Collett's snake 0.84
Dendroaspis polylepsis Black mamba 0.941
Micrurus annulatus hertwigi coral snake species 0.951
Micrurus dumarillii coral snake species 0.96
Agkistrodon bilineatus Cantil 1.155
Micrurus spixii obscurus Amazonian coral snake subspecies 1.16
Bungarus fasciatus Banded krait 1.55
Bitis gabonica Gaboon viper 1.589
Ophiophagus hannah King cobra 1.644 Give locality, this species is about to be split
Vipera palaestinae Palestine viper 1.9
Vipera bornmuelleri True viper species 1.92
Crotalus viridis viridis Prarie rattlesnake 2
Naja pallida Sudan red spitting cobra 2
Vipera latifii True viper species 2.07
Echis carinatus Saw-scaled viper 2.15 Geographical data not given, species complex
Crotalus viridis lutosus Great basin rattlesnake 2.2
Crotalus viridis caliginsis rattlesnake species 2.26
Crotalus horridus horridus Timber rattlesnake 2.272
Crotalus adamanteus Eastern diamondback rattlesnake 2.295
Agkistrodon bilineatus taylori Ornate cantil 2.3
Crotalus viridis helleri Southern Pacific rattlesnake 2.44
Crotalus durissus totonacus rattlesnake species 2.5
Crotalus mitchelli pyrrhus Southwestern speckled rattlesnake 2.7
Bothrops asper Terciopelo 2.844
Tropidolaemus wagleri Wagler's viper 3.58 Formerly in Trimeresurus genus
Bothrops atrox Barba amarilla 3.8 Species complex, geographical origin not given
Crotalus exul rattlesnake species 3.9
Crotalus cerastes Sidewinder 4
Crotalus catalinensis rattlesnake species 4.1
Agkistrodon contortrix mokasen Northern copperhead 4.222
Agkistrodon piscivorus leucostoma Western cottonmouth 4.844
Calloselasma rhodostoma Malayan pit viper 4.9885 Fomerly in Agkistrodon genus.
Trimeresurus flavoviridis Okinawa habu 5.07
Agkistrodon piscovorus Cottomouth/ Water moccasin 5.1
Crotalus atrox Western diamondback rattlesnake 5.588
Lachesis muta Bushmaster 6.17 Give locality, as L. muta recently split into 3 species
Sistrurus milarius barbouri Red pygmy rattlesnake 6.822
Agkistrodon contortrix contortrix Southern copperhead 10.9
Trimeresurus okinavensis Himehabu 15