#colubrid_snake__colubrid  mostly harmless temperate-to-tropical terrestrial or arboreal or aquatic snakes
  supertype:  #ophidian__snake__serpent  limbless scaly elongate reptile; some are venomous
  member of:  #family_Colubridae
  subtype:  #hoop_snake  any of various harmless North American snakes that were formerly believed to take tail in mouth and roll along like a hoop
  subtype:  #thunder_snake__thundersnake__worm_snake__Carphophis_amoenus  small reddish wormlike snake of eastern United States
  subtype:  #ringneck_snake__ring-necked_snake__ring_snake  any of numerous small nonvenomous North American snakes with a yellow or orange ring around the neck
  subtype:  #hognose_snake__hognosesnake__puff_adder__sand_viper  harmless North American snake with upturned nose; may spread its head and neck or play dead when disturbed
  subtype:  #leaf-nosed_snake  any of various pale blotched snakes with a blunt snout of southwestern North America
  subtype:  #grass_snake__grasssnake__green_snake__greensnake  either of two N. American chiefly insectivorous green snakes
     subtype:  #smooth_green_snake__Opheodrys_vernalis  of western and central United States
     subtype:  #rough_green_snake__roughgreensnake__Opheodrys_aestivus  of southern and eastern United States
  subtype:  #green_snake__greensnake  any of numerous African green snakes
  subtype:  #racer  slender fast-moving North American snakes
     subtype:  #blacksnake__black_racer__Coluber_constrictor  blackish racer of the eastern United States that grows to six feet
        subtype:  #blue_racer__Coluber_constrictor_flaviventris  bluish-green blacksnake found from Ohio to Texas
     subtype:  #horseshoe_whipsnake__Coluber_hippocrepis  slender fast-moving Eurasian snake
  subtype:  #whipsnake__whip_snake  any of several fast-moving North American snakes with long whiplike tails
     subtype:  #coachwhip_snake__coachwhipsnake__coachwhip__Masticophis_flagellum  a whipsnake of southern United States and Mexico; tail resembles a braided whip
     subtype:  #California_whipsnake__striped_racer__stripedracer__Masticophis_lateralis  a whipsnake of scrublands and rocky hillsides
     subtype:  #Sonoran_whipsnake__Masticophis_bilineatus  both terrestrial and arboreal snake of United States southwest
  subtype:  #rat_snake__ratsnake  any of various nonvenomous rodent-eating snakes of North America and Asia
     subtype:  #corn_snake__red_rat_snake__redratsnake__Elaphe_guttata  large harmless snake of southeastern United States; often on farms
     subtype:  #black_rat_snake__blackratsnake__blacksnake__pilot_blacksnake__pilotblacksnake__mountain_blacksnake__Elaphe_obsoleta  large harmless shiny black North American snake
     subtype:  #chicken_snake__chickensnake  large North American snake
     subtype:  #Indian_rat_snake__Ptyas_mucosus  enter buildings in pursuit of prey
  subtype:  #glossy_snake__Arizona_elegans  nocturnal burrowing snake of western United States with shiny tan scales
  subtype:  #bull_snake  any of several large harmless rodent-eating North American burrowing snakes
     subtype:  #gopher_snake__Pituophis_melanoleucus  bull snake of western North America that invades rodent burrows
     subtype:  #pine_snake  any of several bull snakes of eastern and southeastern United States found chiefly in pine woods; now threatened
  subtype:  #king_snake  any of numerous nonvenomous North American constrictors; feed on other snakes and small mammals
     subtype:  #common_kingsnake__Lampropeltis_getulus  widespread in United States except northern regions; black or brown with yellow bands
     subtype:  #milk_snake__house_snake__housesnake__milk_adder__checkered_adder__checkeredadder__Lampropeltis_triangulum  nonvenomous tan and brown king snake with an arrow-shaped occipital spot; southeastern ones have red stripes like coral snakes
  subtype:  #garter_snake__grass_snake__grasssnake  any of numerous nonvenomous longitudinally-striped viviparous North and Central American snakes
     subtype:  #common_garter_snake__Thamnophis_sirtalis  widespread in North America
     subtype:  #ribbon_snake__Thamnophis_sauritus  slender yellow-striped North American garter snake; prefers wet places
     subtype:  #Western_ribbon_snake__Thamnophis_proximus  yellow- or reddish-striped snake of temperate woodlands and grasslands to tropics
  subtype:  #lined_snake__Tropidoclonion_lineatum  secretive snake of city dumps and parks as well as prairies and open woods; feeds on earthworms; of central United States
  subtype:  #ground_snake__Sonora_semiannulata  small shy brightly-ringed terrestrial snake of arid or semiarid areas of western North America
  subtype:  #eastern_ground_snake__Potamophis_striatula__Haldea_striatula  in some classifications placed in genus Haldea; small reddish-gray snake of eastern North America
  subtype:  #water_snake__watersnake  any of various mostly harmless snakes that live in or near water
     subtype:  #common_water_snake__banded_water_snake__Natrix_sipedon__Nerodia_sipedon  in some classifications placed in the genus Nerodia; western United States snake that seldom ventures far from water
     subtype:  #water_moccasin__watermoccasin  any of numerous North American water snakes inhabiting fresh waters
     subtype:  #ring_snake__grass_snake__grasssnake__ringed_snake__Natrix_natrix  harmless European snake with a bright yellow collar; common in England
        subtype:  #viperine_grass_snake__Natrix_maura  a small harmless grass snake
  subtype:  #red-bellied_snake__redbelliedsnake__Storeria_occipitamaculata  harmless woodland snake of southeastern United States
  subtype:  #sand_snake  small North American burrowing snake
     subtype:  #banded_sand_snake__Chilomeniscus_cinctus  a sand snake of southwestern United States; lives in fine to coarse sand or loamy soil in which it `swims'; banding resembles that of coral snakes
  subtype:  #black-headed_snake  small secretive ground-dwelling snake; found from central United States to Argentina
  subtype:  #vine_snake  slender arboreal snake found from southern Arizona to Bolivia
  subtype:  #lyre_snake  mildly venomous snake with a lyre-shaped mark on the head; found in rocky areas from southwestern United States to Central America
     subtype:  #Sonoran_lyre_snake__Trimorphodon_lambda  of desert regions of southwestern North America
  subtype:  #night_snake__Hypsiglena_torquata  nocturnal prowler of western United States and Mexico
  subtype:  #indigo_snake__gopher_snake__Drymarchon_corais  large dark-blue nonvenomous snake that invades burrows; found in southern North America and Mexico
     subtype:  #eastern_indigo_snake__Drymarchon_corais_couperi  a variety of indigo snake

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