Suborder Serpentes, Family Colubridae Heterodon platirhinos: eastern hognose snake

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Suborder Serpentes, Family Colubridae(Heterodon
platirhinos eastern hognose snake)

• Keeled scales upturned snout broad neck stripe
  anal plate divided length to 84 cm
• Woodland, grassland
• Amphibians (dig up toads), other vertebrates
  carrion
• Oviparous
• Statewide minus north-central IA

http//www.herpnet.net/Iowa-Herpetology/reptiles/
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Heterodon platirhinos eastern hognose snake
http//www.duke.edu/jspippen/herps/easternhognose
snake.htm

• Uncommon
• Puff adder (spreads neck, hisses, strikes,
  plays dead)

http//www.herpnet.net/Iowa-Herpetology/reptiles/
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Suborder Serpentes, Family Colubridae(Elaphe
obsoleta black rat snake)
http//www.herpnet.net/Iowa-Herpetology/reptiles/

• Adult - Scales weakly keeled dorsum black or
  with faint spots white chin, throat venter
  checkered anal plate divided large body
• Juvenile Blotches on light background (tail
  blotched)

http//fwie.fw.vt.edu/VHS/
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Elaphe obsoleta black rat snake
http//www.discoverlife.org/nh/tx/Vertebrata/Repti
lia/images/

• Woodland tree hollows arboreal
• Rodents, birds, eggs
• Oviparous
• East, southern IA
• Strikes or remains motionless when threatened
• Constrictor

http//oboroten.furvect.com/Photos/Reptiles/snakeh
ead.jpg
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Suborder Serpentes, Family Colubridae(Elaphe
vulpina fox snake)

• Identification
• Dorsal scales weakly keeled, lateral scales
  unkeeled
• Dorsum yellow to light brown with dark blotches
• Line on top of head connects eyes
• Juvenile head with many black lines (absent in
  adult)
• Venter checkered
• Anal plate divided
• Length to 137 cm (4.5 feet)

http//www.herpnet.net/Iowa-Herpetology/reptiles/
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Elaphe vulpina fox snake

• Habitat Woods, grassland, rocky areas near
  rivers
• Diet Rodents, other vertebrates
• Reproduction oviparous
• Distribution statewide
• Conservation common
• Other red fox odor constrictor usually doesnt
  strike

http//www.reptarium.cz/foto/elaphe_vulpina_02.jpg
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Suborder Serpentes, Family Colubridae(Nerodia
sipedon northern water snake)
http//www.herpnet.net/Iowa-Herpetology/reptiles/

• Identification
• Scales keeled
• Dorsum with crossbands or blotches (prominent in
  young large specimens may be unpatterned)
• Venter white with crescent-shaped markings
• Anal plate divided
• Length to 107 cm (3.5 feet)

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Nerodia sipedon northern water snake

• Habitat Near or in water
• Diet Aquatic animals
• Reproduction Viviparous
• Distribution Statewide minus northwest IA

http//www.herpnet.net/Iowa-Herpetology/reptiles/
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Nerodia sipedon northern water snake

• Conservation Common
• Other Can remain submerged for 1.5 hours
  vicious anticoagulant in saliva herds fish

http//frogsandsnakes.homestead.com/files/
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Suborder Serpentes, Family Colubridae(Storeria
occipitomaculata redbelly snake)
http//www.herpnet.net/Iowa-Herpetology/reptiles/

• Scales keeled white spots on nape (usually)
  venter red, orange, yellow anal plate divided
• Woodland sand near water
• Soft-bodied invertebrates
• Viviparous
• North, south IA
• Common
• Dont bite

http//fwie.fw.vt.edu/VHS/
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Suborder Serpentes, Family Colubridae(Storeria
dekayi brown snake)

• Identification
• Scales keeled
• Diagonal dark streak on side of head (sometimes
  absent)
• Dorsum brown with light dorsal stripe bordered by
  small spots
• Venter pink to tan
• Juvenile neck band may lack other dorsal
  markings
• Anal plate divided
• Length to 33 cm (13 inches)

http//www.schlangenliebhaber.de/storeria.jpg
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Storeria dekayi brown snake

• Habitat Near water grassland woodland
• Diet Invertebrates small amphibians
• Reproduction viviparous
• Distribution Statewide minus northwest IA

http//www.dnr.state.oh.us/wildlife/Images/reps_he
rps/
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Storeria dekayi brown snake

• Conservation Common
• Other Variable temperment (bite does no damage)

http//www.herpnet.net/Iowa-Herpetology/images/sna
kes/brownsnake_4.jpg