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{{Short description|Subspecies of snake}}
{{italictitle}}
{{Redirect|Yellow-bellied racer|the western subspecies|Western yellow-bellied racer}}
{{Taxobox
{{Subspeciesbox
| name = ''Coluber constrictor flaviventris''
| image = Coluber_constrictor_flaviventris_(1).jpg
| image = Coluber_constrictor_flaviventris_(1).jpg
⚫
| image_caption = Eastern yellow-bellied racer
| image_width = 240px
⚫
| genus = Coluber
⚫
| image_caption = '''eastern yellowbelly racer'''
| regnum = [[Animal]]ia
| species = constrictor
⚫
| subspecies = flaviventris
| phylum = [[Chordate|Chordata]]
| subphylum = [[Vertebrate|Vertebrata]]
| authority = [[Thomas Say|Say]], 1823
| classis = [[Reptile|Reptilia]]
| ordo = [[Squamata]]
| subordo = [[Serpentes]]
| familia = [[Colubridae]]
| subfamilia = [[Colubrinae]]
⚫
| genus = ''[[Coluber]]''
| species = ''[[Coluber constrictor|C. constrictor]]''
⚫
| subspecies = '''''C. c. flaviventris'''''
| trinomial = ''Coluber constrictor flaviventris''
| trinomial_authority = [[Thomas Say|Say]], 1823
| synonyms = * ''Coluber flaviventris'' <small>Say, 1823</small>
| synonyms = * ''Coluber flaviventris'' <small>Say, 1823</small>
* ''Bascanion flaviventris'' <br><small>&mdash; [[Spencer Fullerton Baird|Baird]] & [[Charles Frédéric Girard|Girard]], 1853</small>
* ''Bascanion flaviventris'' <br /><small>&mdash; [[Spencer Fullerton Baird|Baird]] & [[Charles Frédéric Girard|Girard]], 1853</small>
* ''Coryphodon flaviventris'' <br><small>&mdash; [[Edward Hallowell (herpetologist)|Hallowell]], 1856</small><ref name="RDB">The Reptile Database. www.reptile-database.org</ref>
* ''Coryphodon flaviventris'' <br /><small>&mdash; [[Edward Hallowell (herpetologist)|Hallowell]], 1856</small><ref name="RDB">[http://reptile-database.reptarium.cz/species?genus=Coluber&species=constrictor&search_param=%28%28genus%3D%27Coluber%27%2Cexact%29%28species%3D%27constrictor%27%2Cexact%29%29 ''Coluber constrictor''], The Reptile Database. www.reptile-database.org</ref>
* ''Coluber constrictor'' var. ''flaviventris'' <br><small>&mdash; [[Samuel Garman|Garman]], 1883</small><ref>[[Leonhard Hess Stejneger|Stejneger, L.]], and [[Thomas Barbour|T. Barbour]]. 1917. ''A Check List of North American Amphibians and Reptiles''. Harvard University Press. Cambridge, Massachusetts. 125 pp. (''Coluber constrictor flaviventris'', p. 79.)</ref>
* ''Coluber constrictor'' var. ''flaviventris'' <br /><small>&mdash; [[Samuel Garman|Garman]], 1883</small><ref>[[Leonhard Hess Stejneger|Stejneger, L.]], and [[Thomas Barbour|T. Barbour]] (1917). ''A Check List of North American Amphibians and Reptiles''. Harvard University Press. Cambridge, Massachusetts. 125 pp. (''Coluber constrictor flaviventris'', p. 79.)</ref>
* ''Coluber constrictor flaviventris'' <br><small>&mdash; [[Chapman Grant|Grant]], 1937</small><ref name="RDB"/>
* ''Coluber constrictor flaviventris'' <br /><small>&mdash; [[Chapman Grant|Grant]], 1937</small><ref name="RDB"/>
}}
}}


'''''Coluber constrictor flaviventris''''', commonly known as the '''eastern yellowbelly racer''', is a [[subspecies]] of [[Coluber|racer]], a non[[venom (poison)|venomous]], [[colubrid]] [[snake]]. It is [[Endemism|endemic]] to [[North America]].
'''''Coluber constrictor flaviventris''''', commonly known as the '''eastern yellow-bellied racer''', is a [[subspecies]] of the [[eastern racer]], a non-venomous [[colubrid]] [[snake]]. It is [[Endemism|endemic]] to [[North America]].<ref>Integrated Taxonomic Information System (ITIS). www.itis.gov.</ref>


==Description==
==Description==
The eastern yellowbelly racer is a thin-bodied snake, capable of attaining a total length of 1.5 metres (60&nbsp;inches). As an adult, its color is an olive [[grey]]-[[green]], with a yellow underside. As a juvenile it is remarkably different, having a tan or cream-colored body with brown or grey blotches. The color gradually changes as the snake ages, becoming solid olive grey-green. Authors disagree as to when this transformation is complete, from 1½ to three years old, and from 18 to 30 inches (46-76 cm) in total length.<ref>[[Albert Hazen Wright|Wright, A.H.]], & A.A. Wright. 1957. ''Handbook of Snakes of the United States and Canada''. Comstock. Ithaca & London. 1,105 pp. (in 2 volumes) (''Coluber constrictor flaviventris'', pp. 138-142, Figure 44., Map 16.)</ref>
The eastern yellow-bellied racer is a thin-bodied snake, capable of attaining a total length of 1.5&nbsp;metres (60&nbsp;inches). As an adult, its color is an olive [[grey]]-[[green]] with a yellow underside. As a juvenile it is remarkably different, having a tan or cream-colored body with brown or grey blotches. The color gradually changes as the snake ages, becoming solid olive grey-green. Authors disagree as to when this transformation is complete, from 1½ to three years old, and from 18 to 30 inches (46–76&nbsp;cm) in total length.<ref>[[Albert Hazen Wright|Wright, A.H.]], & A.A. Wright (1957). ''Handbook of Snakes of the United States and Canada''. Comstock. Ithaca & London. 1,105 pp. (in 2 volumes) (''Coluber constrictor flaviventris'', pp. 138-142, Figure 44., Map 16.)</ref>


==Geographic range==
==Geographic range==
The eastern yellowbelly racer is found in the [[United States]], from the states of [[Montana]], [[North Dakota]], east to [[Iowa]] and south to [[Texas]], and southwest to [[Louisiana]]. It is also found in isolated populations in [[Canada]], and is listed as an endangered species in the province of [[Saskatchewan]].
The eastern yellow-bellied racer is found in the [[United States]], from the states of [[Montana]], [[North Dakota]], [[South Dakota]], east to [[Iowa]], south to [[Texas]] and southeast to [[Louisiana]]. It is also found in isolated populations in [[Canada]].<ref>[[Roger Conant (herpetologist)|Conant, R.]] (1975). ''A Field Guide to Reptiles and Amphibians of Eastern and Central North America, Second Edition''. Houghton Mifflin. Boston. 429 pp. {{ISBN|0-395-19977-8}} (paperback). (''Coluber constrictor flaviventris'', pp. 179–180 + Plate 26 + Map 139.)</ref>


==Conservation status==
⚫
[[Image:Coluber constrictor flaviventris.jpg|240px|thumb|right|Juvenile eastern yellowbelly racer, ''C. c. flaviventris'']]
''Coluber constrictor flaviventris'' is listed as an endangered species in the province of [[Saskatchewan]].<ref>{{cite web |title=Species profile - Eastern Yellow-bellied Racer |url=http://www.sararegistry.gc.ca/species/speciesdetails_e.cfm?sid=280 |website=Species at risk public registry |publisher=Government of Canada |access-date=28 January 2019 |date=September 19, 2018 |archive-url=https://web.archive.org/web/20170823221837/http://www.sararegistry.gc.ca/species/speciesDetails_e.cfm?sid=280 |archive-date=23 August 2017 |url-status=dead }}</ref>

⚫
[[File:Coluber constrictor flaviventris.jpg|240px|thumb|right|Juvenile eastern yellow-bellied racer, ''C. c. flaviventris'']]


==Behavior==
==Behavior==
Racers are [[Diurnal animal|diurnal]], active predators. They are fast moving, and are often quick to bite if handled. They generally eat [[rodent]]s, [[lizard]]s, and [[frog]]s, but as juveniles they will also consume various kinds of soft bodied [[insect]]. They are fairly nervous snakes, and as such, do not typically fare well in captivity.{{Citation needed|date=June 2008}}
Racers are [[Diurnal animal|diurnal]], active predators. They are fast moving and are often quick to bite if handled. They generally eat [[rodent]]s, [[lizard]]s and [[frog]]s, but as juveniles they will also consume various kinds of soft-bodied [[insect]]s. They are fairly nervous snakes, and as such, do not typically fare well in captivity.<ref>{{cite web |url=http://www.nmherpsociety.org/reptiles/snakes/coluberconstrictorflaviventris/index.html |title=''Coluber constrictor flaviventris'': Eastern Yellow-bellied Racer}}</ref>


==References==
==References==
{{Reflist}}
{{Reflist}}

==Further reading==
* [[Thomas Say|Say, T.]] ''in'' [[Edwin James (scientist)|James, E.]] (1823). ''Account of an Expedition from Pittsburgh to the Rocky Mountains, Performed in the Years 1819, 1820. By Order of the Hon. J.C. Calhoun, Secretary of War, Under the Command of Maj. S.H. Long, of the U.S. Top. Engineers. Compiled from the Notes of Major Long, Mr. T. Say, and other Gentlemen of the Party. In Three Volumes. Volume I.'' Longman, Hurst, Reese, Orme, and Brown. London. <br />vii + 344 pp. (''Coluber flaviventris'', pp.&nbsp;167, 337–338.)


==External links==
==External links==
*[http://www.zo.utexas.edu/research/txherps/snakes/coluber.constrictor.html Herps of Texas: Coluber constrictor]
*[https://web.archive.org/web/20060409203043/http://www.zo.utexas.edu/research/txherps/snakes/coluber.constrictor.html Herps of Texas: ''Coluber constrictor'']

{{Taxonbar|from=Q5149500}}


[[Category:Colubrids]]
[[Category:Colubrids]]
[[Category:Reptiles of the United States]]
[[Category:Fauna of the Plains-Midwest (United States)]]
[[Category:Fauna of the Plains-Midwest (United States)]]
[[Category:Fauna of the Eastern United States]]
[[Category:Fauna of the Southeastern United States]]
[[Category:Fauna of Canada]]
[[Category:Reptiles of Canada]]




Latest revision as of 01:06, 13 October 2024

"Yellow-bellied racer" redirects here. For the western subspecies, see Western yellow-bellied racer.

Coluber constrictor flaviventris
Eastern yellow-bellied racer
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Genus: Coluber
Species:
C. constrictor
Subspecies:
C. c. flaviventris
Trinomial name
Coluber constrictor flaviventris
Say, 1823
Synonyms
  • Coluber flaviventris Say, 1823
  • Bascanion flaviventris
    — Baird & Girard, 1853
  • Coryphodon flaviventris
    — Hallowell, 1856[1]
  • Coluber constrictor var. flaviventris
    — Garman, 1883[2]
  • Coluber constrictor flaviventris
    — Grant, 1937[1]

Coluber constrictor flaviventris, commonly known as the eastern yellow-bellied racer, is a subspecies of the eastern racer, a non-venomous colubrid snake. It is endemic to North America.[3]

Description

[edit]

The eastern yellow-bellied racer is a thin-bodied snake, capable of attaining a total length of 1.5 metres (60 inches). As an adult, its color is an olive grey-green with a yellow underside. As a juvenile it is remarkably different, having a tan or cream-colored body with brown or grey blotches. The color gradually changes as the snake ages, becoming solid olive grey-green. Authors disagree as to when this transformation is complete, from 1½ to three years old, and from 18 to 30 inches (46–76 cm) in total length.[4]

Geographic range

[edit]

The eastern yellow-bellied racer is found in the United States, from the states of Montana, North Dakota, South Dakota, east to Iowa, south to Texas and southeast to Louisiana. It is also found in isolated populations in Canada.[5]

Conservation status

[edit]

Coluber constrictor flaviventris is listed as an endangered species in the province of Saskatchewan.[6]

Juvenile eastern yellow-bellied racer, C. c. flaviventris

Behavior

[edit]

Racers are diurnal, active predators. They are fast moving and are often quick to bite if handled. They generally eat rodents, lizards and frogs, but as juveniles they will also consume various kinds of soft-bodied insects. They are fairly nervous snakes, and as such, do not typically fare well in captivity.[7]

References

[edit]
  1. ^ a b Coluber constrictor, The Reptile Database. www.reptile-database.org
  2. ^ Stejneger, L., and T. Barbour (1917). A Check List of North American Amphibians and Reptiles. Harvard University Press. Cambridge, Massachusetts. 125 pp. (Coluber constrictor flaviventris, p. 79.)
  3. ^ Integrated Taxonomic Information System (ITIS). www.itis.gov.
  4. ^ Wright, A.H., & A.A. Wright (1957). Handbook of Snakes of the United States and Canada. Comstock. Ithaca & London. 1,105 pp. (in 2 volumes) (Coluber constrictor flaviventris, pp. 138-142, Figure 44., Map 16.)
  5. ^ Conant, R. (1975). A Field Guide to Reptiles and Amphibians of Eastern and Central North America, Second Edition. Houghton Mifflin. Boston. 429 pp. ISBN 0-395-19977-8 (paperback). (Coluber constrictor flaviventris, pp. 179–180 + Plate 26 + Map 139.)
  6. ^ "Species profile - Eastern Yellow-bellied Racer". Species at risk public registry. Government of Canada. September 19, 2018. Archived from the original on 23 August 2017. Retrieved 28 January 2019.
  7. ^ "Coluber constrictor flaviventris: Eastern Yellow-bellied Racer".

Further reading

[edit]
  • Say, T. in James, E. (1823). Account of an Expedition from Pittsburgh to the Rocky Mountains, Performed in the Years 1819, 1820. By Order of the Hon. J.C. Calhoun, Secretary of War, Under the Command of Maj. S.H. Long, of the U.S. Top. Engineers. Compiled from the Notes of Major Long, Mr. T. Say, and other Gentlemen of the Party. In Three Volumes. Volume I. Longman, Hurst, Reese, Orme, and Brown. London.
    vii + 344 pp. (Coluber flaviventris, pp. 167, 337–338.)
[edit]


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