| 词条 | Checkered garter snake |
| 释义 |
| name = Checkered garter snake | image = Thamnophis_marcianus.jpg | image_caption = | status = LC | status_system = IUCN3.1 | status_ref = [1] | genus = Thamnophis | species = marcianus | authority = (Baird & Girard, 1853) | synonyms = *Eutainia marciana {{small|Baird & Girard, 1853}}
|synonyms_ref =[2] }} The checkered garter snake (Thamnophis marcianus) is a species of garter snake in the subfamily Natricinae of the family Colubridae. The species is endemic to the southwestern United States, Mexico, and Central America. EtymologyThe specific epithet, marcianus, is in honor of American Brigadier General Randolph B. Marcy, who led surveying expeditions to the frontier areas in the mid 19th century.[3] DescriptionThe checkered garter snake is typically greenish in color, with a distinct, black checkerboard pattern down its back. It is capable of growing to a total length (including tail) of 42 inches (107 cm), but is usually 18 to 24 inches (46 to 61 cm).[4] HabitatThe preferred habitats of T. marcianus are desert and grassland, usually close to water.[4] DietThe diet of T. marcianus includes small frogs, toads, small fish, and earthworms.{{citation needed|date=March 2019}} If kept as a pet, it can be trained on live or freeze-thawed mice, but even so, it is fussy eater and can suddenly start to refuse mice at any point.{{citation needed|date=March 2019}} Defensive behaviorT. marcianus will strike and bite if provoked. It will also release a foul-smelling liquid from its cloaca onto attackers.{{citation needed|date=March 2019}} VenomT. marcianus has been found to have mild venom.{{citation needed|date=March 2019}} SubspeciesTwo subspecies of T. marcianus are recognized as being valid, including the nominotypical subspecies.[2]
Nota bene: A trinomial authority in parentheses indicates that the subspecies was originally described in a genus other than Thamnophis. In captivityThe checkered garter snake is the easiest garter snake to tame. Even a wild-caught one can become tame in a few days if handled carefully.{{citation needed|date=March 2019}} The checkered garter snake is frequently available in the exotic pet trade, and makes a hardy captive animal.{{citation needed|date=March 2019}} It can be trained to accept mice or fish fillets as food.{{citation needed|date=March 2019}} Captive breeding, while not common, is done, and albino variants are being produced.{{citation needed|date=March 2019}} References1. ^{{Cite journal|vauthors=Chaves G, Lamar W, Porras LW, Solórzano A, Sunyer J, Hammerson GA|title=Thamnophis marcianus |journal=The IUCN Red List of Threatened Species|volume=2013|page=e.T198521A2529116|publisher=IUCN|date=2013|url=http://www.iucnredlist.org/details/198521/0|doi=10.2305/IUCN.UK.2013-2.RLTS.T198521A2529116.en|access-date=13 January 2018}} 2. ^1 "Thamnophis marcianus". The Reptile Database. www.reptile-database.org. 3. ^Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. {{ISBN|978-1-4214-0135-5}}. (Thamnophis marcianus, p. 168). 4. ^1 Powell R, Conant R, Collins JT (2016). Peterson Field Guide to Reptiles and Amphibians of Eastern and Central North America, Fourth Edition. Boston and New York: Houghton Mifflin Harcourt. 494 pp., 47 color plates, 207 figures. {{ISBN|978-0-544-12997-9}}. (Thamnophis marcianus, p. 428 + Plate 42). External links
Further reading{{Commons category|Thamnophis marcianus}}
3 : Thamnophis|Extant Pliocene first appearances|Reptiles described in 1853 |
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