Lawson, R. 1987. -, Beolens, Bo; Michael Watkins, and Michael Grayson 2011. Joseph T & Suzanne L. Collins/Getty Images/Science Source Show More Show Less 29 of 31 Graham's crayfish snake. Evidence for determinism in species diversification and contingency in phenotypic evolution during adaptive radiation. 1989. Required fields are marked *. Conant,R. Geographic Distribution. Dorsal surface is olive, with the exception of a light colored lateral stripe found along the first three dorsal scale rows. 2004. Further records of the ecology and distribution of amphibians and reptiles in the middle west. VENOMOUS SNAKES (PIT VIPER) IN THE FULSHEAR AREA. of Sci., Lincoln, Trans. 00:1–10, Burbrink, Frank T.; Xin Chen, Edward A. Myers, Matthew C. Brandley and R. Alexander Pyron 2012. This snake was one observed basking on a gravel road running through a marsh. The scales are keeled, the belly is plain white or dull yellow with occasional faint dark spots along the midline, and the anal plate is divided. Tennant, A. Great Plains Nature Center, Wichita, 69 pp. Regina grahamii (Graham's Crayfish Snake). American Midland Naturalist 18 (3): 370-372 -, Hibbitts, Toby J. and Connor S. Adams. NOT venomous. Max 47 inches (119.4 cm; Conant and Collins 1998). It is a small, slender snake (18″ – 30″), it is incredibly reclusive and rarely seen. Absent from the Rio Grande Valley and portions of deep east Texas. Regina grahamii is found throughout portions of the Midwest and the South, from Iowa and Illinois south to Louisiana and Texas. Keeled dorsal scales, in rows of 19 at midbody. Copeia 1938 (4): 173-182 -. 2015. Unlike its close relative the queen snake (Regina septemvittata), which exclusively dines on freshly molted crayfish, R. grahamii will also consume fish and frogs. Journal of Herpetology 21 (2): 140-157 - get paper here; Liner, E. A. Small head slightly wider than neck, keeled scales, large eyes with round pupils. More information: Texas Snakes… Graham’s Crayfish Snake mainly eats crayfish. ×CÉO©…i=ì‡u{€4QºÀâ7=äí'Y¥ƒ}ƒý9rTwG×M6z÷C}¢É¶k A broken line of black pigment is found along the border of the first dorsal scale row and the ventral scales. The amphibians and reptiles of Louisiana. The Eponym Dictionary of Reptiles. Phylogeny: R. grahami and R. septemvittata appear paraphyletic in the tree shown in Burbrink et al. Graham's crayfish snake is a medium-sized, dull-colored, semiaquatic snake known from prairie streams, marshes, and ponds. A pocket guide to Kansas snakes, 2nd ed. Arkansas Snake Guide. Ecol Evol. This species can also be found hiding in crayfish burrows along stream banks. Texas Snakes. 1934. /* /Filter/FlateDecode/Index[125 820]/Length 49/Size 945/Type/XRef/W[1 1 1]>>stream editors of this guide it should copy everything, but if you're not, it Snakes of North America - Eastern and Central Regions, revised edition. 2012. H‰\’ÍjÃ0€ï~ McVay, John David; Bryan Carstens 2013. Not a commonly found snake, Graham's crayfish snake is a semi-aquatic snake found near the edge of ponds and streams of eastern Texas, as well as in various flooded pastures and bottomlands. Use requires permission. Part 1.-Serpents. Baird, S. F. and C. Girard. George Mason Univ. Regina grahamii, commonly known as Graham's crayfish snake, is a species of nonvenomous semiaquatic colubrid snake, which is endemic to North America. University of Texas Press, 544 pages, Williams, Avery A. Gï endstream endobj 946 0 obj <>/Metadata 123 0 R/Names 947 0 R/Pages 115 0 R/StructTreeRoot 125 0 R/Type/Catalog/ViewerPreferences<>>> endobj 947 0 obj <> endobj 948 0 obj >/PageWidthList<0 612.0>>>>>>/Resources<>/Font<>/ProcSet[/PDF/Text/ImageC]/XObject<>>>/Rotate 0/StructParents 0/TrimBox[0.0 0.0 612.0 792.0]/Type/Page>> endobj 949 0 obj <> endobj 950 0 obj <> endobj 951 0 obj <>stream Lawson, R. 1987. (ed.) Recorded food items for the non-venomous Regina grahamii are mainly crayfish, though salamanders, tadpoles and adult frogs, and snails have been found in the stomachs of this snake species. Conservation Status: The Graham's crayfish snake is not a protected species in Texas and can be legally collected with a hunting license. There may be another faint stripe down the center of the back. Ecology Letters 17 (1): 13–21 (published online 2013, in print 2014), DOI: 10.1111/ele.12168 -, Smith, Hobart M.;Leonard, Arthur B. Snakes of eastern North America. Texas A&M University Press, 421 pp. 2019. Regina grahamii, commonly known as Graham's crayfish snake, is a species of nonvenomous semiaquatic snake in the subfamily Natricinae of the family Colubridae. will only copy the licensed content. Type locality, “Rio Salado” = Salado Creek, Bell County, Texas (Schmidt, 1953:158); revised to Rio Salado, 4 miles from San Antonio, Bexar County, Texas by Cochran (1961:208). [CDATA[ */ javascript:prn(); /* ]]> */ [CDATA[ */ javascript:fav(); /* ]]> */, IUCN Red List - Regina grahamii - Least Concern, LC, National Center for Biotechnology Information,, map:, Colubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes), USA (Texas, W Mississippi, Louisiana, Oklahoma, SE/E Kansas, SE Nebraska, Iowa, Missouri, Arkansas, Illinois, W Alabama). Molecular studies of Thamnophiine snakes: 1. Legal Status: Graham's Crayfish Snake has no protected status in our region. Regina grahamii is viviparous or live-bearing, breeding at night in April and May, and giving birth to 6-25 young in August or September. editors of this guide it should copy everything, but if you're not, it Distributional records of reptiles and amphibians in Oklahoma. These snakes are medium sized at around 28-30 inches in length and will be a uniform brown, gray or tan color. Typically small snakes, adult Regina grahamii measure 46-71 cm (18-28 in), but occassionally reach lengths of 119 cm(47 in).