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Any of several swift teiid lizards, especially Aspidoscelis sexlineata (syn. Cnemidophorus sexlineatus) of the United States and northern Mexico, having a brownish body with longitudinal light-colored stripes.


(ˈreɪsˌrʌn ər)

a whiptail lizard, Cnemidophorus sexlineatus, common in the eastern and central U.S., that runs with great speed.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.racerunner - very swift lizard of eastern and central United Statesracerunner - very swift lizard of eastern and central United States
whiptail, whiptail lizard - any of numerous very agile and alert New World lizards
References in periodicals archive ?
Six-lined racerunners zip around and appear impervious to the heat.
Racerunners occur throughout most of Nebraska and are abundant in open, sparsely vegetated habitats with sandy soil (Ballinger and Jones, 1985; Ballinger et al.
Diet of adult and juvenile six-lined racerunners, Cnemidophorus sexlineatus (sauria: Teiidae).
Diet of the Texas yellow-faced racerunner, Cnemidophorus sexlineatus stephensi (Sauria: Teiidae) in southern Texas.
The tegus and whiptail lizards (family Teiidae) are mainly South American, but they are represented in North America by eleven species of whiptail lizards in the United States, three of them desert-living species known as the racerunners (Cnemidopho-rus exsanguis, C.
Similar studies conducted in Kansas and Oklahoma report that grasshoppers, spiders, and various types of planthoppers constitute the bulk of the diet of racerunners (Fitch 1958; Hardy 1962; Paulissen 1987a).
Ecological observations on a Texas population of six-lined racerunners, Cnemidophorus sexlineatus (Reptilia, Lacertilia, Teiidae).
One feature of color in the population of six-lined racerunners in Tamaulipas that exceeds the diagnosis of this subspecies is development of the vertebral stripe.
Racerunners have elongate bodies (SVL to 6-9 cm), long tails (about twice the length of the body), and stout arms and legs.
1), showed that these racerunners also possessed a striking yellow coloration on the face and neck.
The seasonal reproductive, fat body and adrenal cycles of male six-lined racerunners (Cnemidophorus sexlineatus) in central Oklahoma.
Fifty-one six-lined racerunners, Cnemidophorus sexlineatus, from 17 counties of Arkansas were examined for parasites.