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a group of snakes of the family Colubridae, sometimes classified with the subfamily Boiginae. Body length, 50 cm-3 m. Large grooved venom-conducting fangs are located in the rear upper jaw. (Grouped with some other snakes, they are often called opisthoglyphs.)

There are approximately 70 genera (over 300 species), widespread on all the continents but concentrated in the tropics and subtropics. The poison glands are weakly developed, and the bite is usually fatal only to small animals. There have been a few cases of human beings dying from bites of the African boomslang (Dispholidus typus), which lives in South Africa. Humans can also be poisoned by bites of African arboreal snakes of the genus Thelotornis and some other species.

Most colubrids lay eggs, but many species are ovoviviparous. The six species found in the USSR are harmless to man: Taphrometoron lineolatus, a species of Psammophis, Boiga trigona-tum, Malpolon monspessulanus, and two species of Telescopus.


Zhizn’ zhivotnykh, vol. 4, part 2. Moscow, 1969.
References in periodicals archive ?
Relative mass of clutch in Pituophis is typical of that for other oviparous colubrids (0.
2002) studied a large-bodied Colubrid (Pituophis ruthveni) from Louisiana and Texas using radio telemetry and reported a growth rate of 12.
The purpose of this study was to examine 6 species of colubrid snakes from California for helminths: the glossy snake, Arizona elegans; western shovelnose snake, Chionactis occipitalis; coachwhip, Masticophis flagellum; striped racer, Masticophis lateralis; spotted leafnose snake, Phyllorhynchus decurtatus; and longnose snake, Rhinocheilus lecontei.
Relationship of Temperature to Activity Patterns-- Detailed studies on thermal ecology of snakes have dealt almost entirely with diurnal snakes such as Thamnophis (Scott, 1978; Peterson, 1982; Stevenson, 1983; Gregory, 1990), Coluber, and Masticophis (Hammerson, 1979), or are based on studies of colubrid or viperid taxa (Jacob and Painter, 1980; Sanders and Jacob, 1981; Graves and Duvall, 1987; Goode and Duvall, 1989).
Coelomic endoparasites in four species of colubrid snakes, Drymobius margaritiferus, Masticophis mentovarius, Salvadora mexicana and Trimorphodon tau from Mexico.
A Pliocene colubrid snake (Reptilia: Colubridae) from west-central Nevada.
virgatus), six species of colubrid snakes (Gyalopion quadrangulare, Oxybelis aeneus, Senticolis triaspis, Tantilla wilcoxi, T.
Comparative ecology of two colubrid snakes, Masticophis taeniatus taeniatus and Pituophis melanoleucus deserticola, in northern Utah.
Of importance are the recent discoveries of an emydid--like turtle, a terrestrial colubrid snake, and partial teeth of at least three different land mammals.