Helminths deposited in the United States National Parasite Collection (USNPC) for six species of colubrid snakes from California.
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.
One hundred fifty-nine individuals of six colubrid snake species: Arizona elegans (n = 43, mean snout-vent length [SVL] = 589 mm [+ or -] 205 SD, range = 238-930 mm), Chionactis occipitalis (n = 31, SVL = 258 mm [+ or -] 20 SD, range = 222-300 mm), Masticophis flagellum (n = 12, SVL = 861 mm [+ or -] 118 SD, range 697-1104 mm), Masticophis lateralis (n = 14, SVL = 765 mm [+ or 1] 136 SD, range 520-963 mm), Phyllorhynchus decurtatus (n = 26, SVL = 357 mm [+ or -]47 SD, range = 242-469 mm), and Rhinocheilus lecontei (n = 33, SVL = 590 mm [+ or -] 93 SD, range = 362-743 mm) were borrowed from the herpetology collection of the Natural History Museum of Los Angeles County (LACM), Los Angeles, California (accession numbers, Appendix 1).
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).
Other predominantly nocturnal colubrid snakes, such as glossy snakes (Arizona elegans), long-nosed snakes (Rhinochelius lecontei), and lyresnakes (Trimorphodon) have been observed actively moving on the surface under cold, windy conditions.
Comparative histological studies on Duvernoy's gland of colubrid snakes.
If other colubrid groups are examined, the conclusions regarding a correlation between labial number and snout length seem to exist in some, usually at the interspecific level, but are indiscernible in others.
1) More than 1000 specimens of the polytypic South American colubrid snake, Liophis poecilogyrus (Wied), were examined in order to redescribe the species, update its synonymy, and understand aspects of ontogenetic and geographic variation.
sublineatus displays geographic variational parallels to the sympatric colubrid snake, Liophis miliaris.
Coelomic metazoan endoparasites of 15 colubrid
and two elapid snake species from Costa Rica.
Envenomation by neotropical opisthoglyphous colubrid Thamnodynastes cf.
Neurotoxic, hemorrhagic and proteolytic activities of Duvernoy's gland secretion from Venezuelan opisthogiyphous colubrid snakes in mice.