title: Monthly prevalences of Physaloptera retusa in naturally infected Yarrow's spiny lizard.
abstract: The gastrointestinal tracts of 167 of 489 (34%) Yarrow's spiny lizards (Sceloporus jarrovii jarrovii) collected in Pima County, Arizona (USA) from October 1967 through January 1970 were infected with Physaloptera retusa. Of the infected lizards, 88 (18%) had only larvae, 45 (9%) had larvae and adults and 32 (7%) had only adult nematodes. The ratio of larval nematodes to adults was approximately 8:1. Monthly prevalences varied from 71% in April 1969 to 10% in July 1969; seasonal patterns of infection were not observed.
authors.affiliation: Department of Biology, Penn State University, Sharon 16146.
authors.forename: C R
authors.initials: CR
authors.lastname: Bursey
authors.forename: S R
authors.initials: SR
authors.lastname: Goldberg
mesh_terms: D000818:Animals; D001130:Arizona / Q000453:epidemiology; D004064:Digestive System / Q000469:parasitology; D005260:Female; D007411:Intestinal Diseases, Parasitic / Q000453:epidemiology / Q000662:veterinary*; D007814:Larva / Q000302:isolation & purification; D008116:Lizards / Q000469:parasitology*; D008297:Male; D009349:Nematode Infections / Q000453:epidemiology / Q000662:veterinary*; D015995:Prevalence; D012621:Seasons; D013151:Spiruroidea / Q000302:isolation & purification*