GASTROINTESTINAL HELMINTHS OF THE CREVICE SPINY LIZARD, SCELOPORUS-POINSETTII (PHRYNOSOMATIDAE)

Twenty-one Sceloporus poinsettii from Texas and New Mexico were examin ed for helminths. Helminth faunas of the 2 lizard populations differed . The Texas population contained Skrjabinoptera phrynosoma (80% preval ence, mean intensity 27), Thubunaea iguanae (20% prevalence, mean inte nsity 1), and Oochoristica scelopori (30% prevalence, mean intensity 7 ). The New Mexico population contained Physaloptera retusa (55% preval ence, mean intensity 25) and Spauligodon giganticus (82% prevalence, m ean intensity 30). All represent new host records. Xeric conditions of the Texas S. poinsettii habitat may partly account for the absence of S. giganticus.