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Physaloptera retusa (Nematoda, Physalopteridae) in naturally infected sagebrush lizards, Sceloporus graciosus (Iguanidae)

Journal of Wildlife Diseases 25(3): 425-429

Physaloptera retusa (Nematoda, Physalopteridae) in naturally infected sagebrush lizards, Sceloporus graciosus (Iguanidae)

Adult sagebrush lizards (S. graciosus) were collected from Windy Gap Trail, Los Angeles County, California, USA, during the month of May in 1986, 1987 and 1988; total numbers were 86 (comprising 53 males and 33 females), 36 (29 and 7), and 170 (91 and 79), respectively. 32 juveniles were collected in 1988 from the same locality. The stomach nematode P. retusa was found in 81 (28%) adults and 2 (6%) juveniles. Attached nematodes caused erosive inflammatory foci in the stomach mucosa. Early lesions were U-shaped, with a depth of approximately 50 micro m, and length 140 micro m. Degenerating gastric glands occurred in the adjacent mucosa. Fibrous scars, about 100 micro m in diameter, resulted from healed lesions; regenerating gastric glands occurred at the periphery. There were no externally visible signs of infection.

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Accession: 001909281

PMID: 2761018

DOI: 10.7589/0090-3558-25.3.425

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