Great Basin Naturalist


Dentostomlla translucida Schulz & Krepkorgorskaja (1932) was found in the small intestine of the Mongolian gerbil, Meriones unguicilatus Milne-Edwards, housed at the small animal center at Brigham Young University, Provo, Utah. Pertinent taxonomical characteristics were studied to differentiate D. translucida from D. kuntzi (Myers 1961) D. grundmanni (Chitwood 1963), D. legerae (Quentin 1975), and D. karachiensis (Bilqees 1978). Dentostomella translucida is distinguished by a large, evenly proportioned body, the presence of five unequaled teeth per esophageal sector, and a spicule tip bifid in ventral view in males. This project included the analysis of the structure and histochemistry of the adult nematode cuticle layers and egg-shell layers through the use of light and electron microscopy. Embryonation of D. translucida eggs was attempted to recover various larval stages. Additional information on D. translucida includes the presence of six cuticle layers, one exogenous with three endogenous egg-shell layers, and an egg operculum similar to that of D. kuntzi.