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Campydora demonstrans  
Photo Gallery Campydora demonstrans Cobb, 1920
Measurements Campydora demonstrans is the type species of Campydora, the sole genus in the family Campydoridae (Dorylaimida). To date, there have been two species, C. demonstrans Cobb, 1920 and C. balatonicus (Daday, 1894) Andrassy, 1954 (syn. Desmolaimus balatonicus Daday, 1894) described in Campydora. The status of C. balatonicus is uncertain, but C. demonstrans has been reported from Corfu, Greece (the type locality), from Spain, and from the United States. Thorne reported this species from Utah, while Orr and Dickerson recovered C. demonstrans from tallgrass prairie near Manhattan, Kansas. We have observed specimens in soil samples taken from Konza Prairie (near Manhattan, Kansas) and from Nine Mile Prairie (near Lincoln, Nebraska). The stomatal armature of Campydora consists of a dorsally-situated mural tooth, making it unique among dorylaim nematodes. In addition, this nematode has an unusual posterior esophageal bulb, with a valve-like chamber, possesses an excretory pore, and apparently lacks a prerectum. The systematic placement of this genus is problematic. |