is placed in the genus Hexamermis to possess a horn-shaped vagina, amphids separated from the lateral cephalic papillae (Rubstov, 1978).
distinctus parasite of scarabaeid insect can be separated by the small amphids, the arrangement of the genital papillae in three double rows, the ventral row with four pairs and four single preanal papillae, and with eight pairs and two singles postanal papillae.
Hexamermis glossinae, a parasite of tse-tse fly, differs from all other species of Hexamermis in the small amphids located on the lateral head papillae; spicules slightly curved, roughly equal in length to the body diameter at the cloaca, male with three double rows of genital papillae; vagina straight.
Oral opening round, two lateral amphids
. Stoma (vestibule) cylindrical, elongated, dilated anteriorly.
However, it is not located in a sensillum, but in the amphidial nerve bundle-with other sensory dendrites that continue anteriorly to their sensory processes in the amphid. Like most sensory dendritic processes of nematodes and other animals, it has an intimate association with a sheath cell.
Although enclosed by the amphid sheath cell such that there is no aqueous connection to the exterior, they are chemosensory to lipid-soluble, volatile odorants (Bargmann and Horvitz, 1991; Bargmann et al., 1993; Troemel et al., 1997).
Two cephalic papillae are at each side, and amphids
large with Deirids absent.
Two pair of amphids
were located at the terminal end of the tail, one pair positioned slightly ventral and the other slightly dorsal.
Like all nematodes, Stronglyloides larvae possess sensory structures called amphids. In C.
Amphids in Strongyloides stercoralis and other parasitic nematodes.
stirrup-shaped opening at level of cephalic depression with aperture more than half as wide as lip region.
cup shaped, aperture occupying about as wide as half of the corresponding body diameter.