Body slightly curved ventrally, tapering anteriorly from the base of oesophagus and posteriorly behind vulva. Cuticle finely annulated, annules 1.2-1.3 um apart at mid body. Cephalic framework strongly sclerotized. Orifice of dorsal oesophageal gland 3 um from spear base.
Oesophageal glands overlap the intestine ventrally less than two body widths as a broad lobe.
2-3 annules wide. Reproductive system monodelphic, prodelphic, outstretched and may extend up to oesophageal gland lobe. Oocytes arranged in a single row except at the anterior end. Spermatheca spherical, filled with sperms. Phasmids in anterior half of the tail.