Genus Halichoanolaimus De Man 1886

Diagnosis. (modified from Tchesunov (2014)) Cuticle with lateral differentiation in the form of larger and more widely spaced punctations. All anterior sensilla papilliform. Cuticularised rhabdions of anterior buccal cavity with pointed teeth (denticles) at posterior extremity. Pharynx without anterior or posterior bulb. Intestine of adult stages blind. Precloacal supplements papilliform or setiform (except in H. anisospermus n. sp.). Tail with conical proximal portion and often elongated cylindrical distal portion.

Synonym. Smalsundia Allgén, 1929 .

Remarks. A key to males of all 22 valid Halichoanolaimus species was provided by Zograf et al. (2015).