Halichoanolaimus de Man, 1886

Leduc, Daniel, 2020, New and known Halichoanolaimus de Man, 1886 species (Nematoda: Selachinematidae) from New Zealand’s continental margin, European Journal of Taxonomy 726, pp. 59-82 : 61

Genus Halichoanolaimus de Man, 1886

Smalsundia Allgén, 1929: 454 .

Type species

Halichoanolaimus robustus (Bastian, 1865) 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 usually papilliform. Cuticularized rhabdions of anterior buccal cavity (gymnostome) with pointed teeth (denticles) at posterior extremity; posterior portion of buccal cavity (stegostome) surrounded by three Y-shaped pairs of cuticularized rhabdions. Pharynx without anterior or posterior bulb. Intestine of adult stages blind. Precloacal supplements usually papilliform or setiform. Tail with cylindrical proximal portion and often elongated cylindrical distal portion.

Remarks

A key to males of all 22 valid species of Halichoanolaimus was provided by Zograf et al. (2015). An additional species was subsequently described by Leduc & Zhao (2016).