Halaphanolaimus Southern, 1914

Ürkmez, Derya & Brennan, Michael L., 2013, A new species of Halaphanolaimus (Nematoda: Leptolaimidae) from the southern Black Sea (Turkey) with a modified key for species identification, Zootaxa 3691 (2), pp. 220-228 : 221

Halaphanolaimus Southern, 1914

Diagnosis. Halaphanolaimus is a genus of the family Leptolaimidae that belongs to the Chromadorida. It was described by Southern (1914) as “ Anguillulidae as small size with coarsely striated cuticle. Head small, with posterior circular groove, and single ring of four submedian hairs. Lateral sense-organs are simple spirals. Pharynx narrow with posterior bulb. Lateral line linear, without structure. Spicules paired, with simple accessory pieces. A variable number of ventral tubular chitinous gland-ducts present in both sexes, some on the neck, others in front of the anus.”

Type species. Halaphanolaimus pellucidus Southern, 1914

Relationships. Halaphanolaimus resembles Leptolaimus in general appearance, males always having tubular precloacal supplements, elongated and cuticularised stoma, and circular amphids with a posterior break. Halaphanolaimus can be distinguished from Leptolaimus by having tubular precloacal supplements extending to the neck or pharyngeal region (Platt & Warwick, 1988).