Harpagonchus, Platonova & Potin, 1972

Venekey, Virag, Gheller, Paula F., Kandratavicius, Noelia, Cunha, Beatriz Pereira, Vilas-Boas, Ana Carolina, Fonseca, Gustavo & Maria, Tatiana F., 2019, The state of the art of Chromadoridae (Nematoda, Chromadorida): a historical review, diagnoses and comments about valid and dubious genera and a list of valid species, Zootaxa 4578 (1), pp. 1-67 : 32-33

Genus Harpagonchus, Platonova & Potin, 1972

The genus Harpagonchus ( Figure 4 ) was established by Platonova & Potin (1972) when H. averincevi and H. simillis were described. All species of this genus were collected from the sub Antarctic and Antarctic polychaete worms of the species Aglaophamus macroura ( Schmarda, 1861) (Nephtydae) .

Diagnosis (modified from Decraener & Smol 2006 and Tchesunov 2014): Cuticle homogenous without lateral differentiation. Amphideal fovea unknown. Buccal cavity armed with three motile mandibles with hooks. Pharynx posteriorly widened but not forming a true terminal bulb. Cup-shaped midventral precloacal supplementary organs present in males.

Number of valid species: 2.

Genus Harpagonchus, Platonova & Potin, 1972

VALID SPECIES

1. Harpagonchus averincevi Platonova & Potin, 1972 ( Antarctica)

2. Harpagonchus similis Platonova & Potin, 1972 ( Antarctica)

Figures

FIGURE 4. Schematic representation of Harpagonchinae and Spilipherinae genera. The drawings aim to show head with buccal cavity and amphideal fovea and cuticle ornamentation (general pattern). For Harpagonchus, Harpagonchoides and Acantholaimus the copulatory apparatus is also presented. In all drawings the right side is the dorsal side of the nematode.