Endeolophos Boucher, 1976

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 : 23

Genus Endeolophos Boucher, 1976

The genus Endeolophos was erected by Boucher (1976) to accommodate three species originally described as Nygmatonchus : E. fossiferus ( Wieser, 1954) , E. minutus ( Gerlach, 1967) and E. spinosus (Gerlach, 1957) . Blome (1982) described E. subterraneus and more recently Holovachov et al. (2011) described a new species, E. skeneae , and also provided comparisons of diagnostic characters in different species and populations of the genus. According to these authors, species within this genus can be distinguished by body measurements and ratios, as well as shape of the spicule tip and presence and shape of gubernaculum apophysis.

Diagnosis (modified from Holovachov et al. 2011 and Tchesunov 2014): Cuticle with homogenous ornamentation along the body: each annule with very fine and numerous longitudinal ridges. Lateral differentiation in shape of a subcuticular discontinuity in cuticular pattern along the lateral sectors of the body. Six outer labial sensilla and four cephalic sensilla setiform arranged in a single circle. Amphideal fovea as a transversal slit. Buccal cavity with dorsal tooth and two tiny ventrosublateral teeth. No posterior pharyngeal bulb developed. Spicules well developed. Gubernaculum slightly arcuate, plate-like, with or without apophysis and telamons absent.

Number of valid species: 5.

Genus Endeolophos Boucher, 1976

VALID SPECIES

1. Endeolophus fossiferus ( Wieser, 1954) Boucher, 1976 ( Chile)

Syn. Nygmatonchus fossiferus Wieser, 1954

2. Endeolophus minutus ( Gerlach, 1967) Boucher, 1976 (Red Sea)

Syn. Nygmatonchus minutus Gerlach, 1967

3. Endeolophus skeneae Holovachov, Bostrom, Reid, Warén & Schander, 2011 (North-east East Atlantic) 4. Endeolophus spinosus (Gerlach, 1957) Boucher, 1976 ( Brazil)

Syn. Neochromadora bicoronata Wieser, 1959

Nygmatonchus bicoronatus (Wieser, 1959) Inglis, 1969

Nygmatonchus spinosus (Gerlach, 1957) Riemann & Rachor (1973)

Prochromadorella spinosa Gerlach, 1957

5. Endeolophus subterraneus Blome, 1982 (North Sea)