Parapinnanema Inglis, 1969

Datta, Tridip Kumar & Al-Helal, Md. Abdullah, 2023, Review of Euchromadorinae (Nematoda: Chromadorida) with description of a new species of Trochamus Boucher & De Bovée, 1971 from the Sundarban, India, Zootaxa 5278 (3), pp. 493-510 : 497

Parapinnanema Inglis, 1969 (emended after Inglis 1969, Gourbault & Vincx 1994 and Semprucci & Sorensen 2014)

Thick cuticle on the pharyngeal region. Amphideal fovea with surrounding fringe of cuticle. Six outer labial and four cephalic setae. Cuticle without prominent lateral differentiation. Each annule is consist of small stick like projections at either side where one side projection is with forked head and other side is lacking such or comb like. Interannular ring is consist of interlocking pattern of forked head of one annule to the teeth of combed head of another annule. This complex network is covered by smooth epicuticle. Buccal cavity conical with one dorsal and two subventral plates; one large pointed tooth on the dorsal plate and three denticles plus a ventral tooth on each subventral plate. Tail conico-cylindrical. Raised precloacal and caudal modifications of the cuticle in males. Gubernaculum with L-shaped lateral piece. Elongated vulva, vagina opening wide, an internal double sphincter around the uterine chamber.

Type species: P. wilsoni Inglis, 1969

List of valid species:

P. alii ( Murphy, 1965) Warwick & Coles, 1975

P. bableti Gourbault & Vincx, 1994

P. colesi ( Inglis, 1968) Warwick & Coles, 1975

P. harveyi Warwick & Coles, 1975

P. hawaiiensis Semprucci & Sorensen, 2014

P. imbricata Belogurov, Belogurova & Smollanko, 1985

P. mexicanum ( Jensen, 1985) Gourbault & Vincx, 1994

P. pectinatum ( Wieser & Hopper, 1967) Warwick & Coles, 1975

P. rhipsoides Gourbault & Vincx, 1994

P. ritae Gourbault & Vincx, 1994

P. shirleyae ( Coles, 1965) Warwick & Coles, 1975

P. wilsoni Inglis, 1969