The present study describes five new free-living nematode species and provides three
new species records of the family Comesomatidae (genera Cervonema Wieser, 1954, Dorylaimopsis
Ditlevsen, 1918, Hopperia Vitiello, 1969, and Kenyanema Muthumbi et al., 1997) from the continental
margin of New Zealand, Southwest Pacific. Dichotomous identification keys are provided for all known
species of Dorylaimopsis and Hopperia. Cervonema shiae Chen & Vincx, 2000 is recorded for the
first time outside the type locality (Beagle Channel, Chile). C. kaikouraensis sp. nov. is characterised
by amphideal fovea with 5.5 turns situated at 1.7 head diameter from anterior end, jointed outer labial
setae, equal in length to cephalic setae, sperm dimorphism, and 5-6 small pre-cloacal supplements.
C. multispira sp. nov. is characterised by amphideal fovea with 8.0-8.5 turns situated at 2.6-4.0 head
diameter from anterior end, cephalic setae 2-3 µm long, slightly shorter than outer labial setae, presence
of six uninucleated cells in males (potentially pseudocoelomocytes or supplementary excretory cells), 5
small pre-cloacal supplements, and strongly cuticularised, arcuate spicules with capitulum. C. proberti
sp. nov. is characterised by amphideal fovea with 5 turns and located at < 1 head diameter from anterior
end, cephalic setae 1.6-2.0 times longer than outer labial setae, and 8 small pre-cloacal supplements.
Dorylaimopsis nodderi sp. nov. is characterised by cuticle with lateral differentiation consisting of three
longitudinal rows of larger dots in the pharyngeal and caudal regions, two rows of larger dots in middle
region of body, and spicules with rounded ventral projection at one third of spicule length from distal
end, giving appearance of a joint. Hopperia ancora sp. nov. is characterised by short conical cephalic
setae, spicules with hook-like projection at distal end, gubernaculum with bent apophyses, and 11-13
pre-cloacal supplements. H. beaglense Chen & Vincx, 1998 is recorded from Kaikoura Canyon, the
first record of this species outside the type locality (Beagle Channel, Chile). Kenyanema monorchis
Muthumbi et al., 1997 is also recorded for the first time outside the type locality (Indian Ocean).