Dj. Hunt, TUTUNEMA TUTU N. G., N. SP., A PRIMITIVE MEMBER OF THE HETHIDAE (NEMATODA, RHIGONEMATIDA, RANSOMNEMATOIDEA) PARASITIC IN A PAPUA-NEW-GUINEADIPLOPOD, Systematic parasitology, 39(1), 1998, pp. 71-80
Tutunema tutu n. g., n. sp. is described from the gut of a large spiro
bolid millipede (? Polyconoceras sp.) from Papua New Guinea and illust
rated with the aid of SEMs. The new genus belongs to the Hethidae and
has characters regarded as primitive when compared to Heth, the only o
ther genus in the family. Like Heth, the genus is sexually dimorphic,
female Tutunema tutu n. g., n. sp. differing from Heth spp. in having:
less developed, simpler, pseudolabia with unfringed margins; a single
, retrorse, unspined cervical collar; other cervical spination absent;
and three hypertrophied cuticular projections in the stoma. The males
lack a midventral sucker, but have the normal complement of 15 copula
tory papillae found in Heth.