Neoterranova scoliodontis

Morphology and Anatomy:

Large, whitish nematodes, transversely striated cuticle.
Maximum width near middle of body.
Lips almost equal in size; anterior margin of each lip as 2 widely-separated lobes curved towards median line and median
furrow, provided with continuous row of fine teeth; dorsal lip with 2 subdorsal double papillae; each ventrolateral lip with 1 double
subventral papilla; interlabia absent.
1 small single papilla and minute amphid situated laterally
Lateral alae indistinct, reduced to lateral grooves;
Esophagus long, narrow. Ventriculus (glandular region) elongate,.2.5 times shorter than esophagus, with anterior and posterior ends expanded.
Deirids well-developed, located a short distance posterior to nerve ring
Caecum long, extending anterior to ventriculus. Excretory pore located ventrally between ventrolateral lips
Tail of both sexes conical.

Male:

Spicules equal, 3.48-3.85 mm long, distal end of each with transparent conical membrane
26-29 pairs of small subventral papillae present,
Median pre-anal papilla on anterior cloacal lip poorly developed.
Well-developed plectane
Ventral precloacal surface with modified annules forming 2 ventrolateral fields; each annule with row of minute longitudinal supports
Tail 598-666 um long

Ref: Moravec and Justine, 2006

Female:

Vulva at 38-41% of body length; vagina directed posteriorly from vulva.
Eggs in uterus spherical, thin-walled, smooth,
Tail 802-816 um long.

Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

Distribution:

Economic Importance:

Hosts:

Tiger sharks, Galeocerdo cuvier and othe elasmobranchs (Moravec and Justine, 2006).

References:

Baylis, H.A.. 1931. Some Ascaridae from Queensland. Annals and Magazine of Natural History, Series, 10(8): 95-102.

Johnston, T.H., Mawson, P.M. PM. 1945. Parasitic nematodes. British and New Zealand Antarctic Research Expedition 1929-1931. Reports, Series B (Zoology and Botany), 5: 73-159.

Moravec, F. and Justine, J-L.. 2020. Erection of Euterranova n. gen. and Neoerranova n. gen. (Nematoda, Anisakidae), with the description of E. dentiduplicata n. sp. and new records of two other anisakid nematodes from sharks off New Caledonia. Parasite 27:58; doi:10.1051/parasite/2020053

Moravec, F, Justine, J-L. 2006. Three nematode species from elasmobranchs off New Caledonia. Systematic Parasitology, 64: 131-145.