Neoterranova		Contents		Rev: 08/24/2024
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Neoterranova Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Anisakidae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

Chromadorea

Chromadoria

Rhabditida

Spirurina

Ascaridoidea

                         Anisakidae

                          Neoterranova Moravec & Justine, 2020

Nematodes recovered from three species of sharks off the coast of New Caledonia had characteristics previously described for the anisakid nematode genus Terranova Leiper & Atkinson, 1914..  However,  since the type species of thet genus has been designated species inquirenda, the genus Terranova is no longer considered valid.  Based on their characteristics, the nematodes were assigned to two new genera: Euterranova and Neoterranova. The new genera differ mainly in labial structures. (Moravec and Justine, 2020).

Type species of the genus Neoterranova is N. scoliodontus (Baylis, 1931) Moravec & Justine, 2020

    Synonyms:
     

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Morphology and Anatomy:

• Rather large nematodes with slightly transversely striated cuticle.
• Dorsal lip with 2 double papillae, each subventral lip with 1 double papilla, 1 single papilla and lateral amphid.
• Lips with broad dentigerous ridges formed by rows of even-sized denticles; prominent teeth absent.
• Each lip with anterior margin formed into 2 widely separated lobes curved towards median line and median furrow or lobes moderately developed or indistinct, provided with continuous row of even-sized denticles extending along entire inner margin of lips. Interlabia absent.
• Narrow lateral alae present or absent.
• Deirids well developed, near nerve ring level.
• Esophagus long and narrow. Ventriculus elongate, without ventricular appendix. Intestinal caecum present.
• Excretory pore between base of subventral lips.
• Tail conical; tip without ornamentation.
• Parasites of sharks and reptiles.

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Distribution:

Described from three species of sharks, Galeocerdo cuvier, Triaenodon obesus (both Carcharhinidae, Carcharhiniformes) and Stegostoma fasciatum (Stegostomatidae, Orectolobiformes) from New Caledonian waters (Moravec and Justine, 2020).

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Feeding:

Parasites of sharks and reptiles: elasmobranchs, teleosts, crocodilians and snakes.

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Biology and Ecology:

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Life Cycle:

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Ecosystem Functions and Services:

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Management:

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References:

Moravec, F. and Justine, J-L.. 2020. Erection of Euterranova n. gen. and Neoterranova 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

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Copyright © 1999 by Howard Ferris.
Revised: August 24, 2024.