Moravecnema

Moravecnema is a genus of parasitic nematodes, belonging to the family Cystidicolidae. Species of Moravecnema are parasitic as adults in the gastrointestinal tract of fish. [1][2] According to the World Register of Marine Species, the genus currently (2019) includes a single species, Moravecnema segonzaci,[2] which is a parasite in a deep-sea fish.

Moravecnema
Moravecnema segonzaci, male
Scientific classification
Kingdom: Animalia
Phylum: Nematoda
Class: Chromadorea
Order: Rhabditida
Family: Cystidicolidae
Genus: Moravecnema
Justine, Cassone & Petter, 2002
Species:
M. segonzaci
Binomial name
Moravecnema segonzaci
Justine, Cassone & Petter, 2002

Description

The genus Moravecnema is characterised by a dorsoventrally elongated oral opening, rudimentary pseudolabia, and four pairs of precloacal and six pairs of postcloacal caudal papillae in the male.[1]

Etymology

The name of the genus Moravecnema was created in the honour of Czech parasitologist František Moravec, "in recognition to his outstanding work on systematics of fish nematodes".[1] The gender is neuter. The specific epithet segonzaci refers to Michel Segonzac, from Ifremer, France, who collected the specimens.[1]

Hosts and localities
An undetermined specimen of the genus Pachychara photographed in deep-sea; a fish of this genus is the host of Moravecnema segonzaci

Moravecnema segonzaci Justine, Cassone & Petter, 2002 is a parasite of the intestine of the eelpout Pachycara thermophilum (Zoarcidae) from the hydrothermal sites Logatchev and Snake Pit-Moose of the Mid-Atlantic Ridge, at depths of 3,000-3,510 m.[1] The fish were caught by slurp gun by the submarine DSV Alvin. The fish is a deep sea fish and this nematode is one of the few species recorded from deep-sea fish.[3]

References
  1. Justine, Jean-Lou; Cassone, Jimmy; Petter, Annie (2002). "Moravecnema segonzaci gen. et sp. n. (Nematoda: Cystidicolidae) from Pachycara thermophilum (Zoarcidae), a deep-sea hydrothermal vent fish from the Mid-Atlantic Ridge". Folia Parasitologica. 49 (4): 299–303. doi:10.14411/fp.2002.055. ISSN 0015-5683. PMID 12641204.
  2. Bezerra, T.N.; Decraemer, W.; Eisendle-Flöckner, U.; Hodda, M.; Holovachov, O.; Leduc, D.; Miljutin, D.; Mokievsky, V.; Peña Santiago, R.; Sharma, J.; Smol, N.; Tchesunov, A.; Venekey, V.; Zeng, Z.; Vanreusel, A. (2019). Nemys: World Database of Nematodes. MoravecnemaJustine, Cassone & Petter, 2002. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=390864 on 2019-01-05
  3. Buron, Isaure de; Morand, Serge (2004). "Deep-sea hydrothermal vent parasites: why do we not find more?". Parasitology. 128 (1): 1–6. doi:10.1017/S0031182003004347. ISSN 0031-1820. PMID 15002897.
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