Monhystrella Cobb 1918
Creators
Description
Genus Monhystrella Cobb, 1918
Diagnosis (modified from Fonseca & Decraemer 2008)
Short body length (<0.8 mm). Small somatic setae often present. Six outer labial and four cephalic sensillae usually setiform. Buccal cavity tubiform, funnel-shaped or conoid, often with cuticularised walls; denticles usually present, but difficult to observe in small species. Circular amphideal fovea usually 1.5–2.0 or more head diameters from anterior end. Posterior part of pharynx enlarged forming a single or double bulb without valves. Secretory-excretory system usually absent. Female reproductive system short to medium sized; vulva near mid-body. Spicules mostly arcuate and short (<2 abd). Tail usually with ventrally curved conical anterior portion and dorsally curved cylindrical filiform posterior portion. Spinneret a long and slender cone or cylinder.
*Dorso–caudal apophyses present but very thin and may be difficult to observe. **From re–description by Jensen (1992)
RemarksThe taxonomy of all marine Monhystrella species was revised by Fonseca & Decraemer (2008), who provided a detailed diagnosis of the genus and a key to all thirteen valid marine species; no new marine species have been described since.
Notes
Files
Files
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Monhysteridae
- Genus
- Monhystrella
- Kingdom
- Animalia
- Order
- Monhysterida
- Phylum
- Nematoda
- Scientific name authorship
- Cobb
- Taxon rank
- genus
- Taxonomic concept label
- Monhystrella Cobb, 1918 sec. Leduc, 2015
References
- Fonseca G. & Decraemer W. 2008. State of the art of the free-living marine Monhysteridae. Journal of the Marine Biological Association of the United Kingdom 88: 1371 - 1390. http: // dx. doi. org / 10.1017 / S 0025315408001719
- Jensen P. 1992. Predatory nematodes from the deep sea: description of species from the Norwegian Sea, diversity of feeding types and geographical distribution. Cahiers de Biologie Marine 33: 1 - 23.
- Gourbault N. & Boucher G. 1981. Nematodes abyssaux (Campagne Walda du N / O " Jean Charcot ") III. Une sous-famille et six especes nouvelles de Sphaerolaimidae. Bulletin du Museum national d'Histoire naturelle de Paris 4: 1035 - 1052.
- Fadeeva N. P. 1983. A contribution to the family Sphaerolaimidae Filipjev, 1918 (Nematoda, Monhysterida) from the Sea of Japan. Zoologichesky Zhurnal 9: 1321 - 1333.