Family Cyatholaimidae
Revised
07/13/24
Nematoda
Chromadorea
Chromadoria
Chromadorida
Chromadorina
Chromadoroidea
Cyatholaimidae Filipjev, 1918 (also sometimes attributed to Micoletsky, 1922)
- cuticle with transverse rows of punctations; lateral punctations may be
larger, irregular or arranged in longitudinal rows.
- inner labial sensilla usually setiform; six outer labial sensilla and
four cephalic sensilla jointed in a single circle of ten setae
- stoma shallow, with large dorsal tooth and two small subventral teeth
- Cheilostome supported by 12 cutucular folds (rugae)
- amphids multispiral
- esophago-intestinal valve prominent, usually without terminal bulb
- female didelphicamphidelphic with anterior and posterior antidromously
reflexed gonads always on different sides of the intestine
- male dinorchic, testes on opposite sides of the intestine, rarely
monorchic; with precloacal supplements present or absent.
- free-living, primarily marine nematodes often reported from coastal
waters but some species from brackish and freshwater
Five subfamilies, generally differentiated by arrangement of anterior
sensilla, armament of the stoma, form of the cuticular ornamentation, presence
or absence of pre-cloacal supplements and general morphology:
Cyatholaiminae Filipjev, 1918
Nyctonematinae Bussau, 1993
Paracanthonchinae Deconinck, 1965
Pomponematinae Gerlach & Riemann, 1973
Xenocyatholaiminae Gerlach & Riemann, 1973
References:
Bongers, T. De Nematoden van Nederland.
Datta, T.K., Miljutin, D.M., Chakraborty, S.M. Mohapatra, A.
2016. Cyathoshiva amaleshi gen. n. sp. n. (Nematoda: Cyatholaimidae) from the
coast of India. Zootaxa 4126:577-586.
Goodey, T and J.B. Goodey, 1963. Soil and Freshwater Nematodes.
Methuen. London
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