Klossinemella		Contents		Rev: 01/07/2026
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Klossinemella Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Atractidae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

Chromadorea

Chromadoria

Rhabditida

Spirurina

Cosmocercoidea

Atractidae

                          Klossinemella Costa, 1961

Type species of the genus:  Klossinemella iheringi (Travassos, Artigas & Pereira, 1928) Costa, 1961

    Synonyms:
     

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Morphology and Anatomy:

Morphology of somewhat complicated structure of cephalic capsule difficult to study by light microscope

• Oral opening oval, laterally elongate with dorsal and ventral bi-lobed lip formations separated by a groove.
• Inner rim of each lip formation with 3 conical processes; outer margin of formations with 2 sclerotized Y-shaped pieces
• Amphids on each side of mouth opening with papillae posterior to each
• Outer circles of large lobe-like submedian cephalic papillae and inner circle of fingerlike papillae
• Esophagus with cylindrial corpus, isthmus with constriction,  and poorly-differentiated bulb

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Distribution:

Klossinemella Costa, 1961 is one of six genera of the cosmocercoid family Atractidae which include species parasitizing fishes (Moravec et al., 2025)

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Feeding:

Food Sources and Feeding strategies for the genus Klossinemella

Parasites of the digective tract of their hosts: freshwater fish and turtles.

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Biology and Ecology:

Moravec and Vernon (1997) observed the pyloric caeae and upper centimeters of intesting packed with large numbers of Klossinemella iheringi then the remained of the intestinal tract packed  with another atractid nematode, Rondonia rondoni; the two species clearly separated.

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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., Thatcher, V.E., 1997. New data on the morphology and systematic status of Klossinemella iheringi (Nematoda: Atractidae) from an Amazonian serrasalmid fish. Folia Parasitologica 44:48-54

Moravec, F., Salgado-Maldonado, G., Gonzalez-Solis, D. 2025. Some nematodes from fishes of the Lacantan River in the Lacandon rain forest of Chiapas State, southern Mexico, including Cucullanus potamarii sp. n. (Cucullanidae) from the endemic catfish Potamarius usumacintae (Ariidae). Folia Parasitologica 2025, 72: 020 doi: 10.14411/fp.2025.020

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Copyright © 1999 by Howard Ferris.
Revised: January 07, 2026.