Folia Parasitologica 50[1] 49-55 (2003) | DOI: 10.14411/fp.2003.009

Mormyrogyrodactylus gemini gen. et sp. n. (Monogenea: Gyrodactylidae), a new gyrodactylid from Marcusenius macrolepidotus (Mormyridae) from South Africa

Wilmien J. Luus-Powell1, Sevid N. Mashego2, Lotfi F. Khalil1
1 School of Molecular and Life Sciences, University of the North, P/Bag X1106, Sovenga, 0727, South Africa
2 Department of Zoology, P.O. Box 524, Rand Afrikaans University, South Africa

Mormyrogyrodactylus gemini gen. et sp. n. (Gyrodactylidea: Gyrodactylidae), a viviparous monogenean is described from the skin and fins of Marcusenius macrolepidotus (Peters) from South Africa. This new genus is unique in having a large cup-shaped cirrus armed with one large needle-like spine and numerous small hair-like spinelets. A peduncular bar is present. The haptor is clearly demarcated from the body and situated on a small pedicle. The haptor has one pair of large anchors, a ventral bar complex, a small dorsal bar and 16 evenly spaced marginal hooks. The ventral bar complex consists of three parts: an inverted U-shaped piece with two semi-attached bars, each bar consisting of a base and an extension. An accessory inverted T-shaped sclerite is present on the posterior rim of the haptor. Mormyrogyrodactylus is the fifth genus of the Gyrodactylidae to be described from Africa.

Keywords: Monogenea, Gyrodactylidae, Mormyrogyrodactylus, Mormyridae, Marcusenius macrolepidotus, South Africa

Received: November 22, 2001; Accepted: July 12, 2002; Published: March 1, 2003  Show citation

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Luus-Powell, W.J., Mashego, S.N., & Khalil, L.F. (2003). Mormyrogyrodactylus gemini gen. et sp. n. (Monogenea: Gyrodactylidae), a new gyrodactylid from Marcusenius macrolepidotus (Mormyridae) from South Africa. Folia Parasitologica, 50(1), 49-55. doi: 10.14411/fp.2003.009
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