Macrogyrodactylus karibae Douellou et Chishawa 1995

• Main Authors: Truter, Marliese, Acosta, Aline A., Weyl, Olaf L. F., Smit, and Nico J.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2021
• Subjects: Biodiversity; Taxonomy; Animalia; Platyhelminthes; Monogenea; Gyrodactylidea; Gyrodactylidae; Macrogyrodactylus; Macrogyrodactylus karibae; Sickle; Iceland
• Online Access: https://zenodo.org/record/8180303; https://doi.org/10.5281/zenodo.8180303

Macrogyrodactylus karibae Douëllou et Chishawa, 1995 Figs. 2G–I, 3C,D (iii); Table 6 T y p e h o s t: Clarias gariepinus (Burchell) (Siluriformes: Clariidae). Ty p e l o c a l i t y: Lake Kariba, Zimbabwe. O t h e r r e c o r d s: Clarias gariepinus. South Africa – Khalil and Mashego (1998), Olivier et al. (2009), Matla (2012); Zimbabwe – Douëllou and Chishawa (1995), Barson et al. (2008, 2010). L o c a l i t i e s (p r e s e n t s t u d y): SouthAfrica: KuShokwe Pan and Usuthu River, Ndumo Game Reserve, KwaZulu-Natal Province; Zambia: Barotse floodplain, Zambezi River, Northwestern Province. S i t e o f i n f e c t i o n: Skin and gills. Abbreviations: IC –Iceland, KY – Kenya, M. – Macrogyrodactylus, SN – Senegal, SA – South Africa, ZI – Zimbabwe, ZM – Zambia. Vo u c h e r m a t e r i a l: Four voucher specimens deposited in, NMB P 818–821. R e p r e s e n t a t i v e D N A s e q u e n c e s: 715–741 bp long sequence of the ITS1-5.8S-ITS2 region of the rRNA gene of two isolates. GenBank accession numbers: MZ869845, MZ869851. Hologenophore, NMB P 829. S p e c i m e n s s t u d i e d: n = 8 (KuShokwe Pan, SA), n = 1 (Usuthu River, SA), n = 2 (Barotse floodplain, ZM). I n f e c t i o n r a t e: KuShokwe Pan (SA): P = 20%, IF = 1–2; Usuthu River (SA): P = 66%, IF = 1; Barotse floodplain (ZM) P = 6%, IF = 1. Morphological observations (measurements provided in Table 6): General morphology of the haptoral sclerites is similar to the description of Douëllou and Chishawa (1995). Marginal hook sickle blade slender and inwardly curved point, distal side slightly convex as it joins sickle blade. Base of sickle presents noticeable curvature toward anterior end of sickle, has a convex distal side with an indentation as it joins sickle blade that sharply curve inward, tapering into a sharp point that stops before proximal side of sickle base; proximal side of sickle base curved. Cirrus observed in two specimens from KuShokwe Pan (SA) and Barotse floodplain (ZM), respectively, armed with 15 small spines and one large spine ...