Larval cestodes infecting the deep-water fish, Cataetyx laticeps (Pisces: Bythitidae) from Madeira Archipelago, Atlantic Ocean

Graça Costa 1 , Mahnaz Khadem 2 , Thomas Dellinger 1 , Manuel Biscoito 1  and Egberto Melo-Moreira 1
  • 1 Estação de Biologia Marinha do Funchal, Promenade Orla Marítima do Funchal, 9000-107 Funchal, Portugal
  • 2 ISOPlexis, Universidade da Madeira, Campus da Penteada, 9000-390 Funchal, Portugal


Parasites of deep-water fishes are less known in comparison to the parasites of fishes living in the demersal and epipelagic ocean zones. In the present research note we report the occurrence of larval trypanorhynch cestodes in a rare deep-water fish, the deep-water brotula, Cataetyx laticeps. Based on the 28S rDNA (region D1-D3) sequence homology and the phylogenetic analysis, the larval cestodes are putatively assigned to the genus Grillotia. It is suggested that the definitive host of this trypanorhynch is a batoid.

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