From: Myxosporean hyperparasites of gill monogeneans are basal to the Multivalvulida
Myxosporean (reference) | Host platyhelminth | Host fish/habitat sampled from | Pathology to platyhelminth | Developmental stages in platyhelminth, Sporogony | Myxosporean observed in the fish host |
---|---|---|---|---|---|
Myxidium incomptavermi n. sp. (present study) | Diplectanocotyla gracilis gill monogenean | Megalops cyprinoides (Indo-Pacific tarpon) Brackish/mangroves Langkawi, Malaysia | Marked pathology, parenchymal tissues packed with spores. | Paired spores observed in parenchymal tissues. Likely polysporous within a pansporoblast | Not observed despite careful screening; but amplified via PCR |
Myxidium giardi (doubtful ID) [13] | Pseudodactylogyrus bini gill monogenean | Anguilla anguilla (European eel) River in Northwest Spain. | Not mentioned, but numerous 'corpuscles' and spores are always present, replacing monogenean tissues. | Not described, but corpuscles of differing sizes were present and only in hyperparasitised individuals. | Myxidium giardi was not found in the eel with hyperparasitic myxosporeans |
Myxidium sp. [14] | Haliotrema sp. gill monogenean | Platycephalus sp. (flathead) Brackish water, Lake Hamana, Japan | Marked pathology, parenchymal tissues packed with spores. | Paired spores observed in parenchymal tissues. Likely polysporous within a pansporoblast | Not found, despite careful screening |
Fabespora vermicola [11] | Crassicutis archosargi intestinal digenean | Archosargus probatocephalus (sheepshead seabream) Estuarine, East USA. | Highly pathogenic, necrosis of the gonads leads to a total loss of fecundity. | Histozoic trophozoites, in parenchymal cells and in the integument. Disporous. | Not found, despite careful screening |
Fabespora sp. [12] | Allopodocotyle chrysophrii intestinal digenean | Sparus aurata (gilthead seabream) Brackish water lagoon and Mediterranean coast | Sporogonic stages present within the tegument and parenchymal tissues cause tissue damage. | Monosporous in the tegument, and generally disporous in the parenchymal tissues. | Not found |