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A flatfish is a member of the ray-finned demersal fish order Pleuronectiformes, also called the Heterosomata, sometimes classified as a suborder of Perciformes. In many species, both eyes lie on one side of the head, one or the other migrating through or around the head during development. Some species face their left sides upward, some face their right sides upward, and others face either side upward.
The Barred Mudskipper or Silverlined Mudskipper is a species of Mudskippers native to marine, fresh and brackish waters from the African coast of the Indian Ocean to the Marianas and Samoa in the western Pacific Ocean and from the Ryukyus south to Australia. This species occurs in Mangrove Forests and Nipa Palm stands and can cross surfaces of mud while out of the water. This species can reach a length of 19 centimetres (7.5 in) TL. It can also be found in the aquarium trade.
Parasites of the Barred Mudskipper include Acanthocephalan larvae and the small Opecoelid Digenean parasite in the intestine and described from fish collected in New Caledonia.
The East Pacific ventbrotula is a species of cusk-eel found around thermal vents on the southern East Pacific Rise at depths of about 2,586 metres (8,484 ft). This species grows to a length of 28.2 centimetres (11.1 in) SL. It is the only known member of its genus. The generic name is a compound of vent, for the Oasis hydrothermal vent on the south East Pacific Rise and the Greek ichthys meaning "fish", while the specific name refers to the French BIOSPEEDO expedition to the south East Pacific Rise which collected the type specimen in 2004.
The gargoyle cusk is a species of cusk-eel from the subfamily Neobythitinae of the family Ophidiidae. This species grows to a length of 57 centimetres (22 in) TL. It is the only known member of its genus. The specific name honours George S. Myers (1905-1985) of Stanford University who taught the describer, Daniel Cohen, ichthyology. It is a rare benthopelagic fish which occurs at depths of 984–2,500 metres (3,228–8,202 ft) around the world, other than the eastern Pacific, in tropical and subtropical latitudes.
Opecoelidae is a family of trematodes. It is the largest digenean family with over 90 genera and nearly 900 species, almost solely found in marine and freshwater teleost fishes. It was considered by Bray et al. to belong in the superfamily Opecoeloidea Ozaki, 1925 or the Brachycladioidea Odhner, 1905.
Lethrinus lentjan is a species of emperor fish. It has a distinctive blood-red colouration around the margin of the gill covers. It is widespread around the Indo-West Pacific, and is reef-associated. This species is fished commercially and for sport.
Biospeedotrema jolliveti is a species of trematodes inhabiting hydrothermal vent fishes in the south eastern Pacific Ocean. It can be distinguished from its family by its symmetrical testicular configuration; its uterus passing between the testes. Furthermore, it can be differentiated by vitelline fields which extend slightly into its post-testicular region; its intestinal bifurcation is dorsal to its ventral sucker; its genital pore is somewhat submedian or median; its cirrus sac is short and the caeca are large and overlap the testes.
Biospeedotrema parajolliveti is a species of trematodes inhabiting hydrothermal vent fishes in the south eastern Pacific Ocean. It can be distinguished from its family by its symmetrical testicular configuration; its uterus passing between the testes. Furthermore, it differs from Biospeedotrema jolliveti by being squat; wider than long; its tegument being wrinkled; its lobate testes, and the caeca "only just reach to the testes".
Caudotestis ventichthysi is a species of trematodes inhabiting hydrothermal vent fishes in the south eastern Pacific Ocean. It can be distinguished from its family by its symmetrical testicular configuration; its uterus passing between the testes. Furthermore, what differentiates it from its cogenerates is caecal length; cirrus sac length; its internal seminal vesicle's shape; vitelline extent and arrangement, as well as forebody length and egg-size.
Buticulotrema thermichthysi is a species of trematodes inhabiting hydrothermal vent fishes in the south eastern Pacific Ocean. It can be distinguished from its family by its symmetrical testicular configuration; its uterus passing between the testes. Furthermore, it can be differentiated from its cogenerate species by its long and strongly muscular oesophagus, that bifurcates dorsally to the posterior part of the animal's ventral sucker; its long and narrow pars prostatica and distal male duct, as well as its sinistral genital pore that can be found at the level of its pharynx.
Hamacreadium cribbi is a species of digenean, parasitic in the lethrinid fish Lethrinus miniatus. The species was collected off New Caledonia.
Allopodocotyle is a genus of trematodes in the family Opecoelidae.
Buticolotrema is a genus of trematodes in the family Opecoelidae.
Dactylostomum is a genus of trematodes in the family Opecoelidae. It is synonyised with Opedunculata Dwivedi, 1975.
Neolebouria is a genus of trematodes in the family Opecoelidae.
Tellervotrema is a genus of trematodes in the family Opecoelidae.
Biospeedotrema is a genus of trematodes in the family Opecoelidae.
Helicometrinae is a subfamily of trematodes in the family Opecoelidae.
Caudotestis is a genus of trematodes in the family Opecoelidae.
Neochoanostoma is a genus of trematodes in the family Opecoelidae.
