Siboglinidae is a family of polychaete annelid worms whose members made up the former phyla Pogonophora and Vestimentifera. The family is composed of around 100 species of vermiform creatures which live in thin tubes buried in sediment (Pogonophora) or in tubes attached to hard substratum (Vestimentifera) at ocean depths ranging from 100 to 10,000 m. They can also be found in association with hydrothermal vents, methane seeps, sunken plant material, and whale carcasses.
Digenea is a class of trematodes in the Platyhelminthes phylum, consisting of parasitic flatworms with a syncytial tegument and, usually, two suckers, one ventral and one oral. Adults commonly live within the digestive tract, but occur throughout the organ systems of all classes of vertebrates. Once thought to be related to the Monogenea, it is now recognised that they are closest to the Aspidogastrea and that the Monogenea are more closely allied with the Cestoda. Around 6,000 species have been described to date.
Symphurus thermophilus is a species of tonguefish notable for being the only flatfish known to be an obligate inhabitant of hydrothermal vents. It is known from several widely dispersed locations in the western Pacific Ocean and occurs in great numbers. They are tolerant of harsh conditions and are often found in close association with elemental sulfur, including molten sulfur pools that exceed 180 °C in temperature. As they are not significantly different in appearance and feeding habits from other tonguefishes, they are thought to be relatively recent colonizers of vent ecosystems.
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 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.
The yellowfin goatfish is a species of goatfish native to the Indian Ocean and the Pacific Ocean.
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.
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".
Biospeedotrema biospeedoi 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 its cogenerates by the shape of its body; its uterine extent is posterior to its testes and its small vitellarium.
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.
Hamacreadium cribbi is a species of digenean, parasitic in the lethrinid fish Lethrinus miniatus. The species was collected off New Caledonia.
Buticolotrema is a genus of trematodes in the family Opecoelidae.
Coitocaecum is a genus of trematodes in the family Opecoelidae. It has been synonymised to Ozakia Wisniewski, 1934, Paradactylostomum Zhukov, 1972 nec Toman, 1992, and Pseudocoitocaecum Bilqees, 1972.
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.
