''Sphaerostoma'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...
of
trematodes
Trematoda is a class of flatworms known as flukes. They are obligate internal parasites with a complex life cycle requiring at least two hosts. The intermediate host, in which asexual reproduction occurs, is usually a snail. The definitive host ...
in the
family
Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...
Opecoelidae
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.Bray, Rodney A., Cribb, Thomas H., Littlewood, D. Timothy J. & Waesch ...
. It consists of one species, ''Sphaerostoma bramae'' (Müller, 1776).
[Müller, O. F. (1776). ''Zoologiæ Danicæ Prodromus, seu Animalium Daniæ et Norvegiæ Indigenarum Characteres, Nomina, et Synonyma Imprimis Popularium''. Havniæ: Typis Hallageriis.]
References
Opecoelidae
Plagiorchiida genera
Monotypic protostome genera
{{trematoda-stub