''Iso'' is an

Indo-Pacific The Indo-Pacific is a vast biogeographic region of Earth. In a narrow sense, sometimes known as the Indo-West Pacific or Indo-Pacific Asia, it comprises the tropical waters of the Indian Ocean, the western and central Pacific Ocean, and the ...

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

silverside Silverside may refer to: * Silverside (beef), a cut of beef * Silverside (fish), the Atheriniformes, an order of fish * Agnes Silverside (died 1557), one of the Colchester Martyrs * USS ''Silversides'', the name of 2 U.S. Navy submarines * Silvers ...

s, commonly called surf sardines, the only genus in the

monogeneric In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispe ...

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Isonidae, they were formerly classified in the family

Notocheiridae The surf silverside (''Notocheirus hubbsi'') is a species of silverside from the order Atheriniformes found along the Pacific coast of Argentina and Chile. It is the only known member of its family and molecular evidence points to this species ...

alongside the surf silverside but they are now thought to be within the

suborder Order () is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized ...

Atherinoidei Atherinoidei is a suborder of the order Atheriniformes comprising six families, with a mainly Old World distribution, although a few species are found in the western Atlantic Ocean. Families The suborder contains the following families: * Famil ...

while the surf silverside is classified in the suborder

Atherinopsoidei Atherinopsoidei is a suborder of the order Atheriniformes comprising two families, both of which are restricted to the Americas. Families The suborder contains the following families: * Family Atherinopsidae Fitzinger, 1873 (New World silversi ...

, along with the

Neotropical silversides The neotropical silversides are a family, Atherinopsidae, of fishes in the order Atheriniformes. About 112 species in 13 genera are distributed throughout the tropical and temperate waters of the New World, including both marine and freshwater ha ...

. It contains five species to date, the first of which was described in 1895.

Species

The currently recognized species in this genus are: * '' Iso flosmaris''

D. S. Jordan David Starr Jordan (January 19, 1851 – September 19, 1931) was the founding president of Stanford University, serving from 1891 to 1913. He was an ichthyologist during his research career. Prior to serving as president of Stanford Universi ...

& Starks, 1901 * ''

Iso hawaiiensis The International Organization for Standardization (ISO ; ; ) is an independent, non-governmental, international standard development organization composed of representatives from the national standards organizations of member countries. Mem ...

'' Gosline, 1952 (Hawaiian surf sardine) * ''

Iso natalensis The International Organization for Standardization (ISO ; ; ) is an independent, non-governmental, international standard development organization composed of representatives from the national standards organizations of member countries. Mem ...

'' Regan, 1919 (surf sprite) * ''

Iso nesiotes The International Organization for Standardization (ISO ; ; ) is an independent, non-governmental, international standard development organization composed of representatives from the national standards organizations of member countries. Mem ...

'' Saeed, Ivantsoff & Crowley, 1993 (Samoan surf sardine) * ''

Iso rhothophilus The International Organization for Standardization (ISO ; ; ) is an independent, non-governmental, international standard development organization composed of representatives from the national standards organizations of member countries. Mem ...

'' ( J. D. Ogilby, 1895) (flower of the wave)

References

Atheriniformes Taxa named by David Starr Jordan {{Atheriniformes-stub