''Solanderia'' is the sole

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

of hydrozoans in the

monotypic 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 "unispec ...

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Solanderiidae. They are commonly known as tree hydroids or sea fan hydroids.

Description

Hydrozoa Rakitu-Island MNP9142 NIWA101027 edited

''Solanderia'' hydroids forms large colonies. They are one of about 1000 species of athecate hydroids, which do not construct a skeletal covering for their polyps (as opposed to the thecate hydroids in the order Leptothecata. The

chitin Chitin ( C8 H13 O5 N)n ( ) is a long-chain polymer of ''N''-acetylglucosamine, an amide derivative of glucose. Chitin is probably the second most abundant polysaccharide in nature (behind only cellulose); an estimated 1 billion tons of chit ...

ous skeleton is internal, branches, and may form

anastomoses An anastomosis (, plural anastomoses) is a connection or opening between two things (especially cavities or passages) that are normally diverging or branching, such as between blood vessels, leaf veins, or streams. Such a connection may be normal ...

. The skeleton is formed by coalescence and modification of adjacent hydrocauline tubes. The coenosarc covers the entire colony and penetrates skeletal interstices. The hydranths cover the whole colony surface and are uniform in structure, cylindrical, with a single whorl of capitate tentacles around the mouth. Numerous similar tentacles are scattered over the body. ''Solanderia'' is known from its polyp or hydroid stage, and produces gonophores which release sperm and eggs for reproduction. Where known, the gonophores are cryptomedusoid or eumedusoid, arising directly from the coenosarc.

Ecology

Species of ''Solanderia'' are eaten by nudibranchs in the genus ''

Hermosita ''Hermosita'' is a genus of sea slugs, specifically of aeolid nudibranchs. Only two species are known to belong to this genus, marine gastropod molluscs in the family Facelinidae. Biology Both species of ''Hermosita'' feed on the hydroid '' So ...

'' and the family

Pleurolidiidae Pleurolidiidae is a family of nudibranchs, shell-less marine gastropod molluscs or sea slugs, within the superfamily Aeolidioidea. Genera and species Genera and species within the family Pleurolidiidae include:Bouchet, P.; Gofas, S. (2015)Pleu ...

Species

Hydrozoa Site-12 Houhora-Harbour MNP7182 NIWA101292 edited 0

''Solanderia'' contains the following species:Schuchert, P. (2015)
''Solanderia'' Duchassaing & Michelin, 1846.
In: Schuchert, P. (2015) World Hydrozoa database. Accessed through: World Register of Marine Species on 2015-12-17 *''

Solanderia dendritica ''Solanderia'' is the sole genus of hydrozoans in the monotypic family Solanderiidae. They are commonly known as tree hydroids or sea fan hydroids. Description ''Solanderia'' hydroids forms large colonies. They are one of about 1000 species of ...

'' (Fraser, 1938) *''

Solanderia ericopsis ''Solanderia ericopsis'' is a hydroid in the family Solanderiidae, the group commonly known as tree hydroids or sea fan hydroids. ''S. ericopsis'' forms very large, conspicuous colonies from 5 to 50 cm in height, which are often noted by di ...

'' (Carter, 1873) *''

Solanderia fusca ''Solanderia'' is the sole genus of hydrozoans in the monotypic family Solanderiidae. They are commonly known as tree hydroids or sea fan hydroids. Description ''Solanderia'' hydroids forms large colonies. They are one of about 1000 species of ...

'' (Gray, 1868) *''

Solanderia gracilis ''Solanderia'' is the sole genus of hydrozoans in the monotypic family Solanderiidae. They are commonly known as tree hydroids or sea fan hydroids. Description ''Solanderia'' hydroids forms large colonies. They are one of about 1000 species of ...

'' Duchassaing & Michelin, 1846 *''

Solanderia misakinensis ''Solanderia'' is the sole genus of hydrozoans in the monotypic family Solanderiidae. They are commonly known as tree hydroids or sea fan hydroids. Description ''Solanderia'' hydroids forms large colonies. They are one of about 1000 species of ...

'' (Inaba, 1892) *''

Solanderia procumbens The grey fan hydroid (''Solanderia procumbens'') is a large colonial hydroid in the family Solanderiidae ''Solanderia'' is the sole genus of hydrozoans in the monotypic family Solanderiidae. They are commonly known as tree hydroids or sea fa ...

'' (Carter, 1873) *''

Solanderia secunda ''Solanderia'' is the sole genus of hydrozoans in the monotypic family Solanderiidae. They are commonly known as tree hydroids or sea fan hydroids. Description ''Solanderia'' hydroids forms large colonies. They are one of about 1000 species of ...

'' (Inaba, 1892) ;Species brought into synonymy * ''Solanderia atrorubens'' (Gray, 1868): synonym of ''Solanderia fusca'' (Gray, 1868) * ''Solanderia minima'' (Hickson, 1903): synonym of ''Solanderia secunda'' (Inaba, 1892) * ''Solanderia misakiensis'' (Inaba, 1892): synonym of ''Solanderia misakinensis'' (Inaba, 1892) * ''Solanderia rufescens'' Jäderholm, 1896: synonym of ''Solanderia secunda'' (Inaba, 1892)

References

{{Taxonbar, from1=Q4005785, from2=Q17132282 Solanderiidae Hydrozoan genera Animals described in 1873