''Olindias'' is a

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

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 ...

Olindiidae Olindiidae is a family of hydrozoans in the order Limnomedusae. They have a polyp (zoology), polyp phase and a Jellyfish, medusa phase. The polyps are generally small (1 mm) and solitary, but a few species are colonial. They have a varying ...

Characteristics

Members of the genus ''Olindias'' have a dome-shaped bell, four radial canals and many centripetal canals. The

gonad A gonad, sex gland, or reproductive gland is a mixed gland that produces the gametes and sex hormones of an organism. Female reproductive cells are egg cells, and male reproductive cells are sperm. The male gonad, the testicle, produces sper ...

s are beside the radial canals and have characteristic papilliform processes. There are a few primary

tentacle In zoology, a tentacle is a flexible, mobile, and elongated organ present in some species of animals, most of them invertebrates. In animal anatomy, tentacles usually occur in one or more pairs. Anatomically, the tentacles of animals work main ...

s growing part way down the bell with adhesive suckers and

cnidocyte A cnidocyte (also known as a cnidoblast or nematocyte) is an explosive cell containing one large secretory organelle called a cnidocyst (also known as a cnida () or nematocyst) that can deliver a sting to other organisms. The presence of this ce ...

s in bands. There are a pair of

statocyst The statocyst is a balance sensory receptor present in some aquatic invertebrates, including bivalves, cnidarians, ctenophorans, echinoderms, cephalopods, and crustaceans. A similar structure is also found in ''Xenoturbella''. The statocyst cons ...

s adjoining the base of each primary tentacle. There are a much larger number of short marginal tentacles with rings of cnidocytes for immobilising

prey Predation is a biological interaction where one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation (which usually do not kill the ...

. Between these tentacles there are a number of club-shaped processes which may develop into tentacles.''Olindias''
Marine Species Identification Portal. Retrieved 2011-12-08.

Species

The World Register of Marine Species currently lists the following species: *''Olindias formosus'' (

Goto GoTo (goto, GOTO, GO TO or other case combinations, depending on the programming language) is a statement found in many computer programming languages. It performs a one-way transfer of control to another line of code; in contrast a function ca ...

, 1903) -

flower hat jelly The flower hat jelly (''Olindias formosus'') is a species of hydrozoa, hydromedusa in the hydrozoan family Olindiidae. Although they look like a jellyfish, they actually belong in the class Hydrozoa, while true jellyfish belong in class Scyph ...

*'' Olindias malayensis'' Maas, 1905 *''

Olindias phosphorica ''Olindias phosphorica'', or cigar jellyfish, is a species of hydrozoan Hydrozoa (hydrozoans; ) are a taxonomic class of individually very small, predatory animals, some solitary and some colonial, most of which inhabit saline water. The colo ...

'' (Delle Chiaje, 1841) *'' Olindias sambaquiensis'' Müller, 1861 *''

Olindias singularis ''Olindias'' is a genus of hydrozoans in the family Olindiidae. Characteristics Members of the genus ''Olindias'' have a dome-shaped bell, four radial canals and many centripetal canals. The gonads are beside the radial canals and have character ...

'' Browne, 1905 *'' Olindias tenuis'' (Fewkes, 1882)

References

Olindiidae Hydrozoan genera {{Hydrozoa-stub