''Metacrinus'' is a

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 ...

of stalked

crinoid Crinoids are marine invertebrates that make up the class Crinoidea. Crinoids that remain attached to the sea floor by a stalk in their adult form are commonly called sea lilies, while the unstalked forms, called feather stars or comatulids, are ...

s in the

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 ...

Isocrinidae Isocrinidae is one of four extant taxon, extant family (biology), families of crinoids in the Order (biology), order Isocrinida.Messing, C. (2014)Isocrinidae Gislén, 1924 In: Messing, C. (2014) World List of Crinoidea. Accessed through: World Re ...

. Members of this genus live on hard surfaces in deeper parts of the ocean. The genus has

extant Extant or Least-concern species, least concern is the opposite of the word extinct. It may refer to: * Extant hereditary titles * Extant literature, surviving literature, such as ''Beowulf'', the oldest extant manuscript written in English * Exta ...

species and is also represented in the

fossil A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserve ...

record. Members of the genus grow to a maximum height of and are found in the eastern

Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is ...

from

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

to Australia.

Species

The World Register of Marine Species lists the following species in the genus: *''

Metacrinus costatus ''Metacrinus'' is a genus of stalked crinoids in the Family (biology), family Isocrinidae. Members of this genus live on hard surfaces in deeper parts of the ocean. The genus has extant taxon, extant species and is also represented in the fossil ...

'' Carpenter, 1884 *'' Metacrinus interruptus'' Carpenter, 1884 *'' Metacrinus levii'' Améziane-Cominardi, 1990 *'' Metacrinus musorstomae'' Roux, 1981 *'' Metacrinus nodosus'' Carpenter, 1884 *'' Metacrinus rotundus'' Carpenter, 1885 *'' Metacrinus serratus'' Döderlein, 1907 *'' Metacrinus wyvillii'' Carpenter, 1884 *'' Metacrinus zonatus'' AH Clark, 1908

References

Isocrinidae Crinoid genera {{crinoidea-stub