''Poromitra'' 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 ...

ridgehead Ridgeheads, also known as bigscales, are a family (Melamphaidae, from the Greek ''melanos'' lackand ''amphi'' y both sides of small, deep-sea stephanoberyciform fish. The family contains approximately 37 species in five genera; their distribut ...

s. The 22 known species of Poromitra have been divided into five species groups according to variation in

preopercle The operculum is a series of bones found in bony fish and chimaeras that serves as a facial support structure and a protective covering for the gills; it is also used for respiration and feeding. Anatomy The opercular series contains four bon ...

anatomy. A

Poromitra curilensis ''Poromitra'' is a genus of ridgeheads. The 22 known species of Poromitra have been divided into five species groups according to variation in preopercle anatomy. A Poromitra curilensis specimen from the Shirshov Institute of Oceanology, obtaine ...

specimen from the

Shirshov Institute of Oceanology The Shirshov Institute of Oceanology ( P.P. Shirshov Institute of Oceanology (IO) RAN, russian: Федеральное государственное бюджетное учреждение науки Институт океанологии имен ...

, obtained on October 7, 1968, marks the first discovery of a Poromitra member in the southeastern

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

Species

There are currently 21 recognized species in this genus: * ''

Poromitra atlantica ''Poromitra'' is a genus of ridgeheads. The 22 known species of Poromitra have been divided into five species groups according to variation in preopercle anatomy. A Poromitra curilensis specimen from the Shirshov Institute of Oceanology, obtaine ...

'' (

Norman Norman or Normans may refer to: Ethnic and cultural identity * The Normans, a people partly descended from Norse Vikings who settled in the territory of Normandy in France in the 10th and 11th centuries ** People or things connected with the Norm ...

, 1929) * ''

Poromitra capito ''Poromitra'' is a genus of ridgeheads. The 22 known species of Poromitra have been divided into five species groups according to variation in preopercle anatomy. A Poromitra curilensis specimen from the Shirshov Institute of Oceanology, obtaine ...

Goode Goode ( or , depending on family) is a surname. Notable people Notable people with the surname include: * Alex Goode (Born 1988), British rugby union player * Alexander D. Goode (1911-1943), US Army chaplain * Andy Goode (born 1980), British ru ...

& T. H. Bean, 1883 * ''

Poromitra coronata ''Poromitra'' is a genus of ridgeheads. The 22 known species of Poromitra have been divided into five species groups according to variation in preopercle anatomy. A Poromitra curilensis specimen from the Shirshov Institute of Oceanology, obtaine ...

'' ( Gilchrist & von Bonde, 1924) * ''

Poromitra crassa ''Poromitra'' is a genus of ridgeheads. The 22 known species of Poromitra have been divided into five species groups according to variation in preopercle anatomy. A Poromitra curilensis specimen from the Shirshov Institute of Oceanology, obtaine ...

'' Parin &

Ebeling Ebeling is a family name of Germans, German origin. It may refer to one of the following persons. *Carl Ebeling, American computer scientist *Carl Lodewijk Ebeling (1924–2017), Dutch linguist *Christoph Daniel Ebeling (1741–1817), German geogra ...

, 1980 * ''

Poromitra crassiceps ''Poromitra crassiceps'', commonly called the crested bigscale (also called large-headed midnight fish, crested melamphid, or one-horned melamphaid) is a species of deep sea fish in the ridgehead family. While the fish with the common name crest ...

'' ( Günther, 1878) (Crested bigscale) * ''

Poromitra cristiceps ''Poromitra'' is a genus of ridgeheads. The 22 known species of Poromitra have been divided into five species groups according to variation in preopercle anatomy. A Poromitra curilensis specimen from the Shirshov Institute of Oceanology, obtaine ...

'' ( C. H. Gilbert, 1890) * ''

'' Kotlyar, 2008 * ''

Poromitra decipiens ''Poromitra'' is a genus of ridgeheads. The 22 known species of Poromitra have been divided into five species groups according to variation in preopercle anatomy. A Poromitra curilensis specimen from the Shirshov Institute of Oceanology, obtaine ...

'' Kotlyar, 2008 * ''

Poromitra frontosa ''Poromitra'' is a genus of ridgeheads. The 22 known species of Poromitra have been divided into five species groups according to variation in preopercle anatomy. A Poromitra curilensis specimen from the Shirshov Institute of Oceanology, obtaine ...

'' (

Garman Garman is a surname or first name. Notable people with the name include: Sports * Ann Garman, All-American Girls Professional Baseball League player * Judi Garman (born 1954), American softball coach * Mike Garman (born 1949), American baseball pla ...

, 1899) * ''

Poromitra gibbsi ''Poromitra'' is a genus of ridgeheads. The 22 known species of Poromitra have been divided into five species groups according to variation in preopercle anatomy. A Poromitra curilensis specimen from the Shirshov Institute of Oceanology, obtaine ...

'' Parin & Borodulina, 1989 * ''

Poromitra glochidiata ''Poromitra'' is a genus of ridgeheads. The 22 known species of Poromitra have been divided into five species groups according to variation in preopercle anatomy. A Poromitra curilensis specimen from the Shirshov Institute of Oceanology, obtaine ...

'' Kotlyar, 2008 * ''

Poromitra indooceanica ''Poromitra'' is a genus of ridgeheads. The 22 known species of Poromitra have been divided into five species groups according to variation in preopercle anatomy. A Poromitra curilensis specimen from the Shirshov Institute of Oceanology, obtaine ...

'' Kotlyar, 2008 * ''

Poromitra jucunda ''Poromitra'' is a genus of ridgeheads. The 22 known species of Poromitra have been divided into five species groups according to variation in preopercle anatomy. A Poromitra curilensis specimen from the Shirshov Institute of Oceanology, obt ...

'' Kotlyar, 2010 * ''

Poromitra kukuevi ''Poromitra'' is a genus of ridgeheads. The 22 known species of Poromitra have been divided into five species groups according to variation in preopercle anatomy. A Poromitra curilensis specimen from the Shirshov Institute of Oceanology, obtaine ...

'' Kotlyar, 2008 * ''

Poromitra macrophthalma ''Poromitra'' is a genus of ridgeheads. The 22 known species of Poromitra have been divided into five species groups according to variation in preopercle anatomy. A Poromitra curilensis specimen from the Shirshov Institute of Oceanology, obta ...

'' (Gilchrist, 1903) * ''

Poromitra megalops ''Poromitra'' is a genus of ridgeheads. The 22 known species of Poromitra have been divided into five species groups according to variation in preopercle anatomy. A Poromitra curilensis specimen from the Shirshov Institute of Oceanology, obtaine ...

'' ( Lütken, 1878) * '' Poromitra nigriceps'' ( Zugmayer, 1911) * '' Poromitra nigrofulva'' (Garman, 1899) * '' Poromitra oscitans'' Ebeling, 1975 (Yawning) * '' Poromitra rugosa'' ( W. M. Chapman, 1939) * ''

Poromitra unicornis ''Poromitra'' is a genus of ridgeheads. The 22 known species of Poromitra have been divided into five species groups according to variation in preopercle anatomy. A Poromitra curilensis specimen from the Shirshov Institute of Oceanology, obtaine ...

'' (C. H. Gilbert, 1905)

References

Melamphaidae Ray-finned fish genera {{Stephanoberyciformes-stub