''Phallostethus dunckeri'' is a species of

fish Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of li ...

in the family

Phallostethidae Phallostethidae, also known as the priapium fish, is a family of atheriniform fish native to freshwater and brackish habitats in southeast Asia. They are small, no more than in length, with partially translucent bodies. They are found in fresh ...

. It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

Malaysia Malaysia ( ; ) is a country in Southeast Asia. The federation, federal constitutional monarchy consists of States and federal territories of Malaysia, thirteen states and three federal territories, separated by the South China Sea into two r ...

Environment

''Phallostethus dunckeri'' is recorded to be found in a freshwater environment within a pelagic depth range. This species is native to a tropical climate.

Distribution

''Phallostethus dunckeri'' is native to the areas of Asia and Malaysia.

Biology

The eggs of ''Phallostethus dunckeri'' are fertilised internally and then after laying they are attached to the substrate by adhesive filaments.

Taxonomy and naming

''Phallostethus dunckeri'' is the

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen ...

of the genus ''

Phallostethus ''Phallostethus'' is a small genus of fishes in the family Phallostethidae native to freshwater and brackish habitats in southeast Asia. Species The currently recognized species in this genus are: * '' Phallostethus cuulong'' Shibukawa, Đ. Đ ...

''. It was described by Charles Tate Regan in 1913 with a type locality of the

Muar River The Muar River ( ms, Sungai Muar) is a river which flows through the states of Johor, Negeri Sembilan and Pahang in Malaysia. The river also flows through Muar town. History The Muar River formed part of the '' Penarikan'', an ancient overlan ...

Johor Johor (; ), also spelled as Johore, is a States and federal territories of Malaysia, state of Malaysia in the south of the Malay Peninsula. Johor has land borders with the Malaysian states of Pahang to the north and Malacca and Negeri Sembilan ...

in Malaysia. Regan honoured the

German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ger ...

ichthyologist Ichthyology is the branch of zoology devoted to the study of fish, including bony fish ( Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha). According to FishBase, 33,400 species of fish had been described as of Octobe ...

Georg Duncker Paul Georg Egmont Duncker (6 May 1870, Hamburg – 28 July 1953, Ahrensburg) was a German ichthyologist. Biography He studied at the universities of Kiel, Freiburg, and Berlin, receiving his doctorate at Kiel in 1895. Following graduation ...

(1870-1953) of the

Zoologisches Museum Hamburg The University of Hamburg (german: link=no, Universität Hamburg, also referred to as UHH) is a public research university in Hamburg, Germany. It was founded on 28 March 1919 by combining the previous General Lecture System ('' Allgemeines Vor ...

, Duncker initially wrote about this species in 1904 but he was too busy to write a description so he passed some of his specimens on to Regan for him to describe.

References

* Endemic fauna of Malaysia Freshwater fish of Malaysia dunckeri Taxa named by Charles Tate Regan Taxonomy articles created by Polbot Fish described in 1913 {{Atheriniformes-stub