''Paratherina wolterecki'' 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

subfamily In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end subfamily botanical names with "-oideae", and zoologi ...

Telmatherininae The Telmatherininae, the sail-fin silversides are a subfamily of Atheriniformes, atheriniform fish from the rainbowfish family, the Melanotaeniidae, inhabiting fresh and brackish water. All but the species ''Kalyptatherina helodes'' are restricte ...

, part of the

rainbowfish The rainbowfish or Melanotaeniidae is a family of small, colourful freshwater fish found in northern and eastern Australia, New Guinea (including islands in Cenderawasih Bay and Raja Ampat Islands in Indonesia), Sulawesi and Madagascar. The lar ...

family

Melanotaeniidae The rainbowfish or Melanotaeniidae is a family of small, colourful freshwater fish found in northern and eastern Australia, New Guinea (including islands in Cenderawasih Bay and Raja Ampat Islands in Indonesia), Sulawesi and Madagascar. The lar ...

. This species 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 ...

to Lakes Towuti and Mahalona on the

Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...

n island of

Sulawesi Sulawesi (), also known as Celebes (), is an island in Indonesia. One of the four Greater Sunda Islands, and the world's eleventh-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Mindanao and the Sulu Ar ...

. It reaches up to in total length. Their environment is

pelagic The pelagic zone consists of the water column of the open ocean, and can be further divided into regions by depth (as illustrated on the right). The word ''pelagic'' is derived . The pelagic zone can be thought of as an imaginary cylinder or wa ...

and they live in tropical climates. It has the characteristic of having a mouth pointed upward. The

specific name Specific name may refer to: * in Database management systems, a system-assigned name that is unique within a particular database In taxonomy, either of these two meanings, each with its own set of rules: * Specific name (botany), the two-part (bino ...

honours the hydrologist and

biologist A biologist is a scientist who conducts research in biology. Biologists are interested in studying life on Earth, whether it is an individual Cell (biology), cell, a multicellular organism, or a Community (ecology), community of Biological inter ...

Richard Woltereck Richard Woltereck (6 April 1877 – 23 February 1944) was a German zoologist best known for developing the concept of reaction norm (German: ''Reaktionsnorm''). He also conducted some of the first research that provided evidence for the process ...

(1877-1944), who collected specimens of all four species in the

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 ...

Paratherina ''Paratherina'' is a genus of sailfin silversides endemic to the Indonesian island of Sulawesi. Species The currently recognized species in this genus are: * '' Paratherina cyanea'' Aurich Aurich (; East Frisian Low Saxon: ''Auerk'', West F ...

'' and who sketched them from life.

References

wolterecki Fish described in 1935 Taxonomy articles created by Polbot {{Atheriniformes-stub