''Schismatogobius'' 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 ...

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 ...

Gobionellinae The Gobionellinae are a subfamily of fish which was formerly classified in the family Gobiidae, the gobies, but the 5th Edition of '' Fishes of the World'' classifies the subfamily as part of the family Oxudercidae. Members of Gobionellinae most ...

. They are native to southern and eastern

Asia Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an area ...

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

and the

Pacific Islands Collectively called the Pacific Islands, the islands in the Pacific Ocean are further categorized into three major island groups: Melanesia, Micronesia, and Polynesia. Depending on the context, the term ''Pacific Islands'' may refer to one of se ...

. Adults dwell in

freshwater Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include ...

habitat such as streams and rivers, where they live along the sand and

gravel Gravel is a loose aggregation of rock fragments. Gravel occurs naturally throughout the world as a result of sedimentary and erosive geologic processes; it is also produced in large quantities commercially as crushed stone. Gravel is classifi ...

substrates. These fish are not always obvious in the habitat, because they are small and

cryptic Cryptic may refer to: In science: * Cryptic species complex, a group of species that are very difficult to distinguish from one another * Crypsis, the ability of animals to blend in to avoid observation * Cryptic era, earliest period of the Earth ...

. They lack

scales Scale or scales may refer to: Mathematics * Scale (descriptive set theory), an object defined on a set of points * Scale (ratio), the ratio of a linear dimension of a model to the corresponding dimension of the original * Scale factor, a number w ...

and have variable color patterns, with no two individuals of a given species alike. Compared to those of females, the

jaws Jaws or Jaw may refer to: Anatomy * Jaw, an opposable articulated structure at the entrance of the mouth ** Mandible, the lower jaw Arts, entertainment, and media * Jaws (James Bond), a character in ''The Spy Who Loved Me'' and ''Moonraker'' * ...

of males are "hugely large".

Species

The 20 recognized species in this genus are: * '' Schismatogobius alleni''

Keith Keith may refer to: People and fictional characters * Keith (given name), includes a list of people and fictional characters * Keith (surname) * Keith (singer), American singer James Keefer (born 1949) * Baron Keith, a line of Scottish barons ...

Lord Lord is an appellation for a person or deity who has authority, control, or power over others, acting as a master, chief, or ruler. The appellation can also denote certain persons who hold a title of the peerage in the United Kingdom, or ar ...

& Larson, 2017 Keith, P., Lord, C. & Larson, H.K. (2017)
Review of ''Schismatogobius'' (Gobiidae) from Papua New Guinea to Samoa, with description of seven new species.
''Cybium, 41 (1): 45-66.'' * '' Schismatogobius ampluvinculus'' I. S. Chen, K. T. Shao & L. S. Fang, 1995 * '' Schismatogobius arscuttoli''

Hubert Hubert is a Germanic masculine given name, from ''hug'' "mind" and '' beraht'' "bright". It also occurs as a surname. Saint Hubertus or Hubert (c. 656 – 30 May 727) is the patron saint of hunters, mathematicians, opticians, and metalworkers ...

, 2017 Keith, P., Lord, C., Darhuddin, H., Limmon, G., Sukmono, T., Hadiaty, R. & Hubert, N. (2017)
''Schismatogobius'' (Gobiidae) from Indonesia, with description of four new species.
''Cybium, 41 (2): 195-211.'' * '' Schismatogobius baitabag''

& Larson, 2017 * '' Schismatogobius bruynisi'' de Beaufort, 1912 * '' Schismatogobius bussoni''

, Limmon & Darhuddin, 2017 * '' Schismatogobius deraniyagalai''

Kottelat Maurice Kottelat (born 16 July 1957 in Delémont, SwitzerlandC ...

& Pethiyagoda, 1989 (redneck goby) * '' Schismatogobius essi''

& Larson, 2017 * '' Schismatogobius fuligimentus'' I. S. Chen, Séret, Pöllabauer & K. T. Shao, 2001 * '' Schismatogobius hoesei''

& Larson, 2017 * '' Schismatogobius insignus'' ( Herre, 1927) * '' Schismatogobius marmoratus'' ( W. K. H. Peters, 1868) * '' Schismatogobius mondo''

& Larson, 2017 * '' Schismatogobius ninja'' Maeda, Saeki & Satoh, 2017 Maeda, K., Saeki, T., Shinzato, C., Koyanagi, R. & Satoh, N. (2017)
Review of ''Schismatogobius'' (Gobiidae) from Japan, with the description of a new species.
''Ichthyological Research, 65 (1): 56-77.'' * '' Schismatogobius risdawatiae''

, Darhuddin, Sukmono &

, 2017 * '' Schismatogobius saurii''

, Hadiaty & Hubert, 2017 * '' Schismatogobius tiola''

& Larson, 2017 * '' Schismatogobius tuimanua''

& Larson, 2017 * '' Schismatogobius vanuatuensis''

, Marquet & R. E. Watson, 2004 (Vanuatu goby) * '' Schismatogobius vitiensis'' A. P. Jenkins & Boseto, 2005

References

Gobionellinae Taxa named by Lieven Ferdinand de Beaufort {{Gobiiformes-stub