''Incisilabeo'' is a

monospecific genus In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispe ...

of freshwater

ray-finned fishes Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class (biology), class of Osteichthyes, bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built ...

belonging to 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 ...

Cyprinidae Cyprinidae is a family of freshwater fish commonly called the carp or minnow family, including the carps, the true minnows, and their relatives the barbs and barbels, among others. Cyprinidae is the largest and most diverse fish family, and t ...

, the family which includes the carps, barbs, minnows and related fishes. The only species in the gneus is ''Incisilabeo behri''. Males develop a distinctive

nuchal hump This is a list of animals that have a naturally occurring hump or humps as a part of their anatomy. Humps may evolve, as a store of fat, as a heat control mechanism, as a development of muscular strength, as a form of display to other animals, ...

with

pearl organ Nuptial tubercles or breeding tubercles (also called pearl organs or nuptial efflorescence) are noticeable skin roughness or horny nodules that form on male fish during breeding. They are made of keratin, the same material as hair, hooves, and ...

s during the breeding season. This

sexual ornament A biological ornament is a characteristic of an animal that appears to serve a decorative function rather than a utilitarian function. Many are secondary sexual characteristics, and others appear on young birds during the period when they are depen ...

is uniquely divided in two by a notch at the level of the eyes, from which the generic name ''Incisilabeo'' is derived: "notch" plus ''

Labeo ''Labeo'' is a genus of carps in the family Cyprinidae. They are found in freshwater habitats in the tropics and subtropics of Africa and Asia. It contains the typical labeos in the subfamily Labeoninae, which may not be a valid group, howeve ...

''. 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 Otto Behr (1861–1934), an amateur naturalist and ornithologist from

Lopez, Pennsylvania Lopez is an unincorporated community located in Colley Township, Sullivan County, Pennsylvania, United States. The community is located on Pennsylvania Route 487. As of the 2010 census, the population of ZIP code 18628 was 501. Lopez is n ...

who provided wildlife specimens from Thailand that Fowler worked on during his employment at the

Academy of Natural Sciences of Philadelphia The Academy of Natural Sciences of Drexel University, formerly the Academy of Natural Sciences of Philadelphia, is the oldest natural science research institution and museum in the Americas. It was founded in 1812, by many of the leading natur ...

References

Fish described in 1937 Taxa named by Henry Weed Fowler Monotypic cyprinid fish genera {{labeoninae-stub