Graham's gudgeon, ''Grahamichthys radiatus'', is a species of

goby The Gobioidei are a suborder of percomorph fish. Many of these fishes are called gobies. It is by far the largest and most diverse order within the order Gobiiformes, and one of the most diverse groups of ray-finned fish in general. The subord ...

of 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 ...

Thalasseleotrididae Thalasseleotrididae is a family of two genera of the order Gobiiformes which are found in the temperate seas of Australia and New Zealand. They were formerly classified as part of the family Eleotridae but workers had noted that these genera were ...

, the only member of the genus ''Grahamichthys''. This species is found in

rock pool A tide pool or rock pool is a shallow pool of seawater that forms on the rocky intertidal shore. These pools typically range from a few inches to a few feet deep and a few feet across. Many of these pools exist as separate bodies of water only ...

s and in the

neritic zone The neritic zone (or sublittoral zone) is the relatively shallow part of the ocean above the drop-off of the continental shelf, approximately in depth. From the point of view of marine biology it forms a relatively stable and well-illuminate ...

, to in depth, where sand or mud is lies around and partially buries rocks, shells, or other objects. It is unusual for a goby, in that it lives in loose schools.

Etymology

The generic name is a compound formed from the surname Graham in honour of David H. Graham who wrote ''A Treasury of New Zealand Fishes'' which was published in 1953 and therefore is an allusion to this taxon being endemic to New Zealand and the

Greek Greek may refer to: Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group *Greek language, a branch of the Indo-European language family **Proto-Greek language, the assumed last common ancestor of all kno ...

''ichthys'' meaning "fish".

References

* * Tony Ayling & Geoffrey Cox, ''Collins Guide to the Sea Fishes of New Zealand'', (William Collins Publishers Ltd, Auckland, New Zealand 1982) Thalasseleotrididae Endemic marine fish of New Zealand Taxa named by Achille Valenciennes {{Gobiiformes-stub