| Trimma | |
|---|---|
 | |
| Trimma gigantum | |
 | |
| Trimma caesiura | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Gobiiformes |
| Family: | Gobiidae |
| Genus: | Trimma D. S. Jordan & Seale, 1906 |
| Type species | |
| Trimma caesiura D. S. Jordan & Seale, 1906 | |
Trimma is a genus of fish in the family Gobiidae native to the Indian and Pacific Ocean. Together with members of the genus Eviota , they are known commonly as pygmygobies or dwarfgobies.
There are currently 98 recognized species in this genus:
Gobiodon is a genus of gobies also known as coral gobies or "clown gobies". Generally, coral gobies, unlike the rest of the family Gobiidae, are not burrowers, but instead prefer to inhabit the branches of certain Acropora or similar hard corals.
Cirrhilabrus is a genus of fish in the family Labridae native to reefs in the Indian and Pacific Ocean, commonly kept in aquaria.
Pseudochromis is a genus of fish in the family Pseudochromidae found in Indian and Pacific Ocean.
Eviota is a genus of fish in the family Gobiidae, commonly as dwarfgobies found in the Indo-Pacific region, where it is distributed from Japan to Australia and from Africa to Pitcairn Island. Species are mainly associated with coral reefs. Many of these fish are short-lived, with life cycles as brief as 3.5 weeks in the tropics. Some species are hermaphrodites and some representatives live symbiotically among the tentacles of the mushroom coral.
Priolepis is a genus of fish in the family Gobiidae with a cosmopolitan distribution.
Vanderhorstia is a genus of gobies native to the Indian and Pacific oceans. The name of this genus honours the Dutch biologist Cornelius van der Horst (1889-1951) of the University of The Witwatersrand, Johannesburg, who was well known for his interest in marine biology.
Tomiyamichthys is a genus of gobies found from the Red Sea through the Indian Ocean to the western Pacific Ocean.
True gobies were a subfamily, the Gobiinae, of the goby family Gobiidae, although the 5th edition of the Fishes of the World does not subdivide the Gobiidae into subfamilies. They are found in all oceans and a few rivers and lakes, but most live in warm waters. Altogether, the Gobiinae unite about 1149 described species in 160 genera, and new ones are still being discovered in numbers.
Pseudogobiopsis is a genus of fish in the goby family, Gobiidae. They are native to fresh and brackish waters of southern and southeastern Asia. The genus is mainly distinguished by the number and arrangement of fin rays and spines, headpores, and sensory papillae, the large mouths of the males, a fleshy or bony flange on the pectoral girdle, and the shape of the genital papilla.
Parapercis is a genus of sandperches belonging to the fish family Pinguipedidae.
Asterropteryx is a genus of fish in the family Gobiidae found in the Indian and Pacific Ocean.
Egglestonichthys is a genus of gobies native to brackish and marine waters of the Indian Ocean and the western Pacific Ocean.
Hetereleotris is a genus of gobies native to the western Indian Ocean and the western Pacific Ocean.
Lotilia is a small genus of gobies native to the Indo-Pacific region. The members of this genus are commensal with shrimps of the genus Alpheus.
Lubricogobius is a genus of fish in the family Gobiidae found in the Pacific Ocean.
Sueviota is a genus of fish in the family Gobiidae native to the Indian and Pacific Ocean.
Navigobius is a genus of fish in the family Microdesmidae native to the Indo-Pacific Ocean.
Trimma nasa, commonly called the nasal dwarfgoby or nasal pygmy goby, is a species of goby from the Western Pacific. They are small fish, averaging at around 2 cm (0.79 in) in length. They are bright orange and transparent yellow in life, with a white stripe running down from between the eyes to the upper lip and a dark brown spot at the base of the tail fin. They are usually found in large schools in the sloping or vertical drop-offs at coral reef edges.
Trimma caudomaculatum, the blotch-tailed pygmygoby , is a species of goby from the Western Pacific. Like other members of the genus, they are usually found in large schools in the sloping or vertical drop-offs at coral reef edges. Similar to other species of Trimma this species consists of multiple cases of bidirectional sex change, meaning that if a group is lacking in a specific sex a partial amount of the group can change their undeveloped gonad structure of the opposite sex in order to accommodate. This sex change is made possible due to the females having a developed set of ovaries with female hormones that are developed, and a set of testis and male hormones that are underdeveloped; The males follow a similar set up in vice versa, so their testis and male hormones are developed, while the ovaries and female hormones are underdeveloped.
Trimma panemorfum is a species of goby from the deep reefs around 91.4 meters at the Uchelbeluu Reef in Palau in the western Pacific Ocean.
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