There are more than 3,000 species of marine fish, including more than 2,000 kinds of marine fish and more than 1,000 kinds of freshwater fish. Mainly divided into:
Snapper family, totoabaceae, catfish family, bass family, catfish family, salmon family, jawed needlefish family, sea crucian family, single-fin fish family, pomfret family, sparrow family, pike family, bream family, mackerel family, tuna family, mullet family, eel family, money fish family, flounder family (crucian carp, wood leaf flounder family, moray family, moray family, sea bream family
Details of some family genera:
1. Baanaceae

Chinese scientific name
Bassidae
Latin scientific name
Serranidae
world
animal kingdom
door
Chordata
subphylum
Vertebrate subphylum
class
Bony fish
subclass
Suborder Radiata
eye
Perciformes
suborder
Suborder Perciformes
section
Morphological characteristics
The whole (even the head) is scaled, and the surface of the scales is slightly rougher, like felt hair. The side lines are complete. The hypopharyngeal bone is not bound, and the maxilla is not covered by the bone in front of the eye. The plough bone and palate bone usually have teeth. The fins of the pectoral fins are mostly similar and divergent. The dorsal fin is single, with a soft fin with a longer fin and 3 spines.

Habits of life
Most are marine and a few are freshwater. Most of them are diurnal fish, and due to the large number of species, they have a rather complex ecological layer. Most of them are benthic fish species with territorial and mimetic behaviors. The vast majority feed on fish, shrimp, crabs, end-footed, etc., and are ferocious predators. The subfamily Pseudanthias and Sacura are gregarious, foraging in water layers during the day, feeding on plankton, and hiding in caves between coral reefs at night.
The body color of the species is bright and varied, and there are phenomena such as dichrobial and female to male transformation. Some fish species, such as parrotfish and bulbophyllum, also have the ecological adaptation behavior of social class status control phenomena. Some are nocturnal fish that live alone in the holes at the bottom of coral reefs or rock reefs during the day and forage outside at night, such as the black perch (Grammistes), and when frightened, they secrete a large amount of mucus on the surface of the body, which has a soap bubble effect and contains poisonous grammistin, so it is not edible.
Geographical distribution
It is widely distributed in tropical to temperate waters, and a few are freshwater species.
Category segmentation
There are 81 genera under the family Batus, as follows:
1, Acanthistius
Brazilian stingray (Acanthistius brasilianus)
Acanthistius cinctus
Acanthistius ocellatus
Leopard-striped bass (Acanthistius pardalotus)
Acanthistius patachonicus
Acanthistius paxtoni
Acanthistius pictus
Acanthistius sebastoides
Acanthistius serratus
2. Genus Alphestes
Alphestes afer
Alphestes immaculatus
Alphestes multiguttatus
3. Genus Anatolanthias
Anatolanthias apiomycter
4, Anthias
Anthias anthias
Anthias asperilinguis
Anthias connelli
Anthias fasciatus
Anthias lunulatus
Anthias menezesi
Anthias nicholsi
Anthias pascalus
Embroidered bass (Anthias pictilis)
Anthias pleurotaenia
Anthias pulcherrimus
Anthias taeniatus
Anthias tenuis
Anthias tuka
Anthias woodsi
5. Anyperodon
Anyperodon leucogrammicus: Also known as white-lined light-jawed bass.
6. Genus Aporopus
Plaque less porous seabream (Aporops allfreei)
Aporops bilinearis: Also known as double-line gills.
7. Aulacocephalus
Glass perch (Aulacocephalus temminckii)
8. Bathyanthias
Bathyanthias mexicana
9. Belonoperca
Bass (Belonoperca chabanaudi)
10. Bullisichthys
Caribbean puffed sea bass (Bullisichthys caribbaeus)
11. Caesioperca
Caesioperca lepidoptera
Caesioperca rasor
Caesioperca thompsoni
12. Caesioscorpis
Caesioscorpis theagenes
13, Hishiji Sushi (Caprodon)
Caprodon longimanus
Caprodon schlegelii: Also known as heterogby.
Monochrome rhododendon (Caprodon unicolor)
14. Centropristis
Centropristis fuscula
Centropristis ocyurus
Philadelphia sawfish (Centropristis philadelphica)
Centropristis striata
15. Cephalopholis
Cephalopholis acanthistius
Redfin nine-spined perch (Cephalopholis aitha)
Cephalopholis argus: Also known as spotted nine-spined bass.
Cephalopholis aurantia: Also known as the red-spotted nine-spiny bass.
Cephalopholis boenak : Also known as the transverse nine-spined bass.
Cephalopholis cruentata
Cephalopholis cyanostigma
Taiwan nine-spined perch (Cephalopholis formosa): Also known as Taiwan nine-spined bass.
Cephalopholis fulva
Cephalopholis hemistiktos
Cephalopholis igarashiensis: Also known as fifty-nine spiny bass.
Cephalopholis leopardus: Also known as leopard-striped nine-spined bass.
Cephalopholis microprion
Cephalopholis miniata: Also known as Blue Star Nine Thorns.
Cephalopholis nigri
Cephalopholis nigripinnis
Lesser nine-spined perch (Cephalopholis oligosticta)
Cephalopholis polleni
Purple nine-spined perch (Cephalopholis purpureus)
Cephalopholis sexmaculata: Also known as six-spotted bass.
Cephalopholis sonnerati : Also known as the Song's nine-spined bass.
Cephalopholis spiloparaea: Also known as the black-edged nine-spined bass.
Blue-spotted nine-spined perch (Cephalopholis taeniops)
Cephalopholis urodeta: Also known as the caudal nine-spined bass.
16, Red Sushi Genus (Chelidoperca)
Chelidoperca hirundinacea: Also known as small flower perch.
Chelidoperca margaritifera
Chelidoperca pleurospilus: Also known as the black-spotted perch.
17. Cratinus
Cratinus agassizii
18. Cromileptes
Cromileptes altivelis: Also known as bass.
19. Genus Dermatolepis
Striped scaly bass (Dermatolepis dermatolepis)
Dermatolepis inermis
Dermatolepis striolatus
20. Diplectrum
Diplectrum bivittatum
Diplectrum conceptione
Diplectrum eumelum
Diplectrum euryplectrum
Diplectrum formosum
Diplectrum labarum
Diplectrum macropoma
Diplectrum maximum
Diplectrum pacificum maximum
Diplectrum pacificum pacificum sushi
Diplectrum radiale
Diplectrum rostrum
Diplectrum sciurus
21. Diploprion
Diploprion bifasciatum: Also known as double-banded perch.
Diploprion drachi
22. Genus Dules
Dules auriga
23, Ama Sushi Genus (Ellerkeldia)
Ellerkeldia annulata
Ellerkeldia jamesoni Sushi
Ellerkeldia maccullochi
Red-banded bass (Ellerkeldia rubra)
Ellerkeldia wilsoni
24. Epinephelides
Epinephelides armatus
25. Grouper genus Epinephelus
Eastern Pacific grouper (Epinephelus acanthistius)
Epinephelus adscensionis
Bronze grouper (Epinephelus aeneus)
Epinephelus akaara
Epinephelus albomarginatus
Epinephelus amblycephalus
Epinephelus analogus
Epinephelus andersoni
Epinephelus areolatus
Blue grouper (Epinephelus awoara)
Epinephelus bilobatus
Epinephelus bleekeri: Also known as orange grouper.
Epinephelus bontoides
Brown grouper (Epinephelus bruneus)
Epinephelus caninus
Epinephelus chabaudi
Epinephelus chlorocephalus
Epinephelus chlorostigma: Also known as reticulated grouper.
Costa Rican grouper (Epinephelus cifuentesi)
Epinephelus coeruleopunctatus: Also known as the blue-spotted grouper.
Epinephelus coioides
Epinephelus corallicola: Also known as coral grouper.
Mediterranean grouper (Epinephelus costae)
Epinephelus cyanopodus: Also known as high-body grouper, bluefin grouper.
Epinephelus daemelii
Darwin grouper (Epinephelus darwinensis)
Epinephelus diacanthus
Epinephelus drummondhayi
Epinephelus epistictus
Epinephelus ergastularius
Red brown grouper (Epinephelus erythrus)
Epinephelus esonue
Panamanian grouper (Epinephelus exsul)
Epinephelus fasciatomaculosus
Epinephelus fasciatus: Also known as black-sided grouper.
Nest grouper (Epinephelus faveatus)
Yellowfin grouper (Epinephelus flavocaeruleus)
Epinephelus flavolimbatus
Brown-spotted grouper (Epinephelus fuscoguttatus)
Omani grouper (Epinephelus gabriellae)
Epinephelus goreensis
Epinephelus grasa
Epinephelus guttatus
Epinephelus haifensis
Epinephelus heniochus
Epinephelus hexagonatus
Epinephelus howlandi
Somali grouper (Epinephelus indistinctus)
Epinephelus inermis
Oceanian grouper (Epinephelus irroratus)
Epinephelus itajara
California grouper (Epinephelus labriformis)
Epinephelus lanceolatus
Epinephelus latifasciatus
Mysterious grouper (Epinephelus lebretonianus)
Epinephelus longispinis
Epinephelus macrospilos
Epinephelus maculatus
Epinephelus magniscuttis
Epinephelus malabaricus
Epinephelus marginatus
Black-spotted grouper (Epinephelus melanostigma)
Epinephelus merra: Also known as honeycomb grouper.
Epinephelus miliaris
Epinephelus morio
Epinephelus morrhua: Also known as bow grouper.
Epinephelus multinotatus
Epinephelus mystacinus
Light black grouper (Epinephelus nigritus)
Mexican grouper (Epinephelus niphobles)
Epinephelus niveatus
Epinephelus octofasciatus: Also known as eight-banded grouper.
Epinephelus ongus
Epinephelus panamensis
Southern Queensland grouper (Epinephelus perplexus)
Epinephelus poecilonotus
Epinephelus polylepis
Epinephelus polyphekadion
Epinephelus polystigma
South African grouper (Epinephelus posteli)
Hawaiian grouper (Epinephelus quernus)
Epinephelus quoyanus
Epinephelus radiatus: Also known as electric grouper.
Epinephelus retouti: Also known as red-tipped grouper.
Epinephelus rivulatus: Also known as half-moon grouper.
Epinephelus septemfasciatus
Epinephelus sexfasciatus
Epinephelus socialis
Epinephelus spilotoceps
Epinephelus stictus
Epaulence grouper (Epinephelus stoliczkae)
Nassau grouper (Epinephelus striatus)
Epinephelus suborbitalis
Epinephelus summana
Epinephelus tauvina: Also known as giant grouper.
Epinephelus timorensis
Epinephelus trimaculatus
Epinephelus trophis
Epinephelus tuamotuensis
Epinephelus tukula
Epinephelus undulatostriatus
Corrugated grouper (Epinephelus undulosus)
26. Genus Giganthias
Giganthias immaculatus: Also known as the giant spiny perch.
27. Genus Gonioplectrus
Gonioplectrus hispanus
28. Gracila
Gracila albomarginata: Also known as white-edged perch.
Gracila okinawae
29. Gracilia
Skinny grouper (Gracilia albomarginatus)
30. Grammistes
Grammistes sexlineatus: Also known as six-lined black perch.