|Smallmouth bass (M. dolomieu)|
The black basses are distributed throughout a large area east of the Rocky Mountains in North America, from the Hudson Bay basin in Canada to northeastern Mexico. Several species, notably the Largemouth and Smallmouth basses, have been very widely introduced throughout the world, and are now considered cosmopolitan. Black bass of all species are highly sought-after game fish, and bass fishing is an extremely popular sport throughout the bass's native range. These fish are well known as strong fighters, and their meat is eaten, being quite edible and firm.
All Micropterus species have a dull-green base colouring with dark patterns on the sides. Most reach a maximum overall length of 40–60 cm (16–24 in), but some strains of the largemouth bass have been reported to grow to almost a full meter (just over three feet) in length.
The male builds a "bed" (nest) in which a female is induced to deposit her eggs and then fertilizes them. The male continues to guard the eggs and fry until they disperse from the nest.
In Japan, to which the black basses are not native, frequent attempts have been made to eradicate various species of the fish.
There are currently 14 recognized species in this genus:
- Micropterus cahabae W. H. Baker, Blanton & C. E. Johnston, 2013 (Cahaba bass) 
- Micropterus cataractae J. D. Williams & G. H. Burgess, 1999 (Shoal bass)
- Micropterus chattahoochae W. H. Baker, Blanton & C. E. Johnston, 2013 (Chattahoochee bass) 
- Micropterus coosae C. L. Hubbs & R. M. Bailey, 1940 (Redeye bass)
- Micropterus dolomieu Lacépède, 1802 (Smallmouth bass)
- Micropterus floridanus Lesueur, 1822
- Micropterus haiaka Tringali & al., 2013 (Choctaw bass)
- Micropterus henshalli C. L. Hubbs & R. M. Bailey, 1940 (Alabama bass)
- Micropterus notius R. M. Bailey & C. L. Hubbs, 1949 (Suwannee bass)
- Micropterus punctulatus Rafinesque, 1819 (Spotted bass)
- Micropterus salmoides Lacépède, 1802 (Largemouth black bass)
- Micropterus tallapoosae W. H. Baker, Blanton & C. E. Johnston, 2013 (Tallapoosa bass) 
- Micropterus treculii Vaillant & Bocourt, 1874 (Guadalupe bass)
- Micropterus warriorensis W. H. Baker, Blanton & C. E. Johnston, 2013 (Warrior bass) 
- Rohde, F. C., et al. Freshwater Fishes of the Carolinas, Virginia, Maryland, and Delaware. Chapel Hill: University of North Carolina Press, 1994.
- "Locals in for long haul in battle against non-native fish". Asahi Shimbun. 6 July 2007. Archived from the original on 29 September 2007. Retrieved 12 June 2014.
- Baker, W.H., Blanton, R.E. & Johnston, C.E. (2013): Diversity within the Redeye Bass, Micropterus coosae (Perciformes: Centrarchidae) species group, with descriptions of four new species. Zootaxa, 3635 (4): 379–401.