English: Toothcarps.
Synonym: Microcyprini.
Temporal range: Oligocene–recent.
Habitat: freshwater; extreme environments, saline,very warm waters, heavily polluted waters, rain water pools devoid of minerals, acidic by decaying vegetation, isolated situations; near the surface, oxygen-rich water.
Use: popular aquarium fish, such as killifish and live-bearers.
ZoologyRay-finned fish; small mouths, large eyes.
Size: mostly small, small to medium-sized.
Food: carnivores, ants, insects, worms, aquatic crustaceans, protozoans, plant material, algae; killifish derive carotenoids and other chemicals and pigments required to make their body pigment.
Fins: single dorsal fin, and a rounded caudal fin.
Size: 8 mm to 34 cm long.
TaxonomyCyprinodontiformes are closely related to the
Atheriniformes and are occasionally included with them.
FamiliesSuborder Aplocheiloidei: all oviparous.
• Aplocheilidae Asian killifishes
Suborder Cyprinodontoidei
Superfamily Funduloidea
• Profundulida: Central American killifishes, oviparous.
• Goodeidae: Splitfins, largely viviparous.
• Fundulidae: Topminnows, North American killifishe, oviparous.
Superfamily Valencioidea: oviparous.
• Valenciidae: Mediterranean killifishes.
Superfamily Cyprinodontoidea, oviparous.
• Cyprinodontidae: Pupfishes.
Superfamily Poecilioidea
• Anablepidae: Four-eyed fishes and relatives, largely ovoviviparous.
•
Poeciliidae: Livebearers and relatives, some oviparous, some ovoviviparous.