sirenidae การใช้

• The position of the Sirenidae is disputed; the position shown is considered by Naish to explain the data best.
• The third suborder, Sirenoidea, contains the four species of sirens, which are in a single family, Sirenidae.
• Other, more distantly related salamander families also contain fully or in part aquatic species, such as the mole salamanders, the Proteidae, or the Sirenidae.
• Certain primitive salamanders in the families Sirenidae, Hynobiidae and Cryptobranchidae practice external fertilisation in a similar manner to frogs, with the female laying the eggs in water and the male releasing sperm onto the egg mass.
• They are present on non-transforming salamander species, such as most members of the Proteidae family ( the olm and mudpuppies ) and the Sirenidae family, which naturally never metamorphose into an air-breathing form.