Kinorhyncha

Kinorhyncha (, ' "snout") is a phylum of small marine invertebrates that are widespread in mud or sand at all depths as part of the meiobenthos. They are commonly called mud dragons'''. Modern species are or less, but Cambrian forms could reach .

Cyclorhagida is a class of kinorhynchs, small marine invertebrates that are widespread in mud or sand at all depths as part of the meiobenthos, commonly known as mud dragons.

Echinoderidae is a family of kinorhynchs (also known as mud dragons) in the class Cyclorhagida.

Pycnophyidae is a family of kinorhynchs in the class Allomalorhagida.

Centroderidae is a family of kinorhynchs belonging to the class Cyclorhagida.

Semnoderidae is a family of worms belonging to the class Cyclorhagida.

Cateriidae is a family of kinorhynchs placed either in the class Cyclorhagida (according to Sørensen et al.) or Allomalorhagida (according to Herranz et al.). It consists of a single genus, Cateria Gerlach, 1956.

Neocentrophyidae is a family of kinorhynchs in the class Allomalorhagida.

Zelinkaderidae is a family of worms belonging to the class Cyclorhagida.

Antygomonas is a genus of cyclorhagids. It is the only genus in the family Antygomonidae Adrianov & Malakhov, 1994. Species of Antygomonas are commonly referred to as "mud dragons."

Echinoderes is a genus of mud dragons first described in 1863. It is the largest genus within the phylum Kinorhyncha. It is a highly diverse genus, with member species that inhabit "most marine benthic substrates, on latitudes ranging from the Arctic to the tropics, and from the intertidal zone down to the deep sea." Species on the east coasts of North and South America have been extensively studied by Robert P. Higgins. Species in east Asia have been extensively studied by A. V. Adrianov.

Zelinkaderes is a genus of worms belonging to the family Zelinkaderidae.

species of kinorhynchans

Fissuroderes is a genus of kinorhynchs in the family Echinoderidae.

species of kinorhynchans

species of kinorhynchans

species of kinorhynchans

Pycnophyes is a genus of mud dragons belonging to the family Pycnophyidae.

Dracoderidae is a family of worms belonging to the class Cyclorhagida.

species of small marine invertebrate

Meristoderes is a genus of kinorhynchs in the family Echinoderidae.

REDIRECT Cateria

thumb | right | alt=Paracentrophyes quadridenta | Paracentrophyes quadridenta Paracentrophyes is a genus of worms belonging to the family Neocentrophyidae.