Macrodasyida is an
order
Order, ORDER or Orders may refer to:
* A socio-political or established or existing order, e.g. World order, Ancien Regime, Pax Britannica
* Categorization, the process in which ideas and objects are recognized, differentiated, and understood
...
of
gastrotrich
The gastrotrichs (phylum Gastrotricha), commonly referred to as hairybellies or hairybacks, are a group of microscopic (0.06–3.0 mm), cylindrical, acoelomate animals, and are widely distributed and abundant in freshwater and marine en ...
s.
Members of this order are somewhat worm-like in form, and not more than 1 to 1.5 mm in length.
Macrodasyids are almost in entirely marine and live in the sediment in marine or brackish water, but two species have been discovered in freshwater.
They can be distinguished from other gastrotrichs by the presence of two pores on either side of the pharynx, that allow excess water to be expelled during feeding. The body is dorsally flattened and there are tubular adhesive glands at both ends and on the lateral surfaces. These animals are
detritivore
Detritivores (also known as detrivores, detritophages, detritus feeders or detritus eaters) are heterotrophs that obtain nutrients by consuming detritus (decomposing plant and animal parts as well as feces). There are many kinds of invertebrates, ...
s and are
hermaphrodite
A hermaphrodite () is a sexually reproducing organism that produces both male and female gametes. Animal species in which individuals are either male or female are gonochoric, which is the opposite of hermaphroditic.
The individuals of many ...
s.
Families
*
Cephalodasyidae
Cephalodasyidae is a family of worms belonging to the order Macrodasyida
Macrodasyida is an order (biology), order of gastrotrichs. Members of this order are somewhat worm-like in form, and not more than 1 to 1.5 mm in length.
Macrodasyi ...
Hummon & Todaro, 2010
*
Dactylopodolidae
Dactylopodolidae is a family of worms belonging to the order Macrodasyida
Macrodasyida is an order (biology), order of gastrotrichs. Members of this order are somewhat worm-like in form, and not more than 1 to 1.5 mm in length.
Macrodasy ...
Strand, 1929
*
Hummondasyidae Todaro, Leasi & Hochberg, 2014
*
Lepidodasyidae
Lepidodasyidae is a family of worms belonging to the order Macrodasyida
Macrodasyida is an order (biology), order of gastrotrichs. Members of this order are somewhat worm-like in form, and not more than 1 to 1.5 mm in length.
Macrodasyid ...
Remane, 1927
*
Macrodasyidae
Macrodasyidae is a family of worms belonging to the order Macrodasyida
Macrodasyida is an order (biology), order of gastrotrichs. Members of this order are somewhat worm-like in form, and not more than 1 to 1.5 mm in length.
Macrodasyids ...
Remane, 1924
*
Planodasyidae
Planodasyidae is a family of worms belonging to the order Macrodasyida
Macrodasyida is an order (biology), order of gastrotrichs. Members of this order are somewhat worm-like in form, and not more than 1 to 1.5 mm in length.
Macrodasyids ...
Rao & Clausen, 1970
*
Redudasyidae
Redudasyidae is a family of worms belonging to the order Macrodasyida
Macrodasyida is an order (biology), order of gastrotrichs. Members of this order are somewhat worm-like in form, and not more than 1 to 1.5 mm in length.
Macrodasyids ...
Todaro, Dal Zotto, Jondelius, Hochberg, Hummon, Kanneby & Rocha, 2012
*
Thaumastodermatidae
Thaumastodermatidae is a family of worms belonging to the order Macrodasyida
Macrodasyida is an order (biology), order of gastrotrichs. Members of this order are somewhat worm-like in form, and not more than 1 to 1.5 mm in length.
Macrod ...
Remane, 1927
*
Turbanellidae
Turbanellidae is a family of worms belonging to the order Macrodasyida
Macrodasyida is an order (biology), order of gastrotrichs. Members of this order are somewhat worm-like in form, and not more than 1 to 1.5 mm in length.
Macrodasyids ...
Remane, 1926
*
Xenodasyidae
Xenodasyidae is a family of worms belonging to the order Macrodasyida
Macrodasyida is an order (biology), order of gastrotrichs. Members of this order are somewhat worm-like in form, and not more than 1 to 1.5 mm in length.
Macrodasyids ...
Todaro, Guidi, Leasi & Tongiorgi, 2006
References
Gastrotricha
Spiralian orders
{{Protostome-stub