Synaptidae
| Synaptidae | |
|---|---|
 | |
| Euapta godeffroyi | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Holothuroideaia |
| Subclass: | Apodacea |
| Order: | Apodida |
| Family: | Synaptidae Burmeister, 1837 [1] |
Synaptidae is a family of sea cucumber that have no tube feet, tentacle ampullae, retractor muscles, respiratory trees, or cuvierian organs. They also lack radial canals of the water-vascular system, with only the circumoral ring present.[2]
Synaptids have elongated bodies, and their size varies significantly from small to quite large. Synapta maculata grows to two metres in length. They are quite active, moving by means of waves of peristaltic contractions. Their tegument is somewhat sticky because of the anchor-like spicules that project through the skin.[3]
Genera
According to World Register of Marine Species:[1]
- genus Anapta Semper, 1867 -- 5 species
- genus Dactylapta Clark, 1908 -- 1 species
- genus Epitomapta Heding, 1928 -- 2 species
- genus Euapta Östergren, 1898 -- 5 species
- genus Eupatinapta Heding, 1928 -- 2 species
- genus Labidoplax Östergren, 1898 -- 6 species
- genus Leptosynapta Verrill, 1867 -- 34 species
- genus Oestergrenia Heding, 1931 -- 9 species
- genus Opheodesoma Fisher, 1907 -- 10 species
- genus Patinapta Heding, 1928 -- 6 species
- genus Polyplectana Clark, 1908 -- 13 species
- genus Protankyra Östergren, 1898 -- 36 species
- genus Rhabdomolgus Keferstein, 1862 -- 1 species
- genus Rynkatorpa Rowe & Pawson, 1967 -- 13 species
- genus Synapta Eschscholtz, 1829 -- 2 species
- genus Synaptula Örstedt, 1849 -- 29 species
Euapta godeffroyi
Opheodesoma grisea
Polyplectana kefersteinii
Synapta maculata.jpg)
See also
References
- 1 2 World Register of Marine Species
- ↑ Lambert, P. 1997. Sea cucumbers of British Columbia, southeast Alaska and Puget Sound. Univ. of British Columbia Press, Vancouver.
- ↑ Marine Species Identification Portal
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