Molecular Biology and Genetics
Barcode data: Parastichopus parvimensis
There is 1 barcode sequence available from BOLD and GenBank. Below is the sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species. See the BOLD taxonomy browser for more complete information about this specimen. Other sequences that do not yet meet barcode criteria may also be available.
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Statistics of barcoding coverage: Parastichopus parvimensis
Public Records: 1
Specimens with Barcodes: 1
Species With Barcodes: 1
|This article does not cite any references or sources. (February 2007)|
The Warty Sea Cucumber (Parastichopus parvimensis) is a Sea Cucumber that can be found from the Gulf of Alaska to southern California. It is found from the low intertidal zone to a depth of 250 m. They are most abundant in areas with moderate current with cobbles, boulders or bedrock.
The Warty Sea Cucumber can grow to a length of 60 cm and a width of 5 cm. It has a soft, cylindrical body, with red-brown to yellowish leathery skin. There are numerous grey spots along its body, hence the name 'warty'. It has an endoskeleton just below the skin. The mouth and anus are on opposite sides of the body. The mouth is surrounded by ten retractable tentacles that are used to bring food in. Five rows of tube feet extend from the mouth to the anus. Mobility is limited, though individuals can move up to 4 m per day while feeding.
Behavior and reproduction
P. parvimensis is a solitary nocturnal animal. It has the ability to regenerate all parts of its body. When threatened, it can expel all its internal organs through its anus and grow new ones. It can also expel sticky filaments to ensnare or confuse predators. It undertakes seasonal migrations to different depths.
These Sea Cucumbers have separate sexes, and eggs are fertilized externally. Spawning usually takes place in November, and each female can produce thousands of eggs. After fertilization, a larva is formed which metamorphoses into a Sea Cucumber after a few weeks.
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