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Spiral Tube-worm

Sabella spallanzanii

Description:

Is a fairly large sessile annelid, is a segmented worm that lives in a leathery consistency tube made ​​of mucus and mud or other small particles. The tube is 30-60 cm long, 10-25 mm wide, and no closure. The body of 9-40 cm long, has 200 segments over 300 and are not fixed to the tube. It is subdivided into: head, thorax and abdomen, the latter being the longest. Two appendices in a crown head tentacles carry power, feather-like, of which only one is coiled with a diameter of 10-15 cm. The tentacles are about 300 bands of white, yellow, brown and violet, which also function as gills. In the chest, with no more than 12 segments, the parapodia, pairs of lateral projections of the skin, has straight bristles dorsal and ventral hooked bristles. In the abdomen, the bristles are in the opposite direction. The faeces are conveyed from the anus to the end of the tube along a groove ciliated in the ventral abdomen and the back of the chest, to be ejected into the tube opening.

Habitat:

Duster Worm sea often exposed to strong currents and feed on minute particles of organic matter and microorganisms that filters water through the crown of tentacles.

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NatzZepol
Spotted by
NatzZepol

Guánica, Puerto Rico, Puerto Rico

Spotted on Mar 15, 2013
Submitted on Mar 15, 2013

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