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1, 2) Sand worms ( Hermella ): 1) Tubes of Hermella alveolata with its inhabitants (2). 3) Shell tube worm ( Terebella emmalina )
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The third group of tube worms is formed by the gillheads ( Cephalobranchiata ), so called, because the softened thread or tree-shaped appendages for breathing are at the head or at least at the anterior segments. They inhabit tubes from which they never emerge voluntarily. Accordingly, the appendages of most segments, except the anterior ones, are much less developed than those of the free-living many-bristles, and the way of life is more peaceful, as evidenced by the absence of dental plates in the oral cavity.
- Author
- The Life of the Animals, Part 3, Chapter 6
The Worms
By AE Brehm
Captions are translated from the original Dutch by online means
Available from gutenberg.org - Posted on
- Monday 27 July 2020
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- 960*1080
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