Coloured SEM of Sipunculid peanut worm,Phascolion
Numéro d’image : 11906798
| Peanut worm. Coloured Scanning Electron Micrograph (SEM) of a sipunculid or "peanut" worm Phascolion sp. This tiny marine worm (phylum: Sipuncula) lives as meiofauna in wet beach sand. At top is its mouth with cilia and sharp curved hooks; behind the mouth is a narrow neck or introvert which can elongate but is seen here retracted; at bottom is the swollen trunk. This pear-shaped body enables Phascolion to push its way between sand grains,anchor itself with hooks,then pull its body along. It feeds on sand and removes micro- organisms in the sand like bacteria. Meiofauna play an essential role in keeping beaches clean. Magnification: x260 at 5x7cm size. x445 at 4x5 | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Scharf, David |
| Taille de l’image : | 3072 px × 4048 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : |
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