APHOTOMARINE

An educational resource dedicated mainly to the photography
and diversity of marine life that can be found in coastal waters
and intertidal areas of Great Britain and Ireland by David Fenwick.

A-P-H-O-T-O Wildlife Stock Image Library
Tetrastemma ambiguum Riches, 1893 ? - A tetrastemmatid nemertean (Nemerteans)
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Tetrastemmatid nemertean
Tetrastemma ambiguum ?
- worm 1

Tetrastemmatid nemertean
Tetrastemma ambiguum ?
- worm 2

Tetrastemmatid nemertean
Tetrastemma ambiguum ?
- worm 3

Tetrastemmatid nemertean
Tetrastemma ambiguum ?
- worm 4

Tetrastemmatid nemertean
Tetrastemma ambiguum ?
- worm 5

Tetrastemmatid nemertean
Tetrastemma ambiguum ?
- dorsal view anterior 1

Tetrastemmatid nemertean
Tetrastemma ambiguum ?
- dorsal view anterior 2

Tetrastemmatid nemertean
Tetrastemma ambiguum ?
- dorsal view anterior under microscope 1

Tetrastemmatid nemertean
Tetrastemma ambiguum ?
- dorsal view anterior under microscope 2

Tetrastemmatid nemertean
Tetrastemma ambiguum ?
- stylet within proboscis under microscope 1

Tetrastemmatid nemertean
Tetrastemma ambiguum ?
- stylet and accessory stylets under microscope 1

Tetrastemmatid nemertean
Tetrastemma ambiguum ?
- stylet under microscope 1

Tetrastemmatid nemertean
Tetrastemma ambiguum ?
- accessory stylets under microscope 1

Tetrastemmatid nemertean
Tetrastemma ambiguum ?
- accessory stylet under microscope 1

Tetrastemmatid nemertean
Tetrastemma ambiguum ?
- mussel rope from seabed 1

The specimen above was found in washings taken from an old mussel rope that was on the bottom and got caught up grab during commercial sampling offshore in St. Austell Bay, Cornwall, 23.06.22.

Thanks go to Greg Lingard and Mike Field of Ecospan Environmental Ltd. for allowing me to take samples from the rope.

Old fishing gear can attract a multitude of small invertebrate species and as such by removing marine refuse like this and sampling from it we can best determine localized biodiversity with minimal damage to the environment.

Tetrastemma ambiguum tetrastemmatid tetrastemmatidae ribbon worm nemertean images
The main objective of this website is in furthering environmental awareness and education through the medium of photography. To increase awareness and access to the wildlife of the region and help
people find and identify it. Sometimes the difference between species is obvious but many species can only be determined by observing microscopic characteristics that are specific to any one species.