APHOTOMARINE

An Educational Photographic Resource and Stock Image Library
of the Sea, Maritime Environment, Marine and Rockpool Life in the
Coastal Waters of South-West England by David Fenwick.

Dynamene bidentata (Adams, 1800) - An Isopod (Isopoda Images)
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Isopoda
Dynamene bidentata
- saw wrack / male side view 1

Isopoda
Dynamene bidentata
- saw wrack / male top view 1

Isopoda
Dynamene bidentata
- saw wrack / male top view 2

Isopoda
Dynamene bidentata
- saw wrack / male underside 1

Isopoda
Dynamene bidentata
- saw wrack / female 1

Isopoda
Dynamene bidentata
- rock crevice / male top view 1

Isopoda
Dynamene bidentata
- rock crevice / male top view 2

Isopoda
Dynamene bidentata
- white berried female 1

Isopoda
Dynamene bidentata
- white berried female 2

Isopoda
Dynamene bidentata
- white berried female 3

Isopoda
Dynamene bidentata
- white berried female 4

Isopoda
Dynamene bidentata
- white berried female 5

When the the females of the species are mated they moult and turn white, they are then called 'berried'. Males can have a harem, a collection of up to 10 females around them. When white the females can easily be confused with other isopods, Sphaeroma and Lekanesphaera, although these may curl up into a ball when disturbed. White Dynamene females can be distinguished from these by the notch in middle of the rear segment. The eggs of Dynamene are kept in the females ventral pouch until released, the females die soon after. The females live for a year, the males two years. Produced with the assistance of David Holdich.

Images of species taken at Spit Point, Par, near St. Austell, 12.06.10; and at Lariggan Rocks, Wherry Town, Penzance, Cornwall. Species found amongst and at the base of Saw Wrack on the middle and lowershore; also within rock crevices.

Dynamene bidentata Marine Animal Resembling Woodlouse Isopoda Images
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