Distribution in scandinavian waters
Maximum length: 9 cm without the corner spines. The egg capsule
from a skate can be as long as 25 cm.
Appearance: The black horn shell egg capsule is rectangular in
shape and more or less covered with tangled fibres. The four corners
are drawn out in pointed spines. Egg capsules that get washed up are
always empty, and usually open along one of the short sides.
Depth: In the seas around Sweden the skate can live as deep as
1000 m. Their egg capsules are usually found washed up onto the beach.
Misc: Even the lesser spotted dogfish lays egg capsules. The
small spotted dogfish´s egg capsules that get washed up onto the
beaches of the Skagerrak
and Kattegat, are brown, 2 cm wide and 6 cm long.
Classification: Rays and skates belong to the cartilaginous fish
group, which is part of the vertebrate group.