- The
Diadematidae are a
family of sea urchins.
Their tests are
either rigid or
flexible and
their spines are long and hollow.
Astropyga Gray, 1825 Astropyga...
-
setosum is a
species of long-spined sea
urchin belonging to the
family Diadematidae. It is a
typical sea urchin, with
extremely long,
hollow spines that...
- the long-spined sea urchin, is a
species of sea
urchin in the
family Diadematidae. This sea
urchin is
characterized by its
exceptionally long
black spines...
-
family Diadematidae. The
banded sea
urchin has a
slightly oval test (s****),
reaching a
diameter of
about 5 cm. Like
almost all the
Diadematidae (but it...
-
urchin or blue-spotted urchin, is a
species of sea
urchin in the
family Diadematidae. It is a
large species with long
spines and is
found in the tropical...
- species,
protect the
urchin from predators. Some
tropical sea
urchins like
Diadematidae,
Echinothuriidae and
Toxopneustidae have
venomous spines.
Other creatures...
- 5 in). If the
spines enter into count, the
biggest species may be a
Diadematidae like
Diadema setosum, with a test up to 10 cm (3.9 in) only, but its...
- with
different microstructure, in a
similar way to the
spines of some
Diadematidae (especially Echinothrix) and Toxopneustidae. The
secondary spines are...
- The list of
echinoderms of
South Africa is a list of
species that form a part of the
echinoderm (Phylum Echinodermata)
fauna of
South Africa, and includes...
-
Diadema is a
genus of sea
urchins of the
family Diadematidae. It is one of the most abundant, widespread, and
ecologically important shallow water genera...
