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| 5-15cm.
Body flat, thick. Upperside neat rounded bumps. Arms rather short
with rounded tips. Underside pale with blue edges along the under-arm
grooves. No large pedicellariae on the underside. Among seagrasses
and in coral rubble. Sometimes seen on our Northern shores. |
7-15cm.
Body flat, thick. Upperside many spiny bumps. Arms long, rounded tips.
Body bordered by large, block-like scalloped plates with huge pedicellaria.
and spines on the arms. Underside plain. Seagrass meadows, coral rubble.
Sometimes see on our Northern shores. |
10-20cm.
Body slighty convex on upperside, thick. Upperside tiny pedicellaria.
Arms short with rounded tips. Body bordered by large block-like plates
with huge pecidellaria. Underside often with chevron pattern of bars.
Coral rubble. Sometimes seen on our Northern shores. |
Up
to 30cm. Body hard, heavy. Arms long, tapering to rounded tip, thick
triangular in crossection. Tube feet with suckers are bright red or
purple. Colours mostly red, also white or brown. Knobs black or brown.
Coral rubble. Sometimes seen on some of our shores. |
About
20cm. Body hard, heavy. Arms long, tapering to rounded tip, thick
triangular in crossection. Regular pattern of pale knobs. Seagrass
and coral rubble. Seen on Cyrene Reef. |
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| 12-15cm.
Body somewhat rounded. 5 arms long, tapering to sharp tip, edged with
short flat, blunt spines. Tube feet with sucker tips. Colours and
patterns are highly variable in shades of greyish blue, to brown and
beige. Sand bars and sandy lagoon bottoms. Commonly seen in large
numbers on some shores. |
12-15cm. Body somewhat rounded. 8 arms long, tapering to sharp tip,
edged with tiny sharp spines. Tube feet with pointed tips. Colours
and patterns are highly variable in shades of greyish blue, to brown
and beige, with a darker star-shaped pattern in the centre, and dark
bars along the length of the arms. Sandy areas near seagrass meadows.
Sometimes seen alone on our Northern shores. |
8-10cm.
Body somewhat rounded. Usually five arms long, tapered to a pointed
tip, edged with tiny spines. Tube feet with pointed tips. Upperside
plain, beige or pale greyish pink. Silty sandy area. Sometimes seen
on Changi. |
10-15cm.
Body rather flat. Arms long, tapered to a sharp tip with large marginal
plates, stout flat pointed spines on the sides. Tube feet pointed.
Upperside beige often with bluish margins, underside bright orange.
Sandy shores. Rarely seen on some of our shores. |
12-20cm.
Arms very short, body almost globular. Coral rubble, living reefs.
Sometimes seen on some of our Southern shores. |
