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| 3-4cm.
Arms so short that it appears almost pentangonal. Under stones near
the mid-water mark. Some parts of Pulau Semakau. |
3-5cm.
Body plump (not flat), 5 arms short plump with rounded tips. Colours
plain or mottled beige, brown or grey. Sometimes, bright orange. Under
stones, on coral rubble, sometimes in seagrass areas nearby. Commonly
seen on our Northern shores. |
5-7cm.
Body rounded (not flat) with long half-cylindrical arms with rounded
tips. Usually 5 arms, but 4 and 6 arms seen. Upperside with tiny scales,
stubby tube feet emerge among the scales. Upper surface blends well
with the muddy bottom. Underside
reddish. Sometimes seen on sandy areas near seagrasses. Sometimes
seen on our Northern shores. |
About
11cm. Body rounded (not flat) with long half-cylindrical arms with
rounded tips. Upperside with tiny scales, stubby tube feet emerge
among the scales. Underside plain. Rare. |
About
8cm. Long skinny arms with large smooth marginal plates, sparse short
stumpy spines. Underside is white with colourful markings. Seen once
at Sentosa. |
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| 4-6cm.
Body rather flat. Arms long, tapered to a sharp tip with stout flat
pointed spines on the sides. Spines tinged a bright orange. Tube feet
pointed. Colours plain bluish brown, with a darker brown centre and
stripes down the length of the arms. The tips of the arms are black.
Sandy shores. Commonly seen on our Northern shores. |
6-8cm.
Body rather flat. Arms long, tapered to a sharp tip with large marginal
plates, stout flat pointed spines on the sides. Spines tinged a pale
orange. Tube feet pointed. Colours a light blue background with darker
blue stripes down the length of the arms with black tips. Sometimes
with darker blue bands near the arm tips. Sandy shores. Commonly seen
on our Northern shores. |
About
10cm. Body flat. Arms long, tapered to a sharp tip with large marginal
plats, no spines. Usually blue. Rarely seen. On our Northern shores
near reefs. |
About
2 cm. Arms short, unequal in length, usually seven. On living reefs. Sometimes
seen on our Southern shores. |
About
2 cm. Arms slender, equal in length, usually five. On living reefs. Sometimes
seen on our Southern shores. |
