spider conch

corals

coral

octopus

crab

nudibranch

sea stars

coral
Semakau Survey 2005
26 June 2005
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Preliminary results
summary | plants | birds | fishes| other intertidal animals
Other intertidal animals

Latest checklist of marine life on Pulau Semakau
on the wild fact sheets

CNIDARIA (Corals, sea anemones)
Long-tentacled carpet anemone (Stichodactyla sp.)
Colonial anemones (Order Zoanthidae)
Condylactis sp.
Phymanthus sp.

Scleractinia (hard corals)
Acropora sp. (Many Acropora species are endangered and vulnerable)
Family Favidae
Goniopora sp.
Pocillopora sp.
Porites sp.
Mushroom corals (Heliofungia actiniformis)

Alcyonacea (soft corals)
Sacrophyton sp.
Sinularia sp.

Blue coral (Heliopora coerulea)
Status as indicated in Ng, P. K. L. & Y. C. Wee, 1994. The Singapore Red Data Book: Threatened Plants and Animals of Singapore.

Endangered: in danger of immediate extinction and survival unlikely if factors causing the decline of the species is not reduced or eliminated.

Vulnerable/Rare: likely to move into the 'endangered' category in the near future if threats to its survival are not reduced or eliminated.

Indeterminate: known to be 'endangered' or 'vulnerable' but there is not enough information to determine precise category.

ECHINODERMATA (Sea stars, sea urchins, sand dollars)

Common sea star (Archaster typicus) Vulnerable
Knobby sea star (Protoreaster nodosus) Endangered
Crown sea star Asterina coronata
Long-spined sea urchin Diadema setosum
Blotchy sea cucumber Actinopyga lecanorai

Corallimorps (Order Corallimorphia)

MOLLUSCA (Snails, slugs, squids, octopus)

Giant clam (Family Tridacnidae) Vulnerable
Noble volute (Cymbiola nobilis) Vulnerable
Spider conch (Lambis lambis) Vulnerable
Gong gong (Strombus canarium) Vulnerable
Telescopiu shell (Telescopium telescopium)
Belitong (Terebralia sulcata) Vulnerable
Fan shell (Family Pinnidae) Vulnerable

Nudibranchs
Phyllid nudibranch (Phyllida sp.)
Polka-dotted nudibranch (Jorunna funebris)
Bohol nudibranch (Discodoris boholiensis)
Blue-spotted nudibranch (Dendrodoris denisoni)

Onch sea slugs (Onchidium sp.)

Squids and cuttlefish
Octopuses
from the Nudibranchs of Singapore website by Uma Sachidhanandam, National University of Singapore: these nudibranchs were found on Semakau

Gymnodoris alba
Glossodoris atromarginata
Hypselodoris bullockii
Phyllidiella pustulosa
Phyllidia elegans

CRUSTACEA (Crabs, shrimps)
*Fiddler crabs Uca vocans
*Hairy crabs Pilumnus vespertilio Vulnerable
*Soldier crabs Dotilla myctiroides Vulnerable
Land hermit crab Coenobita cavipes Endangered
Striped hermit crab Clibanarius infraspinatus
*Glabropilumnus edamensis
*Ozius guttatus
*Eriphia frontalis
*Metopograpsus frontalis

*Stone crab (Myomenippe hardwickii)
*Euxanthus exsculptus
*Brown egg crab (Atergatis floridus)
*Red egg crab (Atergatis integerrimus)
*Actaeodes mutatus
*Actaeodes tomentosus

Anemone shrimp (Periclimenes brevicarpalis)
*Pilodius granulosa
*Trapezia cymodoce

*Ghost crab (Ocypode ceratophthalma)
*Galathea coralliophilus
*Thalamita crenata
*Thalamita spinimana
*Thalamita danae
*Eriphia smithii

*observations provided by Dr Peter Ng Kee Lin

OTHER ARTHROPODS
Coastal horseshoe crab (Tachypleus gigas) Vulnerable
Marine spider (Desis martensi)


PORIFERA (Sponges)
Various sponges: orange, brown, blue; branching, encrusting and rounded (species are hard to determine without detailed microscopic examination of the animal)

ANNELIDA (Worms)
Fanworms (Family Sabellidae)
Bristleworms: various species
Tube worms: Diopatra sp. and other species

PLATYHELMINTHES (Marine flatworms)
Brown flatworm Pseudobiceros sp.
From A Guide To Singapore Polychaetes By Lim Yun Ping National University of Singapore, the following Polychaete families were found on Semakau:

Arenicolidae, Amphinomidae, Aphroditidae, Arabellidae, Capitellidae, Cirratulidae, Ctenodrilidae, Eunicidae, Euphrosinidae, Fauveliopsidae, Flabelligeridae, Glyceridae, Goniadidae, Hesionidae, Lacydoniidae, Lumbrineridae, Lysaretidae, Maldanidae, Nephtyidae, Nereidae, Onuphidae, Opheliidae, Orbiniidae, Oweniidae, Palmyridae, Paraonidae, Pectinariidae, Pholoididae, Phyllodocidae, Pilargiidae, Pisionidae, Poecilochaetidae, Polynoidea, Polyodontidae, Questidae, Sabellidae Serpulidae, Sigalionidae, Spionidae, Sternaspidae, Syllidae, Terebellidae, Trichobranchaetidae

With observations from:
Subaraj Rajathurai
Dr Peter Ng Kee Lin (Raffles Museum of Biodiversity Research, NUS)
Ria Tan
Dr Chua Ee Kiam
Dr Soo Wai Man
Siti Yaacub
Robert Heigermoser
Jeremy Ang
Alvin Lee
Toh Chay Hoon

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