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Polyclad

The following table lists the species in this taxon assessed under the Singapore Red List, which is intended to be published in the third edition of the Singapore Red Data Book in future.

You may find information regarding the International Union for Conservation of Nature (IUCN), RDB2 and RDB3 conservation statuses. The IUCN conservation status is assessed globally while the RDB2 and RDB3 conservation statuses are assessed locally.

The information below is accurate as at the time of the listing on-line for the taxon.

Checklist of Polyclad species from Singapore

No. Phylum Class Order Suborder Family Genus Species Common name Global IUCN Status RDB2 Status RDB3 Status
1 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudoceros bifurcus Racing-stripe Flatworm Not Listed Not Listed DD
2 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudoceros caeruleocinctus Not Listed Not Listed DD
3 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudoceros concinnus Blue-lined Flatworm Not Listed Not Listed VU
4 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudoceros cf. cruentus Not Listed Not Listed DD
5 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudoceros duplicinctus Not Listed Not Listed DD
6 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudoceros indicus Blue-dotted Margined Flatworm Not Listed Not Listed VU
7 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudoceros laingensis Purple-spotted Flatworm Not Listed Not Listed VU
8 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudoceros microcelis Not Listed Not Listed DD
9 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudoceros meenae Not Listed Not Listed DD
10 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudoceros paralaticlavus Not Listed Not Listed DD
11 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudoceros cf. prudhoei Not Listed Not Listed DD
12 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudoceros cf. rubronanus Not Listed Not Listed DD
13 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudoceros rubrotentaculatus Not Listed Not Listed DD
14 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudoceros scintillatus Not Listed Not Listed DD
15 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudoceros cf. stimpsoni Not Listed Not Listed DD
16 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudoceros cf. gamblei Not Listed Not Listed DD
17 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudoceros susanae Not Listed Not Listed DD
18 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudobiceros bajae Not Listed Not Listed DD
19 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudobiceros bedfordi Persian Carpet Flatworm Not Listed Not Listed DD
20 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudobiceros damawan Not Listed Not Listed DD
21 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudobiceros flowersi Olive Flatworm Not Listed Not Listed DD
22 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudobiceros fulgor Fine-lined Flatworm Not Listed Not Listed DD
23 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudobiceros hancockanus Not Listed Not Listed VU
24 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudobiceros hymanae Not Listed Not Listed DD
25 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudobiceros stellae Not Listed Not Listed VU
26 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Pseudobiceros cf. kryptos Not Listed Not Listed DD
27 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Acanthozoon sp. 1 Golden-speckled Flatworm Not Listed Not Listed VU
28 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Thysanozoon lagidium Not Listed Not Listed DD
29 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Thysanozoon nigropapillosum Golden-spotted Flatworm Not Listed Not Listed DD
30 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Thysanozoon nigrum Not Listed Not Listed DD
31 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Tytthosoceros lizardensis Olive Flatworm Not Listed Not Listed VU
32 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Nymphozoon bayeri Bayeri’s Flatworm Not Listed Not Listed DD
33 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Nymphozoon orsaki Not Listed Not Listed DD
34 Platyhelminthes Rhabditophora Polycladida Cotylea Pseudocerotidae Phrikoceros baibaiye Ruby Flatworm Not Listed Not Listed DD
35 Platyhelminthes Rhabditophora Polycladida Cotylea Euryleptidae Cycloporus venetus Not Listed Not Listed DD
36 Platyhelminthes Rhabditophora Polycladida Cotylea Euryleptidae Eurylepta aurantiaca Not Listed Not Listed DD
37 Platyhelminthes Rhabditophora Polycladida Cotylea Euryleptidae Maritigrella fuscapunctata Not Listed Not Listed DD
38 Platyhelminthes Rhabditophora Polycladida Cotylea Euryleptidae Maritigrella virgulata Not Listed Not Listed DD
39 Platyhelminthes Rhabditophora Polycladida Cotylea Pericelididae Pericelis beyerleyana Not Listed Not Listed DD
40 Platyhelminthes Rhabditophora Polycladida Acotylea Callioplanidae Meixneria cf. furva Not Listed DD DD
41 Platyhelminthes Rhabditophora Polycladida Acotylea Limnostylochidae Limnostylochus sp. Mangrove Flatworm Not Listed DD DD
42 Platyhelminthes Rhabditophora Polycladida Acotylea Gnesiocerotidae Gnesioceros cf. sargassicola Sargassum Flatworm Not Listed Not Listed DD

 

The list of the Categories used in 3rd edition of the Red List is:


Category

Abbreviation

Criteria

Not Threatened

Least Concern

LC

Not approaching the above criteria

Near-Threatened

NT

Approaching but not yet reaching the threshold for the above criteria

Threatened

Vulnerable

VU

There are fewer than 1,000 mature individuals but more than 250 and there may or may not be any other evidence of decline, small range size of fragmentation.

Endangered

EN

There are fewer than 250 mature individuals and no other evidence of decline or fragmentation.

Critically Endangered

CR

There are fewer than 50 mature individuals, OR if more than 50 mature individuals but less than 250, with some evidence of decline or fragmentation.

Extirpation

&

Extinction

Presumed Nationally Extinct

NEx

The species is extinct (extirpated) within Singapore but it still survives outside Singapore.

Globally Extinct

EX

The species is extinct all over the world, both in the wild and in cultivation







Other Categories

Data Deficient

DD

Inadequate information to make an informed assessment

Not Applicable

NA

Species that are not eligible for assessment at the national level (mainly introduced taxa and vagrants)

Not Evaluated


NE

Species that are possibly eligible for assessment but have not yet been evaluated against the criteria

Not Listed

NL

Species not listed in the records (in the IUCN Global Red List database, or the first edition Singapore Red Data Book - RDB 1 and second edition Singapore Red Data Book - RDB 2) for whatever reason



 

 

 

Last updated on 24 September 2021

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