Arthropoda - Tanaidacean Crustaceans

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

You may find information for the conservation statuses assessed in the second edition Singapore Red Data Book (RDB2) and third edition Singapore Red Data Book (RDB3).

The information below is accurate as at the time of the listing online for the taxon.

Checklist of Arthropoda - Tanaidacean Crustacean Species with their Category of Threat Status for Singapore

Prepared by Chim Chee Kong

Family	Genus	Species	Authority	Common Name	RDB2	RDB3
Kalliapseudidae	Phoxokalliapseudes	singaporensis	Drumm & Heard, 2011		Not Listed	LC
Tanaididae	Xenosinelobus	balanocolus	Chim & Tong, 2019		Not Listed	DD

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

	Category	Abbreviation	Criteria
Not Threatened	Least Concern	LC	Not approaching the above criteria
Not Threatened	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 or 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.
Extirpation & Extinction	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