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Chlorodiella nigra

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Type	Description	Download
Image:	Adult male	15KB

General Information

GLOBAL DISTRIBUTION: NATIVE w.Pacific - n.Cooks - Tuamotu - Hawai‘i

COOK ISLANDS STATUS: Native; Marine, near-shore

KEY FEATURES: Carapace 5x8mm, but known to 20mm wide. A small crab. Carapace generally smooth. Anterolateral border has 4 small equal teeth, the last two with acute tips. Chelipeds generally smooth; fingers black. Walking legs hairy with a few long bristles. [mainly after Edmondson 1962]

SIMILAR SPECIES: Very similar to Chlorodiella cytherea, often thought to be one species. Separated by experts by shape of anterolateral teeth against age, and shape of first pleopod of the male.

Cook Islands Distribution

View Distribution Map

Southern Group: Present Makatea:
RR	MG	AT	MK	MT	AK	PL	TK	MN

Northern Group:
TN	MH	RK	PK	NS	SW
	P

Key to Symbols

blank	no data
-	absent	L	localised
X	extinct 'naturally'	W	widespread
XQi	quarantine intercepted	R	recent
XQe	eradicated	?	query preceding category
P	present	T?	taxonomic query
S	seasonal	nn	present, said to have no name
O	occasional	?1	present, name not investigated
++++	very common	?2	presence not verified, no name recorded
+++	common	N/A	absent, name not expected
++	uncommon
+	rare
Cook Islands islands: RR =Rarotonga, MG = Mangaia, AT =‘Ātiu, MK=Ma‘uke, MT=Miti‘āro, AK=Aitutaki, PL=Palmerston, PN=Penrhyn, MN=Manuae, TK=Takūtea, TN=Tongareva (TS=Tongaleva Spoken, TW=Tongareva Written, they say "el" but write "r"), MH=Manihiki, RK=Rakahanga, PK=Pukapuka, NS=Nassau, SW=Suwarrow. After a Polynesian name: ^=orthography query. Countries and other: FIJ=Fiji, WT=Wallis & Futuna, SAM=Samoa, TON=Tonga, NIU=Niue, CK=Cook Islands, CKM=Cook Islands Māori, FP=French Polynesia, AUS=Australs, SOC=Societies, TAH=Tahiti, TUA=Tuamotus, MQS=Marquesas, MNG=Mangareva, PIT=Pitcain group, EAS=Easter Island, HAW=Hawai‘i, NZ=New Zealand, NZM=New Zealand Māori

Scientific Taxonomy

Chlorodiella nigra (Forskal, 1775)
SYNONYMS: Chlorodius niger

TAXONOMY: ANIMALIA; ARTHROPODA; CRUSTACEA; MALACOSTRACA; EUMALACOSTRACA; Eucarida; Decapoda; Reptantia; Brachyura; Brachygnatha; Brachyrhyncha; XANTHIDAE

Vouchers & References

Vouchers:
Manihiki: Bullivant74;

References:
Special Reference: Forest & Guinot 1961 [Fr.]; Edmondson 1962

Data Update History (information):
zTXmx, zB02, zM02, zD02

Web Resources

Citation Information

McCormack, Gerald (2007) Cook Islands Biodiversity Database, Version 2007.2. Cook Islands Natural Heritage Trust, Rarotonga. Online at http://cookislands.bishopmuseum.org.
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