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Rhinecanthus rectangulus

Kōkiri Tua

Wedge Picassofish

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General Information

COMMON NAMES: Wedge Picassofish, Wedge-tail Triggerfish, Rectangle Triggerfish, Dark Picasso-Triggerfish, Patchy Triggerfish; German Keil-Picassodrücker; French Baliste Picasso à Bandeau Noir, Baliste à Triangle, Picasso Noir

TRADITIONAL NAMES: Kōkiri Tua (RR), Kōkiri (MG AT MT TW), Kōkiri Kutukutu (MK), Kokiri (AK), Kōkili (TS), Kōkili Tua / Kōkili Tauiaelo (PK); Other Polynesian - Oiri Uouo (TAH)

GLOBAL DISTRIBUTION: NATIVE e.Africa - Pitcairn, Hawai‘i; n. to s.Japan; s. to Norfolk

COOK ISLANDS STATUS: Native; S.Group and N.Group. Mod. common. (PL, MH) PLUS:; Marine, near-shore, reef-flat

KEY FEATURES: To 18cm SL.(RM91) [ 25cm - GBR]

Enlarged Image of 'Rhinecanthus rectangulus'

Cook Islands Distribution

View Distribution Map

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

Northern Group: Present
TN	MH	RK	PK	NS	SW
	P		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

Rhinecanthus rectangulus (Bloch & Schneider, 1801)
SYNONYMS: Balistapus rectangulus; Balistes rectangulus [O]

TAXONOMY: ANIMALIA; CHORDATA; GNATHOSTOMATA (Jawed Vertebrates); PISCES; OSTEICHTHYES; Tetraodontiformes; Tetraodontoidei; Balistoidea; BALISTIDAE

Vouchers & References

Vouchers:
Atiu: field-specimen, College collection, 10/2000, ID GMcC. Mauke: fieldspecimen, College, 3/2001, ID GMcC. Aitutaki: field-specimen, NBSAP School, 12/2000, ID GM. Palmerston: Listed (Preston95). Manihiki: A685-1specimen (B&M74). Pukapuka: informant reports at NBSAP meeting, 2/2004. Suwarrow: field ID N.Sims (Sims EIA99).

References:
text p.259 Myers (1991 2nd Ed.) Fishes of Micronesia
plate 137b Myers (1991 2nd Ed.) Fishes of Micronesia
p.456 Randall et al. (1990) Fishes of the Great Barrier Reef....
p.626 Burgess et al. (1988) Atlas of Marine Aquarium Fishes (TFH)
plate 133-07 Lieske & Myers (1996) Coral Reef Fishes
plate 100-06 Allen (1997) Marine Fishes of Tropical Australia....

Data Update History (information):
zTX, 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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