All of the Maoriwrasses are thought to be protogynous hermaphrodites and at least some species exhibit sexual dichromatism and/or dimorphism.
Their size of the cheeklined Maoriwrasse has strong dentition and a highly predatory nature, which makes it a greater threat to potential fish and invertebrates tankmates.
No more than one Maoriwrasse of the same species should be kept per aquarium, since fighting is likely to occur in aquarium confines.
These wrasse are ‘protogynous hermaphrodites’ which means they start their adult life as females and change to become males when they are older.
Humphead maoriwrasse are very wary of other animals in the wild, but in marine parks where fish are protected they often become tame and can be touched by divers.
Humphead maoriwrasse (Cheilinus undulatus) are also known as humphead wrasse, maoriwrasse, Napoleon wrasse, giant wrasse, humphead parrot fish and the double-headed wrasse.
State Aquatic Emblem: Selected species: Humphead Wrasse(Site not responding. Last check: 2007-11-01)
The Humphead Wrasse is generally bright electric blue to a duller blue/green, green or purplish blue.
Humphead Wrasse mainly eat during the day and can be seen feasting on shellfish, crushing the shells to get to the animal within, fish, sea stars, sea urchins and crabs.
The Humphead Wrasse is one of the few predators of toxic animals such as Sea Hares, Boxfish and Crown-Of-Thorns Starfish.
Napoleon wrasses are found on reefs across the Indian and Pacific Oceans and for my PhD I study them both on a pristine, remote atoll in the South China Sea and around the coral fringed coast of the northern Borneo.
This is because Napoleon wrasses start off life as females and undergo a sex change when they grow to a large enough size, but this takes time.
As the Napoleon wrasse become a rarity their status and exclusivity escalate so that diners are prepared to pay even more inflated prices.
The Napoleon wrasse is one of the largest reef fish in the world and is the largest member of the wrasse family.
The enormous size of the adult fish is made even more imposing by the prominent hump that develops on their forehead, from which they earn their common name.
Humphead wrasse are extremely long-lived, known to survive for at least 30 years and taking around 5 to 7 years to reach sexual maturity.
www.timsaxon.co.uk /wally.html (398 words)
Wrasse(Site not responding. Last check: 2007-11-01)
This is the largest of all the wrasse.
It is found in dense reef areas, feeding on a wide variety of mollusks, fishes, sea urchins, crustaceans, and other invertebrates.
It feeds on the parasites of other fish, who come to the wrasse to be cleaned.
www.primasoft.com /examples/d21.htm (212 words)
Wrasses - Humphead Maori wrasse(Site not responding. Last check: 2007-11-01)
Dark and light colouration on large scales form woven pattern on body.
Most wrasses show different colour forms at different stages of life.
Juveniles may be different from young adults which may then differ from older adults.
I was wondering if it would be alright to use the photo you have up on the web http://www.wetwebmedia.com/cheilinus.htm of a juvenile Humphead.
Most fish may only have some small changes from their natural ocean state (coloration and rarely a slightly smaller size) but usually it is only a matter of a few inches.
wrasse to make an extended stay.> They are all about the same size at 5 inches each and there is no problem in the tank.
Oxycheilinus bimaculatus (Valenciennes 1840), the Twinspot Wrasse (2) is right about the right size at 6 inches maximum, but this shy beauty really takes a beating in the process of collection, holding and shipping from the wild.
Oxycheilinus orientalis (Gunther 1862), the Oriental MaoriWrasse.
Oxycheilinus unifasciatus (Streets 1877), the Ring Tail or One-Banded Wrasse (2) is the widest ranging member of the genus.
The Napoleon Wrasse is found throughout the warm waters of the Red Sea, the Indian and Pacific Oceans.
Like others in the wrasse family, the Napoleon Wrasse doesn't usually move its tail when swimming but flaps its pectoral fins.
Napoleon Wrasse are particularly vulnerable to fishing, as they grow slowly, mature late, and are uncommon.
www.scubatravel.co.uk /humphead.html (302 words)
The Independent (London, England): Maori Wrasse and great white shark heading for Dodo's fate.(News)@ HighBeam Research(Site not responding. Last check: 2007-11-01)
ONE IS the ultimate ocean predator, the other is a virtually unknown, grotesquely ugly fish with lips and eyes prized as delicacies in Asia.
But the great white shark and the napoleon wrasse head a list of species most at risk from international trade.
The sharks are being hunted for mementoes such as teeth and jaw bones, and the napoleon wrasse - also known as the humphead or Maoriwrasse - is being over-fished for its lips and eyes, as well as its flesh, the Worldwide Fund for Nature (WWF) says.
By far the largest of the MaoriWrasses with examples of above 45kg (100lb) It is recognised by its bulging forehead hump, enormous scales and vivid blue colouring.
Hump Headed MaoriWrasse are found on coral reef edges and drop-offs, moving up onto the reef tops at high tide.
They hunt crabs, lobsters (crayfish) and other crustacea among the coral, regularly shouldering small boulders and lumps of coral aside in their pursuit of such prey.
Tripletail Maori Wrasse - Cheilinus trilobatus(Site not responding. Last check: 2007-11-01)
The Tripletail MaoriWrasse or simply Tripletail Wrasse range from East Africa to the Tuamoto and Austral islands, north to the Ryukyu Islands, south to New Caledonia.
The inhabit lagoons and reefs and are relatively common along shallow reefs with good cover.
Some times found in pet stores for home aquariums.