Cymbacephalus Beauforti
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De Beaufort's flathead (''Cymbacephalus beauforti''), also known as the crocodilefish or giant flathead, is a species of marine ray-finned fish belonging to the family
Platycephalidae The Platycephalidae are a family of marine fish, most commonly referred to as flatheads. They are relatives of the popular lionfish, belonging to the order Scorpaeniformes. Taxonomy Platycephalidae was first proposed as a family in 1839 by the E ...
, the flatheads. It is found in the Western Pacific Ocean.


Taxonomy

De Beaufort's flathead was first formally described in 1973 as ''Platycephalus beauforti'' with its type locality given as off Urukthapel Island in the Palau Islands. The
Specific name Specific name may refer to: * in Database management systems, a system-assigned name that is unique within a particular database In taxonomy, either of these two meanings, each with its own set of rules: * Specific name (botany), the two-part (bino ...
honours the Dutch
ichthyologist Ichthyology is the branch of zoology devoted to the study of fish, including bony fish ( Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha). According to FishBase, 33,400 species of fish had been described as of Octobe ...
Lieven Ferdinand de Beaufort of the University of Amsterdam, who made many notable contributions to ichthyology and who at the age of 88 wrote to Knapp encouraging him to revise the family Platycephalidae.


Description

De Beaufort's flathead is a medium-sized fish which grows up to 50 cm (19.7 in), but the average size mostly observed is 35 cm (13.8 in). The body is elongated and the head is particular because of its flat appearance like a duck bill. They have lappets at the rear of their globulous eyes, which help to break up the outline of the black iris and improve their camouflage. Juveniles begin black with few white spots and a white line behind the head. The adults have a body coloration which can vary in intensity according to the surrounding. The body is covered with a pattern like a mosaic of beige to brown spots or even greenish to grey separated by an interlacing of blue lines which ideally camouflaged them with their habitat.


Distribution and habitat

De Beaufort's flathead has a wide distribution extending from the Mentawai Islands in the far east of the Indian Ocean off
Sumatra Sumatra is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the sixth-largest island in the world at 473,481 km2 (182,812 mi.2), not including adjacent i ...
and including the Philippines, Borneo, Maluku Islands, Papua New Guinea,
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, Palau and from Yap Island to Ishigaki Island. De Beaufort's flathead is found shallow water in areas of sand or coral rubble, near seagrasses or mangroves. They are typically found at depths of , but have been recorded as deep as . File:Cymbacephalus beauforti 1.jpg File:Cymbacephalus beauforti 2.jpg File:Cymbacephalus beauforti.jpg File:28-EastTimor-Dive Sandy-Bottom 13 (Crocodile Fish)-APiazza.JPG File:46-EastTimor-Dive2 SecretGarden 06 (Crocodile Fish)-APiazza.JPG


Biology

De Beaufort's flatheads are
demersal The demersal zone is the part of the sea or ocean (or deep lake) consisting of the part of the water column near to (and significantly affected by) the seabed and the benthos. The demersal zone is just above the benthic zone and forms a layer of ...
ambush predators which feed mainly on smaller fish and crustaceans. The breeding biology of this species is little known but it is thought that the minimum population doubles at intervals between 4.5 and 14 years.


Eye lappet


References


External links


MarineBio.org entry for Cymbacephalus beauforti (crocodilefish)





Marinespecies.org
* {{Taxonbar, from=Q901557 Platycephalidae Fish described in 1973