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Updated: 06/12/2008  

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Tetraodontiformes  -  Tetraodontidae  -  Canthigaster  -  Canthigaster amboinensis

Canthigaster amboinensis

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head: dense blue lines
body: dense blue spots



Canthigaster amboinensis (Bleeker, 1865)

Ambon sharpnose-puffer,     Spider-eye sharpnose-puffer

Robust, slightly compressed body;
 head large, blunt; snout long and pointed; 1 pair of small hole-like nostrils; nape with crest between eyes and dorsal fin; eyes high on sides of head; jaws are a beak composed of 4 fused heavy powerful teeth with a central suture on each jaw; a slit-like gill opening in front of the pectoral fin base; a single short- based dorsal fin at rear of body; a similar-shaped anal fin below the dorsal; dorsal 11-12 rays; anal 10-11 rays; pectoral 16-17 rays; no pelvic fins; no spines in the fins; tail fin rounded, with 10 main rays; tough scaleless skin, head and body with scattered tiny spinules, no fleshy skin flaps.

Brown above, shading to white below; body and base of tail with small blue spots, with admixed brown spots on lower sides; head with fine, close blue lines across snout and radiating from eye, mixed with dense blue spots and lines on cheek and opercle.

        Size: 15 cm.

Habitat: reefs.


        Depth: 2-15 m.

        Indo-Pacific; vagrant at the Galapagos.

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