Heteroscyllium colcloughi

WHAT TO LOOK FOR
This is a small, stout shark. It has a pair of long barbels with a posterior hooked flap. Its short mouth is located ahead of its eyes, and it has large spiracles well behind its eyes. The shark has two spineless dorsal fins, the first one larger and originating over the pelvic fin bases.

50-BLUEGREY-CARPETSHARK-HETEROSCYLLIUM_COLCLOUGHI_AND_JUVENILE.jpg

COLOR
Greyish above, white below, no light spots. The young have conspicuous black markings on their back, dorsal fins, and caudal fin which fade in adults.

SIZE
At birth, the shark is 17 to 18 cm in length. Males mature when they are about a length of 1.6 ft [50 cm], and females at about 2.1 ft [65 cm]. They can grow to be over 2.5 ft [75 cm].

HABITAT
They prefer the bottom of the ocean floor in very shallow inshore areas, less than 19.7 ft [6 m].

DISTRIBUTION
East Australia.

BIOLOGY
Reproduction – Aplacentally viviparous with 6-8 pups per litter.

BEHAVIOR
Unknown.

STATUS
Presumed to be rare.