Fatspine spurdog

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Fatspine spurdog
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Order: Squaliformes
Family: Squalidae
Genus: Squalus
Species: S. sp. D
Binomial name
Squalus sp. D

The fatspine spurdog, Squalus sp. D, is a dogfish which is yet to be formally described. It is a member of the family Squalidae, found on the continental shelf off the northern coast of Western Australia, at depths of between 180 and 200 m. The length of the longest male specimen measured is 56 cm.

The fatspine spurdog is a rare, small and slender dogfish with a broad head and short snout. There is a broad, small medial barbel on the anterior nasal flaps. The pectoral fin has a shallowly concave posterior margin. The first dorsal fin is moderately high, and both dorsal fin spines are very stout.

Coloration is light grey above, paler below, with no white spots. The pale dorsal fins have dusky tips.

Its reproduction is ovoviviparous.

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