Rasptooth Dogfish

About the Rasptooth Dogfish

The rasptooth dogfish is a a shark species found south of Japan, at depths of about 360 m. Very little is known about their biology or their behaviour as only a few specimens have been studied. They’re presumed to be ovoviviparous, but litter sizes are unknown. They reach lengths of 43 cm.

There is some controversy regarding this shark’s family tree. They have been placed in the dogfish family, but more recent DNA tests puts them in the lanternshark family. They have also been placed in their own genus are known as miroscyllium shekoi, by Fishbase and IUCN.

Expansion of deepwater fisheries could pose a threat to the rasptooth dogfish, but at the time there are no population studies to assess their abundance. They’re considered Data Deficient by the IUCN.


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Etmopterus sheikoi (DOLGANOV, 1986) (BPS-0356) © Samuel P. Iglésias, Muséum national d’Histoire naturelle, Département Milieux et Peuplements Aquatiques

Scientific Name Etmopterus sheikoi
OrderDog and Angelfish Sharks - Squaliformes
CitesNot Listed
IUCNData Deficient
Litter Size Unknown
Common Length43 cm
Max LenghtNA
Depth Range360 m
DistributionNorthwest Pacific