''Squalus hawaiiensis'', the Hawaiian spurdog, is a dogfish, a member of the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Squalidae Squalidae, more commonly known as dogfish, dog sharks, or spiny dogfish, are one of several families of sharks categorized under Squaliformes, making it the second largest order of sharks, numbering 119 species across 7 families. Having earned t ...

, found in waters surrounding the Hawaiian Islands, from the surface to 950 m. Its length is up to 75 cm.

Taxonomy

''Squalus hawaiiensis'' was once lumped with the

shortspine spurdog The shortspine spurdog (''Squalus mitsukurii'') is a dogfish, a member of the family Squalidae, found on continental shelves off Japan in temperate In geography, the temperate climates of Earth occur in the middle latitudes (23.5° to ...

, but morphological and genetic data showed that the Hawaiian population was distinct from ''S. mitsukurii'' individuals from Japan to be considered a distinct species.Daly-Engel TS, Koch A, Anderson JM, Cotton CF, Grubbs RD (2018) Description of a new deep-water dogfish shark from Hawaii, with comments on the Squalus mitsukurii species complex in the West Pacific. ZooKeys 798: 135-157. https://doi.org/10.3897/zookeys.798.28375

References

{{Taxonbar, from=Q60144587 Squalus Fish described in 2018