The Pacific spadenose shark (''Scoliodon macrorhynchos'') is a

species In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ...

of requiem shark, in the

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

Carcharhinidae. It was once regarded as

conspecific Biological specificity is the tendency of a characteristic such as a behavior or a biochemical variation to occur in a particular species. Biochemist Linus Pauling stated that "Biological specificity is the set of characteristics of living organ ...

to the spadenose shark (''S. laticaudus'').White, W.T., Last, P.R. & Naylor, G.J.P. (2010
''Scoliodon macrorhynchos'' (Bleerer, 1852), a second species of spadenose shark from the western Pacific (Carcharhiniformes: Carcharhinidae)
pp. 61–76. In: P.R. Last, W.T. White, J.J. Pogonoski (eds) Descriptions of New Sharks and Rays from Borneo. CSIRO Marine and Atmospheric Research Paper 032, 165 pp.

Virology

Pacific spadenose sharks are identified as hosts of the ''Flavivirus'' Wenzhou shark flavivirus. While currently unknown if Wenzhou shark flavivirus causes disease in infected shark hosts, it is thought that the virus moves horizontally from the gazami crab ''Portunus trituberculatus'' to shark hosts in a manner similar to other Flavivirus infections such as Dengue virus, which cycle horizontally between arthropod (mosquito) and vertebrate hosts.

References

Scoliodon Fish described in 1852 {{shark-stub