Squaliolus is a genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of deep-sea dogfish sharks
Squaliformes is an order of sharks that includes about 97 species in seven families.Members of the order have two dorsal fins, which usually possess spines, no anal fin or nictitating membrane, and five gill slits. In most other respects, however, they are quite variable in form and size...

 in the family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

Dalatiidae is a family of sharks in the order Squaliformes, commonly known as kitefin sharks . Members of this family are small, under long, and are found worldwide. They have cigar-shaped bodies with narrow heads and rounded snouts...



  • Squaliolus aliae Teng, 1959 (Smalleye pygmy shark)
  • Squaliolus laticaudus H. M. Smith
    Hugh McCormick Smith
    Hugh McCormick Smith was an American ichthyologist and administrator in the Bureau of Fisheries.-Biography:...

      & Radcliffe
    Lewis Radcliffe
    Lewis Radcliffe was a naturalist, malacologist, and ichthyologist. He was Deputy Commissioner of the United States Bureau of Fisheries until 1932 and was the assistant naturalist under Hugh McCormick Smith for the 1907-1910 Philippines Expedition. During his life, he described numerous new species...

    , 1912
    (Spined pygmy shark)
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