Scoliodon

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Scoliodon
Scoliodon laticaudus ranong.jpg
Pacific spadenose shark, (Scoliodon macrorhynchos)
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Carcharhiniformes
Family: Carcharhinidae
Genus: Scoliodon
J. P. Müller & Henle, 1838
Type species
Scoliodon laticaudus
Müller & Henle, 1838
Synonyms
  • Physodon Valenciennes in Müller & Henle, 1838

Scoliodon is a genus of requiem sharks in the family Carcharhinidae. It was formerly thought to include only a single Indo-Pacific species, the spadenose shark (S. laticaudus), but recent taxonomic research has found two species, and the formerly excluded junior synonyms need to be resurrected.[1]

Habitat and distribution[edit]

Like most sharks, Scoliodon is marine, and is found in all open seas.

Body[edit]

Scoliodon has an elongated, spindle-shaped body tapered at the ends, making it a very fast swimmer. The trunk and tail are laterally compressed, while the head region is dorsoventrally compressed. The entire body is covered by an exoskeleton of placoid scales. The mouth is located on the ventral side and is bound on both sides by jaws. It has two rows of homodont or polyphyodont teeth, which are homologous to the placoid scales covering the body.

Species[edit]

References[edit]