Pi95 Scolidon sp. (Spadenose Shark)
Pi95 Scolidon sp. (Spadenose Shark)
Phylum:
Chordata
Class:
Chondrichthyes
Order:
Carcharhiniformes
Family:
Carcharhinidae
Genus:
Scolidon sp.
Description:
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 an additional species, the Pacific spadenose shark (S. macrorhynchos). 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. Male Scoliodon species mature at a length of 33 cm while female Scoliodon species mature at 36 cm. When reproducing, the female is mostly ovoviviparous, Scolion laticuadus has a minimum of 8 to a maximum of 19 embryos when conceiving.
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