Species
- Genus Eusphyra
- Eusphyra blochii (Winghead shark)
- Genus Sphyrna
- Sphyrna corona (Scalloped bonnethead)
- Sphyrna lewini (Scalloped hammerhead)
- Sphyrna media (Scoophead)
- Sphyrna mokarran (Great hammerhead)
- Sphyrna tiburo (Bonnethead)
- Sphyrna tudes (Smalleye hammerhead)
- Sphyrna zygaena (Smooth hammerhead)
Announcements in June, 2006 reported the discovery of a possible new species of hammerhead off the shores of South Carolina. The possible new species is referred to simply as a cryptic species until it receives an official designation. This is prolonged, in part, because the discovery is really that the "scalloped hammerhead" is possibly two different species, not that a new species has been sighted, in the normal way. The discovery that scalloped hammerheads are possibly two species is a result of genetic testing and counts of vertebrae.
Read more about this topic: Hammerhead Shark
Famous quotes containing the word species:
“Not only does every animal live at the expense of some other animal or plant, but the very plants are at war.... The individuals of a species are like the crew of a foundered ship, and none but good swimmers have a chance of reaching the land.”
—Thomas Henry Huxley (1825–95)
“Single-mindedness is all very well in cows or baboons; in an animal claiming to belong to the same species as Shakespeare it is simply disgraceful.”
—Aldous Huxley (1894–1963)
“The principle of avoiding the unnecessary expenditure of energy has enabled the species to survive in a world full of stimuli; but it prevents the survival of the aristocracy.”
—Rebecca West (1892–1983)