19. Some of them are very big while others are quite small. This was the wrong way round; there are more than 500 species of shark, but more than 1,000 species in the elasmobranchii sub-class, which includes not only sharks … All Rights Reserved Most have a patterned skin, and some have barbels on their chins.Also known as sawsharks, these sharks have long saw-like snouts. There are more than 500 species of shark. Every species has two Latin names which allow people to be certain they are talking about the same creature no matter what language they speak.For example, the scientific classification of the shortfin mako shark goes like this:To further your learning about these truly amazing animals, we highly recommend Also known as “ground sharks,” carcharhiniformes is largest order of sharks. Chondrichthyes consists of two groups, Holocephali and Elasmobranchii, and within Elasmobranchii are eight (8) orders of sharks. These sharks have five (5) or six (6) gill slits, two (2) dorsal fins, no anal fin, wide pectoral fins and transverse teeth. Most sharks in this order live tropical coastal waters.With an estimated 126 different species, this order of sharks is found in nearly every marine habitat. Every shark belongs to the classification Chondrichthyes which identifies them as cartilaginous fish, fish whose internal skeletons are comprised of flexible cartilage rather than bone. Some of them are to be feared while others mind their own business and they are very calm. Species: oxyrinchus. Most live in cold, deep water.These sharks have five (5) gill slits, a large mouth with several rows of sharp teeth, two (2) dorsal fins, an anal fin, and are able to maintain a higher body temperature than the water in which they are swimming.Among the most diverse order of sharks, these sharks have five (5) gill slits, two (2) spineless dorsal fins, an anal fin, and spiracles near their eyes. Some deepwater Squaliformes are bioluminescent.Sharks in this order have flattened bodies, a mouth with dermal flaps in front of a short snout, nasal barbels, eyes and spiracle on the top of their head, and lack an anal fin. The caudal fin has a strong lateral keel and a crescent shape. Some are even friendly to humans. These sharks have long snouts with a short mouth, five (5) gill slits, two (2) dorsal fins and lack an anal fin. Oceanic whitetip shark accompanied by pilot fishes | Image Courtesy: peter-koelbl.deGreat hammerhead shark | Image Courtesy: Brian SkerryBlacktip reef shark in the Solomon Islands | Image Courtesy: A sand tiger shark in Newport Aquarium | Image Courtesy: Dwarf Lanternshark | Image Courtesy: Smithsonian InstituteAmerican Pocket shark | Image Courtesy: Mark Doosey/Tulane University How well do you know them? A hammerhead shark … Their characteristics include five (5) gill slits, moveable eyelids which protect their eyes from injury, two (2) spineless dorsal fins, an anal fin, and a wide mouth filled with sharp teeth located behind the eyes.This is a small order of sharks with only nine (9) known species. Photograph: Nuno Sa/NPL/Alamy What is the collective noun for sharks? Binary Nomenclature: Rhincodon typus Maximum Length: 18.8 m Maximum Weight: 11,018 kg. A shiver of sharks . A whale shark. RAFA RIVAS/AFP/Getty Images According to the Smithsonian, there are over 500 known shark species, though many are endangered or declining due to various factors like overfishing. There are over 500 species of shark. They have five (5) gill slits, a dorsal fin with a strong spine and both sharp and flat rounded teeth in their mouth.Considered the most primitive order of sharks alive today, these sharks have six (6) or seven (7) gill slits, a single dorsal fin, an anal fin and thorny teeth. Below, we have compiled an interesting list of well-known shark species that you should know. A sand tiger shark. … It is usually greyish-brown, with mottled skin. Some sharks are just a few centimeters in size. Sharks do not have bones. A conspiracy of sharks … All organisms have scientific names, a name that is unique for each species. The basking shark (Cetorhinus maximus) is the second-largest living shark, after the whale shark, and one of three plankton-eating shark species, along with the whale shark and megamouth shark.Adults typically reach 7.9 m (26 ft) in length.