Finetooth shark (Carcharhinus isodon)

Image source: allendobasu | inaturalist.org

General data

Main name: Finetooth shark
Climates: Tropical, Subtropical
Habitat: Saltwater
Native: North America, South America
Distribution: Atlantic Ocean

Classification

Genus: Carcharhinus - Reef shark
Family: Carcharhinidae - Requiem sharks
Order: Carcharhiniformes - Ground sharks
Class: Elasmobranchii - Sharks and Rays
Superclass: Chondrichthyes - Cartilaginous fishes

Description

The finetooth shark (Carcharhinus isodon) is a species of requiem shark, in the family Carcharhinidae, found in the western Atlantic Ocean, from North Carolina to Brazil. It forms large schools in shallow, coastal waters, and migrates seasonally following warm water. A relatively small, slender-bodied shark, the finetooth shark can be identified by its needle-like teeth, dark blue-gray dorsal coloration, and long gill slits. It attains a maximum length of 1.9 m (6.2 ft). The diet of this species consists primarily of small bony fishes, in particular menhaden. Like other members of its family, it is viviparous with females giving birth to two to six pups in estuarine nursery areas every other year.

Taxonomy of Fishes

Osteichthyes - Bony fishes->
Chondrichthyes - Cartilaginous fishes->
- Elasmobranchii - Sharks and Rays->
  - Lamniformes - Mackerel sharks->
  - Carcharhiniformes - Ground sharks->
    
    Carcharhinidae - Requiem sharks->
    
    Prionace - Blue sharks->
    
    Carcharhinus - Reef shark->
    
    Sandbar shark (Carcharhinus plumbeus)
    
    Bull Shark (Carcharhinus leucas)
    
    Blacktip reef shark (Carcharhinus melanopterus)
    
    Grey reef shark (Carcharhinus amblyrhynchos)
    
    Galapagos shark (Carcharhinus galapagensis)
    
    Silky shark (Carcharhinus falciformis)
    
    Silvertip shark (Carcharhinus albimarginatus)
    
    Blacknose shark (Carcharhinus acronotus)
    
    Bignose shark (Carcharhinus altimus)
    
    Graceful shark (Carcharhinus amblyrhynchoides)
    
    Pigeye shark (Carcharhinus amboinensis)
    
    Borneo shark (Carcharhinus borneensis)
    
    Copper shark (Carcharhinus brachyurus)
    
    Spinner shark (Carcharhinus brevipinna)
    
    Nervous shark (Carcharhinus cautus)
    
    Pacific smalltail shark (Carcharhinus cerdale)
    
    Carcharhinus coatesi (Carcharhinus coatesi)
    
    Whitecheek shark (Carcharhinus dussumieri)
    
    Creek whaler (Carcharhinus fitzroyensis)
    
    Pondicherry shark (Carcharhinus hemiodon)
    
    Human’s whaler shark (Carcharhinus humani)
    
    Finetooth shark (Carcharhinus isodon)
    
    Smooth tooth blacktip shark (Carcharhinus leiodon)
    
    Blacktip shark (Carcharhinus limbatus)
    
    Oceanic whitetip shark (Carcharhinus longimanus)
    
    Hardnose shark (Carcharhinus macloti)
    
    Carcharhinus macrops (Carcharhinus macrops)
    
    Dusky shark (Carcharhinus obscurus)
    
    Lost shark (Carcharhinus obsoletus)
    
    Caribbean reef shark (Carcharhinus perezii)
    
    Smalltail shark (Carcharhinus porosus)
    
    Blackspot shark (Carcharhinus sealei)
    
    Night shark (Carcharhinus signatus)
    
    Spot-tail shark (Carcharhinus sorrah)
    
    Australian blacktip shark (Carcharhinus tilstoni)
    
    Carcharhinus tjutjot (Carcharhinus tjutjot)
    
    Negaprion - Negaprion->
    
    Triaenodon - Triaenodon->
    
    Rhizoprionodon - Sharpnose sharks->
    
    Glyphis - Glyphis->
    
    Isogomphodon - Isogomphodon->
    
    Lamiopsis - Lamiopsis->
    
    Loxodon - Loxodon->
    
    Nasolamia - Nasolamia->
    
    Scoliodon - Scoliodon->
    
    Scyliorhinidae - Cat sharks->
    
    Pentanchidae - Deepwater catsharks->
    
    Triakidae - Houndsharks->
    
    Sphyrnidae - Hammerheads->
    
    Atelomycteridae - Coloured catsharks->
    
    Galeocerdonidae - Tiger sharks->
    
    Hemigaleidae - Weasel sharks->
    
    Leptochariidae - Barbeled houndsharks->
    
    Proscylliidae - Finback catsharks->
    
    Pseudotriakidae - False catsharks->
  - Rhinopristiformes - Shovelnose rays->
  - Torpediniformes - Electric rays->
  - Rajiformes - Skates and rays->
  - Orectolobiformes - Carpet shark->
  - Squatiniformes - Angelsharks->
  - Heterodontiformes - Bullhead and horn sharks->
  - Hexanchiformes - Six-gill sharks->
  - Myliobatiformes - Stingrays->
  - Squaliformes - Sleeper and dogfish sharks->
  - Echinorhiniformes - Bramble sharks->
  - Pristiophoriformes - Saw sharks->
- Holocephali - Chimaeras->
Agnatha - Jawless fishes->