Spiny Dogfish Shark Digital Poster

Abbie Millican


  • Claspers - protection that assists in sperm transfer during mating and is only in males
  • Lateral Line - a lining beginning at the pectoral fins and ending at the pelvic fins. It also detects water movement.
  • Stomach - J-shaped organ that functions in digestion.
  • Rectum - functions in the storage of solid waste
  • Pancreas - Has two parts, the ventral and the dorsal.
  • Heart - Has two halves, the atrium and the ventricles
  • Esophagus - connects the mouth to the stomach
  • Liver - Largest organ within the body cavity. It has two main lobes, the left and the right lobes, which cover most of the cavity.
  • Large Intestine - Located in the posterior end of the body cavity.
  • Gall Bladder - Green in color and stores bile.
  • Small Intestine - makes up most of the intestine and is under the duodenum. Helps digest food faster and easier.
  • Gills - Moves blood inside the body
  • Kidney - The posterior portion transports urine . The kidneys are flat and ribbon-like organs lying on either side of the body cavity.


  • Estimates of the dogfish's lifespan range from 25-100 years


  • Kingdom - Animalia
  • Phylum - Chordata
  • Class - Chondrichthyes
  • Order - Squaliformes
  • Family - Squalidae
  • Genus - Squalus
  • Species - Acanthias
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Where they are found

  • They are found in worldwide temperate and subarctic waters of North Atlantic and North Pacific oceans. These sharks have even been found in the Black Sea and Mediterranean Sea.
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  1. First Dorsal Fin
  2. Second Dorsal Fin
  3. Caudal Fin
  4. Pelvic Fin
  5. Gill Slits
  6. Snout
  7. Claspers
  8. Pectoral Fin
  9. Lateral Line