Zoology Database

"Zoology Database" provide previous years' question papers for B.Sc zoology students. Last year's M.Sc zoology/ Lifesciences entrance paper is also available here.

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Scientific Name: Heteropneustes fossilis


Classification


Phylum: Chordata - Dorsal tubular nerve cord, notochord and gill slits present.


Subphylum: Vertebrata - Vertebral column present.


Superclass: Gnathostoma -Jaws and paired appendages present.


Class: Actinopterygii - Ray-finned fishes.


Superorder: Teleostei - Bony fish proper.


Order: Ostariophysi- The anterior vertebrae are modified to form a chain of bones, the Weberian ossicles, joining the swim-bladder to the ear.


Genus: Heteropneustes


Species: fossilis


Habit and habitat: Found in freshwaters of India, Pakistan, Bangladesh, Nepal, Burma, Sri Lanka, China, Thailand. H. fossilis found mainly in ponds, ditches, swamps, and marshes, but sometimes occurs in muddy rivers.


Characteristics: 

  1. The body is dark purplish-brown or leaden brown above, lighter below and has two lateral elongated yellowish band.
  2. Fish measures 15-25 cm in length and the body is divisible into head, trunk and tail. The Head is depressed and covered by thin skin.
  3. The Head contains a transverse mouth, eyes and 4 pairs of barbels. Maxillary barbels extend to the middle of the pectoral or to the pelvic fin.

Videos


Live Stinging catfish. YouTube: fishmarketbd

References


  • The Fishes of Assam by N.N Sarma
  • Practical zoology vertebrates by S.S Lal
  • The life of invertebrates by J.Z Young

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