Indian Journal of Animal Research

  • Chief EditorK.M.L. Pathak

  • Print ISSN 0367-6722

  • Online ISSN 0976-0555

  • NAAS Rating 6.50

  • SJR 0.263

  • Impact Factor 0.5 (2023)

Frequency :
Monthly (January, February, March, April, May, June, July, August, September, October, November and December)
Indexing Services :
Science Citation Index Expanded, BIOSIS Preview, ISI Citation Index, Biological Abstracts, Scopus, AGRICOLA, Google Scholar, CrossRef, CAB Abstracting Journals, Chemical Abstracts, Indian Science Abstracts, EBSCO Indexing Services, Index Copernicus
Submit

Research Article

Indian Journal of Animal Research, volume 54 issue 2 (february 2020) : 191-195

Histological Investigation of the Digestive System and SEM Study of Radula in Fusinus nicobaricus (Gastropoda: Fasciolariidae)

P. Subavathy
1PG and Research Department of Zoology, St. Mary’s College (Autonomous), Thoothukudi, Affiliated to Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli-627 012, Tamil Nadu, India.
Cite article:- Subavathy P. (2019). Histological Investigation of the Digestive System and SEM Study of Radula in Fusinus nicobaricus (Gastropoda: Fasciolariidae). Indian Journal of Animal Research. 54(2): 191-195. doi: 10.18805/ijar.B-3759.

ABSTRACT

In the present study, histological studies of the digestive system and SEM study of radula of Fusinus nicobaricus was evaluated. The digestive system contains proboscis, oesophagus, stomach, hepatopancreas, intestine, rectum and anus. The digestive tract of Fusinus nicobaricus encloses a buccal mass at the anterior region which contains a chitinous radula. The oesophagus leaved the buccal mass dorsally and passed the food into an extensible stomach. A pair of salivary gland lied with mid-oesophagus region. Digestive gland secreted digestive enzymes into the lumen of the stomach into mid region. Intestine was thin walled, usually long and possess loop through the digestive gland tissue and leaves as short rectum. Hepatopancreas was also implicated in storage and excretion of inorganic reserves, lipids and carbohydrate metabolites. Radula, a specific character and part of the appendices of digestive system of majority of molluscs. It was observed that the type of radula in F.n is rachiglossate with radular formula of 1+R+1. 

REFERENCES

  1. Abbott, R.T. (1954). The marine mollusks of GrandCayman Island, British West Indies. Monographs of the Academy of Natural Sciences of Philadelphia. 11:1-138.
  2. Bandel, K. (1984). The radulae of Carribean and other Mesogastropoda and Neogastropoda. Zoologische Verhandelingen. 214:1 – 187.
  3. Carlos, A., Meirelles, O. and Matthews – Cascon, H. (2003). Relations between shell size and radula size in marine prosobranchs (Mollusca: Gastropoda). Thalassas. 19:45 – 53.
  4. Hyman, L.H. (1967). The Invertebrates. McGraw Hill Book Company, London.
  5. Isarankura, K. and Runham, N.W. (1968). Studies on the replacement of the gastropod radula. Malacologia. 7: 71 – 91.
  6. Kool, S.P. (1993). Phylogenetic analysis of the Rapaninae (Neogastropoda: Muricidae). Malacologia. 35:155 – 129.
  7. Nybakken, J. (1990). Ontogenetic change in the concus radula, its form and distribution among the radula types and significance in systematic and ecology. Malacologia. 32:35 – 54.
  8. Purchon, R.D. (1977). The Biology of the Mollusca. 2nd Edn., Pergamon Press, Oxford, London.
  9. Rajakumar, T. (1995). Studies on Rapana rapiformis (Born) (Mollusca: Gastropoda: Muricidae: Rapanidae) from the Parangipettai coastal waters, India. Ph.D, Thesis, Annamalai University, 165 – 185 pp.
  10. Ramesh, R. and Ravichandran, S. (2008). Feeding biology with reference to algal preference and scanning electron microscopy studies on the radula of Turbo brunneus.Applied Science Research. 3:189 – 195.
  11. Reid, D.G. and Mak, Y.M. (1999). Indirect evidence for ecophenotypic plasticity in radular definition of Littorina Species (Gastropoda: Littorinidae). Journal of Molluscan Studies. 65:355 – 370.
  12. Runham, N.W. and Thornton, P. R. (1967). Mechanical wear of the gastropod radula – A scanning electron microscope study. Journal of Zoology. 153:445-452. 
  13. Sharmila, M. (2009).Studies on some aspects of comparative biology of digestion in Lambis lambis (L.1758) andChicoreus virgineus (L.1758). M. Phil Thesis, M.S. University, 86 pp.
  14. Tagore, J. (1989). Studies on the Thaisids Thais biserialis (Blainville, 1832) and Thais bufo (Lamarck, 1822) (Gastropoda: Prosobranchia: Thaisidae) from the Tranquebar rocky shore Southeast Coast of India. Ph.D Thesis, Annamalai University, India, 212 pp.
  15. Thilaga, R.D. (2005). Some ecological aspect of Babylonia spirata (L.1758) along the Tuticorin Coast.Ph.D Thesis, M.S.University, 244 pp.
  16. Venkatesan. V, Rameshkumar, PandBabu, A. (2016). Scanning electron microscope studies on the radula teeth of four species of marine gastropods from the Gulf of Mannar, India. Indian Journal of Fishieries. 63: 140-145.
Reviewed By

Download Article
In this Article
    Contact us
    Follow us

    Editorial Board

    View all (0)