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Light and Scanning Electron Microscopic Studies on Eustrongylides exciscus Larvae (Nematoda: Dioctophmida) from Channa punctatus Bloch from India

Light and Scanning Electron Microscopic Studies on Eustrongylides exciscus Larvae (Nematoda: Dioctophmida) from Channa punctatus Bloch from India

Neelima Gupta

 

Centre of Excellence Laboratory, Department of Animal Science, MJP Rohilkhand University, Bareilly 243 006, India

*      Corresponding author: guptagrawal@rediffmail.com

 

Fig. 1.

L4 dissected Channa punctatus showing Eustrongyloides tubifex lying in the body.

Fig. 2.

L4 Eustrongylides tubifex isolated in a petri dish from a single fish.

Fig. 3.

Light microphotographs of L4 Eustrongylides tubifex: A, anterior end showing tapering end; B, anterior end showing papillae under fine adjustment; C, en face view showing arrangement of papillae; D, posterior blunt end.

Fig. 4.

Scanning electron micrographs of L4 Eustrongylides tubifex: A, en face view showing slit-like mouth (arrow) and number of papillae; B, anterior end showing arrangement of papillae; C, inner papilla showing narrow base and spine-like apex; D, outer papilla having wide base and nipple-like apex.

Fig. 5.

Scanning electron micrographs of L4 Eustrongylides tubifex: A, surface view of outer papilla encircled in a ring; B, sensillae situated above the outer papilla; C, body showing striations; D, striations under higher magnification (note the grooves and incomplete margins).

Pakistan Journal of Zoology

December

Vol. 50, Iss. 6, Pages 1999-2398

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