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Ultrastructure of the egg shell of the acanthocephalan Neoechinorhynchus crassus

  • V.P. Nikishin (a1)

Abstract

In the acanthocephalan Neoechinorhynchus crassus five embryonic envelopes have been identified, including four, which are similar to those in previously studied acanthocephalans and a supplementary one, located between the outer and the second envelopes, which is characteristic of only a few Eoacanthocephala. The terminology of the envelopes in relation to their origin and possible function is discussed.

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*Fax: (4132) 63 44 63 E-mail:nikishin@ibpn.ru

References

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