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Fine Structure of Spermatozoa inPerkinsiana rubraandPseudopotamilla reniformis(Sabellidae: Polychaeta)

Authors :
Iffat Chughtai
Source :
Acta Zoologica. 67:165-171
Publication Year :
1986
Publisher :
Wiley, 1986.

Abstract

The Perkinsiana acrosome is elongated, pointed and tapering, strengthened anteriorly by cortical rings of longitudinally running units. The Pseudopotamilla acrosome is cap-like and its apical region contains a laminar body with two electron densities, the laminae crossed by occasional lines of dislocation, as in a crystal. These apparently solid regions are closely followed by peripherally situated lucent zones. The zone in Pseudopotamilla contains tubules, which are very like those in Sabella sperm, except that they lack connections with the acrosome base. Both species are probably broadcast spawners and have nuclei, mitochondria, centrioles and flagella of the primitive type. This may, however, be a secondary reversion through neoteny.

Details

ISSN :
14636395 and 00017272
Volume :
67
Database :
OpenAIRE
Journal :
Acta Zoologica
Accession number :
edsair.doi...........15ebe6b316086bb52f818c94d3572d6a
Full Text :
https://doi.org/10.1111/j.1463-6395.1986.tb00860.x