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Journal of Cell Science, Vol 13, 321-335, Copyright © 1973 by Company of Biologists

Submitted on November 2, 1972
Revised on March 16, 1973

The Spermatozoon of Arthropoda. XXII. the ‘12+0’, ‘14+0’ Or Aflagellate Sperm of Protura

B. BACCETTI 1, R. DALLAI 1, and B. FRATELLO 1

1 Institute of Zoology, University of Siena, Italy

The spermatozoa of three genera of Protura are unconventional. Two of them, Acerentulus and Acerentomon, display hitherto undescribed axoneme patterns : ‘12+0’ in the former, ‘14+0’ in the latter. All the doublets are devoid of arms. The third genus, Eosentomon has a disk-shaped spermatozoon, devoid of tail. The presence of such unusual patterns is related to the non-motility of the spermatozoa.

Submitted on November 2, 1972
Revised on March 16, 1973






© The Company of Biologists Ltd 1973