Volume 30, Issue 3
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



The nuclear numbers situated between the cephalic space and the nerve ring (CS-NR) in the microfilariae of six filarial species were examined. For the counting of nuclei, aceto-orcein squashing preparations were used. This procedure revealed nuclei clearly visible under the phase-contrast microscope. The mean number of nuclei in the CS-NR region was very similar between and , but was statistically different between and . In the microfilariae of , two types of nuclei were clearly shown in this region. The procedure described is useful in the anatomical study of microfilariae.


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  • Accepted : 12 Apr 1980

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