Regulation of Segment-Building during the Postembryonic Development of a Common Milliped

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Science  09 Aug 1968:
Vol. 161, Issue 3841, pp. 590-591
DOI: 10.1126/science.161.3841.590


Starvation of larvae of the milliped Narceus annularis results in the formation of a smaller than normal number of body segments in the early stadia. However, this reduced number is compensated for by subsequent formation of a larger than normal number of body segments in the later stadia, or by the addition of extra segment-building stadia. Apparently there is a mechanism whereby the milliped "keeps count" of the number of body segments produced and can regulate the production of these segments from a proliferative region so that the total number of body segments at sexual maturity is within the normal range for the species.

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