Brief contributions to zoology from the Museum of Yale College; No. XXI, The early stages of the American lobster (Homarus americanus Edwards)

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1872
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Abstract
THE majority of the published observations on the developmeut of the higher crustacea have been confined to the changes taking place in the embryo within the egg, or immediately after leaviug it.Of the later stages, which connect the newly hatched young with the adult, little is known.So far as the published accounts are known to me, 'this is the case in the history of the common lobster of Europe.On the development of the lobster of our own coast nothing has been published.The investigation, of which this article is a short uotice, was undertaken to supply this defieiency in the history of the later development of the lobster, and is one of the results obtained through the facilities for collecting and studying our marine animals, offered last summer by the U. S. Commissioner of the Fisheries, Professor Baird.The specimens were all obtained in Vineyard Sound, or the adjacent waters, during July, and were mostly taken at the surface in the day-time, either with the towing or hand net.They present three quite different stages in the true larval condition, besides a later stage approaching closely the adult.The exact age of the larvre of the first stage was not ascert~ined, but was probably only a few days, and they had, most hkely, moulted not more than once, perhaps not at all.Between the third stage, here described, and the last, there is probably an intermediate form wanting.The descriptions and figures have
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openalex_W2319350230 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Sydney Smith
Journal american journal of science
Year 1872
DOI
10.2475/ajs.s3-3.18.401
URL
https://doi.org/10.2475/ajs.s3-3.18.401
Keywords Keywords not found

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