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Abstract <p>The type of development is known to correlate with the egg size in marine invertebrates. Data on the maximum oocyte size were considered for deep-sea acorn worms of the family Torquaratoridae. The family was assumed to include species with direct development, species with lecithotrophic larvae, and species with planktotrophic larvae. Mysterious giant larvae of <i>Planctosphaera pelagica</i> may be planktotrophic larvae of Torquaratoridae.</p>

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Oocyte Size Suggests the Presence of Larvae in Deep-Sea Acorn Worms Torquaratoridae (Hemichordata, Enteropneusta)

  • 期刊论文

  • 发表日期：

    2025年1月31日

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  • O. V. Ezhova,
  • A. I. Lukinykh,
  • V. V. Malakhov

摘要

Abstract

The type of development is known to correlate with the egg size in marine invertebrates. Data on the maximum oocyte size were considered for deep-sea acorn worms of the family Torquaratoridae. The family was assumed to include species with direct development, species with lecithotrophic larvae, and species with planktotrophic larvae. Mysterious giant larvae of Planctosphaera pelagica may be planktotrophic larvae of Torquaratoridae.