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Abstract <p>An illustrated description of females and males of <i>Candona fuscorara</i> Alekseeva et Krivorotkin sp. n. is given. In terms of the structure of the carapace and limbs, individuals of the new species are most similar to <i>Candona uschunica</i> Mazepova 1990, a rare and poorly studied species, its original description being brief and incomplete. Based on the type material from the ethanol collection of G.F. Mazepova (syntypes), we prepared a redescription of females and males of <i>C</i>. <i>uschunica</i>; in order to preserve the collection, the specimens were dried, and the lectotype and paralectotypes were designated. Using light and scanning electron microscopy, the morphology of the carapaces of both species was studied in detail, and an illustrated description of the limbs, including mouthparts, was provided. A detailed comparison is presented, and the ecology is briefly described. Data on the 18S rRNA gene sequence have been obtained for the new species.</p>

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Description of Candona fuscorara sp. n. with 18S rRNA Data and a Redescription of Candona uschunica Mazepova 1990 (Ostracoda, Podocopida, Candonidae) from Lake Baikal

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • T. M. Alekseeva,
  • R. S. Krivorotkin,
  • A. G. Koroleva,
  • O. A. Timoshkin

摘要

Abstract

An illustrated description of females and males of Candona fuscorara Alekseeva et Krivorotkin sp. n. is given. In terms of the structure of the carapace and limbs, individuals of the new species are most similar to Candona uschunica Mazepova 1990, a rare and poorly studied species, its original description being brief and incomplete. Based on the type material from the ethanol collection of G.F. Mazepova (syntypes), we prepared a redescription of females and males of C. uschunica; in order to preserve the collection, the specimens were dried, and the lectotype and paralectotypes were designated. Using light and scanning electron microscopy, the morphology of the carapaces of both species was studied in detail, and an illustrated description of the limbs, including mouthparts, was provided. A detailed comparison is presented, and the ecology is briefly described. Data on the 18S rRNA gene sequence have been obtained for the new species.