How many species of the gastropod genus Leucosyrinx (Conoidea: Pseudomelatomidae) are truly living in Southwestern Atlantic deep-waters?

IF 1.2 3区生物学 Q2 ZOOLOGY Zoologischer Anzeiger Pub Date : 2024-08-24 DOI:10.1016/j.jcz.2024.08.004

Noelia C. Sánchez , Roberto E. Vogler , Ariel A. Beltramino , Guido Pastorino

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Abstract

A revision of the species cited in the genus Leucosyrinx from Argentine waters is conducted. Leucosyrinx argentina sp. nov. is described after material collected off Argentina in: the Mar del Plata Submarine Canyon (528–2212 m depth), at 39°53.381′S, 55°52.197′W off Buenos Aires province (772 m depth), and in the Burdwood Bank (approximately 54°S in 187 and 642 m depth). Radulae, penis, operculum, ornamentation and ultrastructure of the shell are described. In addition, partial sequences of the mitochondrial cytochrome c oxidase subunit 1 gene (COI) are provided. After a review of the species previously described in the genus Leucosyrinx from Argentine waters, we concluded that L. argentina sp. nov. is the only living species truly recognized as belonging in this genus from the Southwestern Atlantic. This is the first study of the genus Leucosyrinx from this region that revises both morphological and molecular characters.

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真正生活在西南大西洋深水区的腹足类 Leucosyrinx 属（腹足纲：伪鳞目）有多少种？

对阿根廷海域的 Leucosyrinx 属物种进行了修订。新种（Leucosyrinx argentina sp.nov.）是根据在以下阿根廷海域采集到的材料进行描述的：马德普拉塔海底峡谷（528-2212 米深）、布宜诺斯艾利斯省附近的南纬 39°53.381′，西经 55°52.197′（772 米深）以及 Burdwood Bank（约南纬 54°，187 和 642 米深）。描述了甲壳的放射状体、阴茎、厣、装饰和超微结构。此外，还提供了线粒体细胞色素 c 氧化酶亚单位 1 基因（COI）的部分序列。在回顾了阿根廷水域以前描述的 Leucosyrinx 属物种之后，我们认为 L. argentina sp.这是首次对该地区的 Leucosyrinx 属进行形态和分子特征的研究。

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来源期刊

Zoologischer Anzeiger 生物-动物学

CiteScore

2.80

自引率

7.10%

发文量

审稿时长

>12 weeks

期刊介绍： Zoologischer Anzeiger - A Journal of Comparative Zoology is devoted to comparative zoology with a special emphasis on morphology, systematics, biogeography, and evolutionary biology targeting all metazoans, both modern and extinct. We also consider taxonomic submissions addressing a broader systematic and/or evolutionary context. The overall aim of the journal is to contribute to our understanding of the organismic world from an evolutionary perspective. The journal Zoologischer Anzeiger invites suggestions for special issues. Interested parties may contact one of the editors.