Variation in hypodermic radular teeth of the snail auger Hastula cinerea (Born, 1778) (Gastropoda:Terebridae)

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-06-01 DOI:10.1016/j.zool.2023.126083

Índira Oliveira da Luz , Alisson Sousa Matos , Cristina de Almeida Rocha-Barreira , Helena Matthews-Cascon

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Abstract

Gastropods of the superfamily Conoidea are present in high diversity in the oceans and are characterized by having modified foregut anatomy and radular morphology. This study provides details on variations in the radula teeth of the species Hastula cinerea, which have hypodermic radula teeth of the toxoglossan type and are part of the Terebridae family – inserted in the Conoidea superfamily. Hastula cinerea specimens were collected at Flecheiras beach, Trairi, Ceará, Brazil. Scanning Electron Microscopy (SEM) was performed to analyse the radula specificities. Thirty specimens were used between females and males, with different sizes. The total length of the shell and the length of the teeth of all analysed specimens were measured. With the SEM result, more than one radula tooth morphotype was found for the species H. cinerea. The pattern of the teeth found is similar to the hypodermic teeth of the group, however, with structural and length differences between smaller and larger individuals. It was possible to observe three radula variations (morphotype-1, morphotype-2 and morphotype-3), 26 related to different sizes of individuals, regardless of sex, configuring a variation in the radula teeth. Therefore, this result brings a contribution that stimulates future research with the functional morphology of H. cinerea and others auger snails.

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生，1778年)螺钻皮下齿状齿的变异(腹足目:螺钻科)

锥总科的腹足类在海洋中存在高度多样性，其特征是具有改良的前肠解剖结构和radular形态。这项研究提供了灰灰灰蝶（Hastula cinerea。在巴西CearáTrairi的Flecheiras海滩采集了灰蝶标本。扫描电子显微镜（SEM）分析了拉杜拉的特异性。在雌性和雄性之间使用了30个不同大小的标本。测量了所有分析样本的外壳总长度和牙齿长度。扫描电镜结果表明，灰葡萄属有一种以上的齿形形态。然而，发现的牙齿模式与该组的皮下牙齿相似，较小个体和较大个体之间存在结构和长度差异。可以观察到三种不同的齿突变异（形态1、形态2和形态3），26与不同大小的个体有关，无论性别如何，构成了齿突牙齿的变异。因此，这一结果为灰葡萄和其他螺旋蜗牛的功能形态学研究提供了参考。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.