Laboratório de Invertebrados Marinhos do Ceará (LIMCe), Universidade Federal do Ceará, Departamento de. Biologia, Bloco 906 Campus do Pici, Pici, CEP 60455760 Fortaleza, CE, Brazil; Programa de Pós graduação. em Ciências Marinhas Tropicais, Universidade Federal do Ceará, Instituto de Ciências do Mar (Labomar), Avenida da Abolição, 3207, Meireles, CEP 60165081 Fortaleza, CE, Brazil.
Laboratório de Invertebrados Marinhos do Ceará (LIMCe), Universidade Federal do Ceará, Departamento de. Biologia, Bloco 906 Campus do Pici, Pici, CEP 60455760 Fortaleza, CE, Brazil; Programa de Pós-graduação em Engenharia de Pesca, Universidade, Federal do Ceará, Departamento de Engenharia de Pesca, Bloco 825, Brazil.
Zoology (Jena). 2023 Jun;158:126083. doi: 10.1016/j.zool.2023.126083. Epub 2023 Mar 11.
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.
海蜗牛超科的腹足动物在海洋中具有高度多样性，其特征在于前肠解剖结构和齿舌形态发生了改变。本研究详细介绍了 Hastula cinerea 物种齿舌牙齿的变化，该物种具有毒舌型的皮下齿舌，属于 Terebridae 科 - 插入 Conoidea 超科。Hastula cinerea 标本是在巴西塞阿拉州特雷里的 Flecheiras 海滩采集的。使用扫描电子显微镜 (SEM) 分析了齿舌的特异性。在雌性和雄性之间使用了 30 个不同大小的标本。测量了所有分析标本的壳长和牙齿长度。通过 SEM 结果，发现 H. cinerea 物种有不止一种齿舌形态。发现的牙齿模式与该组的皮下牙齿相似，但个体大小之间存在结构和长度差异。可以观察到三种齿舌变化（形态-1、形态-2 和形态-3），与个体大小相关的 26 种变化，无论性别如何，都构成了齿舌的变化。因此，该结果提供了一个贡献，它激发了对 H. cinerea 和其他 auger 蜗牛的功能形态的未来研究。
