Mendoza-Becerril MarÍa A, Estrada-GonzÁlez Mariae C, Mazariegos-Villarreal Alejandra, Restrepo-AvendaÑo Luisa, Villar-BeltrÁn Rogelio D, AgÜero JosÉ, Cunha Amanda F
CONACYT-Centro de Investigaciones Biológicas del Noroeste S.C., Inst. Politécnico Nacional 195, La Paz, BCS 23096, México..
Zootaxa. 2020 Jul 1;4808(1):zootaxa.4808.1.1. doi: 10.11646/zootaxa.4808.1.1.
The Mexican Pacific has been the focus of several research expeditions, with 90 species of hydromedusae and more than 200 species of hydroids recorded for the region. However, only a few of these reports include taxonomic descriptions, hindering inferences of the phylogenetic relationships, species boundaries, and diversity of Hydrozoa in Mexican waters. In this study, we present detailed and illustrated descriptions of new records of hydromedusae and hydroids for La Paz Bay, Gulf of California. We found a total of 16 species comprising 15 genera, with three new records for the Gulf of California (polyps of Antennella secundaria, Bimeria vestita, and Ventromma halecioides), two new records for the Mexican Pacific (medusa of Clytia linearis, polyp of Halopteris violae), and we redescribe Obelia tenuis. We show that the diversity of Hydrozoa in the Mexican Pacific is likely underestimated, and we emphasize the importance of taxonomic and systematic studies of hydroids and hydromedusae in Mexico.
墨西哥太平洋海域一直是几次研究考察的重点，该区域已记录有90种水螅水母和200多种水螅虫。然而，这些报告中只有少数包含分类描述，这妨碍了对墨西哥海域水螅虫纲的系统发育关系、物种界限和多样性的推断。在本研究中，我们对加利福尼亚湾拉巴斯湾的水螅水母和水螅虫新记录进行了详细且配有插图的描述。我们共发现了16个物种，分属15个属，其中有三个是加利福尼亚湾的新记录（次生触角螅、具饰双体螅和哈氏腹口螅的水螅体），两个是墨西哥太平洋海域的新记录（线性棍螅水母和紫海翼螅的水母体），并且我们重新描述了细枝薮枝螅。我们表明，墨西哥太平洋海域水螅虫纲的多样性可能被低估了，并且我们强调了对墨西哥水螅虫和水螅水母进行分类和系统研究的重要性。
