Breedy Odalisca, Guzman Hector M
Centro de Investigación en Estructuras Microscópicas, Centro de Investigación en Ciencias del Mar y Limnología, Escuela de Biología, Universidad de Costa Rica. P.O. Box 11501-2060, Universidad de Costa Rica, San José, Costa Rica; Smithsonian Tropical Research Institute, P.O. Box 0843-03092, Panama, Republic of Panama.
Smithsonian Tropical Research Institute, P.O. Box 0843-03092, Panama, Republic of Panama.
Zookeys. 2016 Apr 14(581):1-69. doi: 10.3897/zookeys.581.7910. eCollection 2016.
The species of the genus Muricea were mainly described from 1846 to 1870. After that very few contributions were published. Although the highest richness of Muricea species is in the eastern Pacific shallow waters, a comprehensive systematic study of the genus does not exist. Recently we started a taxonomic review of the genus in order to validate the status of four species previously included in the genus Eumuricea. Herein we present the second part of the Muricea revision dealing with the species-group characterised by shelf-like calyces instead of tubular-like calyces (the Muricea squarrosa-group). Original type material was morphologically analysed and illustrated using optical and scanning electron microscopy. Comparative character tables are provided for the genus. The taxonomic status of the species was analysed and established by designating lectotypes, alternatively by recognising a holotype by monotypy. We conclude that the genus Muricea comprises 20 valid species, including the previous four in the Muricea squarrosa-group. We propose 10 lectotypes, a new combination and three more species groups for the genus based on morphology: the Muricea fruticosa-group, Muricea plantaginea-group and Muricea austera-group.
海鸡冠属物种主要在1846年至1870年间被描述。此后发表的相关研究极少。尽管海鸡冠属物种在东太平洋浅水区最为丰富,但目前尚无对该属的全面系统研究。最近,我们开始对该属进行分类学修订,以确认先前归入真海鸡冠属的四个物种的分类地位。在此,我们展示海鸡冠属修订的第二部分,涉及以叶状萼片而非管状萼片为特征的物种组(方枝海鸡冠物种组)。利用光学显微镜和扫描电子显微镜对原始模式标本进行了形态分析和绘图。提供了该属的比较特征表。通过指定选模式标本,或者通过单型性认定正模标本,对物种的分类地位进行了分析和确定。我们得出结论,海鸡冠属包含20个有效物种,包括先前方枝海鸡冠物种组中的四个。基于形态学,我们为该属提出了10个选模式标本、一个新组合和另外三个物种组:丛生海鸡冠物种组、车前叶海鸡冠物种组和南极海鸡冠物种组。