Inventory of the specimens of the Class Crinoidea (Echinodermata) deposited at the Invertebrates collection at the Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”

Q3 Agricultural and Biological Sciences

Revista del Museo Argentino de Ciencias Naturales, Nueva Serie Pub Date : 2021-01-01 DOI:10.22179/revmacn.23.678

R. M. Pertossi, M. Martinez

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Abstract

: The invertebrate collection of the Museo Argentino de Ciencias Naturales “Bernardino Rivadavia” (MACN-In) is one of the most important in Latin America. It has more than 1411 type batches with ~90 type specimens of echinoderms. For the present study we analyzed 56 lots of crinoids from the MACN-In. We also checked and updated the identification, when necessary. Seven species belonging to 6 genera were identified; 23 specimens remain unidentified. The diversity of crinoids for Chile, Uruguay and Brazil and Antarctica is dis- cussed. The MACN-In has several lots of crinoids from different parts of the world and numerous specimens of the 2 representative species from Argentina, Isometra vivipara Mortensen, 1917 and Phrixometra nutrix (Mortensen, 1918). This is the first published inventory of crinoids from samples deposited at the MACN-In collection, which will be a useful tool for future studies regarding echinoderms, particularly crinoids.

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存放在阿根廷自然科学博物馆“Bernardino Rivadavia”无脊椎动物收藏的棘皮纲(棘皮纲)标本清单

阿根廷自然科学博物馆的无脊椎动物收藏“Bernardino Rivadavia”(MACN-In)是拉丁美洲最重要的收藏之一。现有棘皮动物类型批1411多个，棘皮动物类型标本约90个。在本研究中，我们分析了56个来自MACN-In的海百合。必要时，我们还检查并更新了标识。已鉴定6属7种;23个标本仍然身份不明。讨论了智利、乌拉圭、巴西和南极洲海百合的多样性。MACN-In拥有来自世界不同地区的许多海茉莉，以及来自阿根廷的两个代表性物种的大量标本，Isometra vivipara Mortensen(1917)和Phrixometra nutrix (Mortensen, 1918)。这是首次从MACN-In收集的样品中发表的海百合清单，这将为未来研究棘皮动物，特别是海百合提供有用的工具。

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