A NEW FAMILY OF ARTHROTARDIGRADA (TARDIGRADA, HETEROTARDIGRADA) FROM THE ATLANTIC COAST OF FLORIDA, USA
A NEW FAMILY OF ARTHROTARDIGRADA (TARDIGRADA, HETEROTARDIGRADA) FROM THE ATLANTIC COAST OF FLORIDA, USA
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DOI：
10.2307/3226191
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发表时间：
1984-01-01
期刊：
影响因子：
--
通讯作者：
HIGGINS, RP
中科院分区：
文献类型：
--
作者：
KRISTENSEN, RM;HIGGINS, RP
一种新的间质节肢动物--沙棘隐翅虫ReNAUDARCTUS Psammocryptus Gen.ET sp.11月被描述为来自佛罗里达州皮尔斯堡和博卡拉顿的高能海洋海滩。在由粗石英砂和贝壳碎屑组成的分层沉积物中发现了它。迟滞的特点是其背侧角质板、脚趾和爪状结构。雷纳达科是节肢动物目中的一个新科。一种最近被描述的迟滞动物，Neostigarctus acanthophorus，来自意大利的一个海洋洞穴，最初被归入Stygarctidae家族，根据脚趾和爪子的结构被归入Renaudarctidae。文中还讨论了该科与异翅目其他科的系统发育关系。在新种中发现的其他7种迟滞动物包括：Parastygarctus sterreri、Stygarctus gourbaultae、Halechiniscus remanei、Raiarctus colurus、Raiarctus sp.、Tanarctus tauricus和Batillipes Bullacaudatus。在此之前，美国仅报道过白纹伊蚊和白纹伊蚊。海滩迟滞的垂直和水平分布似乎更多地与粒度有关，而不是与包括海滩深度在内的其他物理或化学因素有关。
A new interstitial arthrotardigrade, RENAUDARCTUS psammocryptus gen. et sp. nov. is described from high-energy marine beaches of Fort Pierce and Boca Raton, Florida. It is found in sediment consisting of stratified layers of coarse quartz sand and shell hash. The tardigrade is distinguished particularly by its dorsal cuticular plates, toes, and claw structure. The RENAUDARCTIDAE is established as a new family in the order Arthrotardigrada. A recently described tardigrade, Neostygarctus acanthophorus from a marine cave in Italy, originally placed in the family Stygarctidae, is included in the Renaudarctidae based on toe and claw structure. The phylogenetic relationships of Renaudarctidae to other families in Heterotardigrada are discussed. Seven other species of tardigrades found with the new species included: Parastygarctus sterreri, Stygarctus gourbaultae, Halechiniscus remanei, Raiarctus colurus, Raiarctus sp., Tanarctus tauricus and Batillipes bullacaudatus. Only B. bullacaudatus and H. remanei have been reported from the USA previously. The vertical and horizontal distribution of the tardigrades in the beaches appears to be related to granulometry more than to other physical or chemical factors, including depth in the beach.