A New Species of Melita (Amphipoda:Gammaridae) from the Marshall Islands, Micronesia
A New Species of Melita (Amphipoda:Gammaridae) from the Marshall Islands, Micronesia
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密克罗尼西亚马绍尔群岛的Melita新种（片脚类：Gammaridae）
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发表时间：
1971
期刊：
影响因子：
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通讯作者：
R. Croker
中科院分区：
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作者：
R. Croker
作者于1968年和1969年夏季在密克罗尼西亚马歇尔群岛的埃尼威托克、夸贾林和马朱罗三个环礁的潮间带和潮下带泻湖生境中采集和研究了端足类。特别强调从钙质砂和砾石中采集，因为迄今为止大多数工作者报告了更丰富的表生动物物种（谢伦贝格，1938年;巴纳德，1965年）。此外，还努力收集完整的生活史阶段系列，并研究更丰富物种的形态变化，行为和一般生态学。三个环礁中最丰富和普遍存在的物种之一被证明是Melita的一个新物种，也是密克罗尼西亚的一个新属记录。虽然该物种不是严格意义上的动物区系，但从海滩和珊瑚岩下和附近的粗潮间带砂和砾石中采集了大量标本，这是以前报道的M.产于加州的sulca（Barnard，1969）。据我所知，这个有趣的新物种是Melita属中已知的最小的物种，除了目前正在描述的两个咸水物种（Bousfield，个人交流）。报告的长度测量值是当样本伸展时从头部前缘到尾索尖端的距离。除非另有说明，否则将动物保存在70%酒精和甘油中。
DURING THE SUMMERS of 1968 and 1969, the author collected and studied amphipods from intertidal and subtidal lagoon habitats of three atolls (Eniwetok, Kwajalein , and Majuro) in the Marshall Islands, Micronesia. Particular emphasis was placed on collecting from calcareous sands and gravels, since most workers to date have reported on the more abundant epifaunal species (Schellenberg, 1938; Barnard , 1965). In addition, efforts were made to collect complete series of life history stages, and to study morphological variations, behavior, and general ecology of the more abundant species. One of the most abundant and ubiquitous species from the three atolls proved to be a new species of Melita, also a new generic record for Micronesia. Although the species is not strictly infaunal, numerous specimens were collected from coarse intertidal sands and gravels under and near beach and coral rocks, a similar microhabitat previously reported for M. sulca from California (Barnard, 1969). As far as I can determine, this interesting new species is the smallest known for the genus Melita with the exception of two brackish-water species currently being described (Bousfield, personal communication). The length measurement reported is the distance from the anterior margin of the head to the tip of the telson when the specimen was stretched out. Animals were preserved in 70 percent alcohol and glycerine unless otherwise stated.