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題名 | On Some Caligids (Copepoda: Caligidae) from Plankton of a Coastal Lagoon in the Gulf of Mexico with a Description of a New Species of Metacaligus= |
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作者 | Suárez-Morales, Eduardo; Kim, Il-hoi; Escamilla, Benigno J.; |
期刊 | Zoological Studies |
出版日期 | 20121100 |
卷期 | 51:6 2012.11[民101.11] |
頁次 | 頁804-818 |
分類號 | 387.17 |
語文 | eng |
關鍵詞 | 浮游動物; 橈腳動物; Planktonic crustaceans; Parasitic copepods; Plankton ecology; Zooplankton; Invertebrate taxonomy; |
英文摘要 | A collection of zooplankton from a coastal system of the southern Gulf of Mexico contained several caligid copepods that were taxonomically examined. The following species were identified: Caligus rufimaculatus Wilson, 1905, C. undulatus Shen and Li, 1959, Caligus sp., Metacaligus rufus (Wilson, 1908), and an undescribed species of Metacaligus Thomsen, 1949. The 1st species (C. rufimaculatus) was previously reported and redescribed from specimens collected in this system. Caligus undulatus is known only from plankton surveys; our specimens show subtle differences with respect to other known populations. Metacaligus rufus is redescribed based on adult male and female specimens collected from Chelem; this species has not been redescribed since its original description. Both C. undulatus and M. rufus represent new geographic records in the Gulf of Mexico and the Northwestern Tropical Atlantic region. Metacaligus yucatanensis sp. nov. is described based on male individuals and a single female with a unique combination of characters including: 1) leg 1 with all elements of the distal segment inserted on the inner margin, and 2) the absence of an outer spine on the 2nd exopodal segment of the 2nd leg. This is the 5th species of the genus currently known. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。