STOLONICYCLOPS HEGGIENSIS, NEW GENUS, NEW SPECIES, FROM GEORGIA, U.S.A. (COPEPODA: CYCLOPOIDA: CYCLOPIDAE)

STOLONICYCLOPS HEGGIENSIS, NEW GENUS, NEW SPECIES, FROM GEORGIA, U.S.A. (COPEPODA: CYCLOPOIDA: CYCLOPIDAE)
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Stolonicyclops Heggiensis,新属,新种,来自美国佐治亚州(桡足类:圆足纲:圆足科)

DOI:
10.2307/1549333
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发表时间:
1998
影响因子:
1.1
通讯作者:
J. Spooner
J. Spooner
中科院分区:
生物学4区
文献类型:
--
作者:
J. Reid;J. Spooner

文献摘要

被引文献

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在美国格鲁吉亚州的花岗岩丘岩中发现了一种未知的剑水蚤属,即Stolonicyclops heggiensis。第2、3、3、3和5、4、4、4游泳腿的棘和刚毛公式;第2-4腿的基脚的内侧(内)角上缺少刚毛;第4腿内肢节2具有5个附属物;以及游泳腿中缺少两性二型,除了第4腿内肢融合的差异。在几个方面,S. heggiensis类似于哈萨克斯坦和乌兹别克斯坦的Bryocyclops(Palaeocyclops)jankowskajae Monchenko。而雄性的第3腿无修饰附肢。heggiensis排除了将其归为Bryocyclops属。雄性第3腿的性质及其它拟形特征。heggiensis可能表明它的祖先比古剑水蚤更早地从剑水蚤祖先线分化出来。一个人口以前未知的属和种的cyclopoid桡足类栖息在短暂的渗流区之间的岩石斜坡上的花岗岩monadnock在美国的格鲁吉亚,我们描述的物种和方面的栖息地和生物学。为了描述,将样品从70%乙醇转移到甘油,然后转移到乳酸。图纸是由
A previously unknown genus and species of cyclopoid copepod, Stolonicyclops heggiensis, was discovered in seepage areas on Heggie's Rock, a granite monadnock in Georgia, U.S.A. The genus is characterized by leg 5 fused to the somite, with 1 dorsal seta and 2 ventral setae on a small knob; the antennule of 11 segments in the female; the swimming legs with 2-segmented rami, except leg 4 endopodite segments partly fused in the female; the spine and seta formulae of swimming legs 2,3,3,3 and 5,4,4,4, respectively; the lack of a seta on the medial (inner) corner of the coxopodite of legs 2-4; leg 4 endopodite segment 2 with 5 appendages; and the lack of sexual dimorphism in the swimming legs, except for the difference in leg 4 endopodite fusion. In several respects, S. heggiensis resembles Bryocyclops (Palaeocyclops) jankowskajae Monchenko from Kazakhstan and Uzbekistan. However, the lack of modified appendages of leg 3 in the male of S. heggiensis precludes assigning it to the genus Bryocyclops. The nature of leg 3 of the male and other plesiomorphic characters of S. heggiensis may indicate that its ancestor diverged earlier than Palaeocyclops from the Bryocyclops ancestral line. A population of a previously unknown genus and species of cyclopoid copepod inhabits ephemeral seepage areas between rock slopes on a granite monadnock in the state of Georgia, U.S.A. We describe the species and aspects of its habitat and biology. For description, the specimens were transferred from 70% ethanol to glycerine and then to lactic acid. Drawings were made from