Proposed changes to the classification system of living coccolithophorids II.
Proposed changes to the classification system of living coccolithophorids II.
复制标题
对活体球石藻分类系统的拟议修改 II。
DOI:
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发表时间:
1990
期刊:
影响因子:
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通讯作者:
B. Heimdal
中科院分区:
文献类型:
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作者:
A. Kleijne;B. Heimdal
TAXONOMIC NOTES 1) Rhabdosphaera clavigera: Murray & Blackman (1898) studied coccolithophores from net haul samples and reported living rhabdospheres for the first time, from which they described the genus and species Rhabdosphaera clavigera. Lohmann (1902) described a second species, R. stylifera, from the Mediterranean, differing from R. clavigera in its appendix shape. The former possesses a thin stem composed of fine elements, whereas the latter has a thicker, coarser stem. In recent taxonomic works (Okada & Mclntyre, 1977; Hallegraeff, 1984) the two species have been regarded as conspecific, with R. clavigera having priority. Intermediate forms have been seen (Borsetti & Cati, 1972; Hallegraeff, 1984; Norris,1984) but we believe that the stem types are distinct enough to be separated as varieties so that future distribution studies may provide useful information on their individual biogeographies.