Non-blue Haslea species (Bacillariophyceae: Naviculaceae) in the benthic marine flora of Guam (Mariana Islands, Western Pacific Ocean).

IF 1.9 3区生物学 Q2 MARINE & FRESHWATER BIOLOGY

Diatom Research Pub Date : 2020-04-02 DOI:10.1080/0269249X.2020.1761887

C. Lobban, C. Perez, M. Ashworth

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引用次数: 4

Abstract

In recent years the taxonomy of Haslea has been in flux. We describe several Haslea taxa from Guam, including four new species, in light of these recent findings. Four delicate, fusiform Haslea species are described from a variety of benthic habitats on coral reefs. These species, H. fusiformis comb. nov. and H. alexanderi, H. apoloniae and H. guahanensis spp. nov. are distinguished by stria density, foramen (‘areola’) shape, and cell size from each other and from similar taxa. A key to all these taxa is provided. In addition, an arcuate species is described as Haslea arculata sp. nov. The presence of a bilayered wall is shown for all these taxa. We compare the morphology of specimens reported as H. howeana from Guam with Navicula tsukamotoi, recently described from Okinawa, and with ‘Navicula cf. howeana’ from Puerto Rico. We provide the first account of the complex cingulum of N. tsukamotoi. We conclude that our specimens match N. tsukamotoi and that H. howeana should be returned to Navicula, but we leave open the question of conspecificity.

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关岛(马里亚纳群岛，西太平洋)底栖海洋植物区系中的非蓝色haaslea种(硅藻科:Naviculaceae)。

近年来，haaslea的分类一直在变化。根据这些最近的发现，我们描述了几个来自关岛的Haslea分类群，包括四个新种。四种精致的梭状haaslea物种来自珊瑚礁的各种底栖生物栖息地。这些种，梳毛蛛。11 .与H. alexanderi, H. apoloniae和H. guahanensis sp . 11 .在纹密度，孔(“乳晕”)形状和细胞大小上彼此不同，并且与相似的分类群相区别。提供了所有这些分类群的钥匙。此外，一个弓形物种被描述为Haslea arculata sp. 11 .。所有这些分类群都存在双层壁。我们比较了来自关岛的H. howeana与最近在冲绳描述的Navicula tsukamotoi以及来自波多黎各的Navicula cf. howeana标本的形态。我们提供了N. tsukamotoi复杂带的第一个帐户。我们得出的结论是，我们的标本与冢本氏蜱相匹配，豪瓦纳氏蜱应该返回Navicula，但我们对同一性的问题没有定论。

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来源期刊

Diatom Research 生物-海洋与淡水生物学

CiteScore

2.70

自引率

16.70%

发文量

审稿时长

>12 weeks

期刊介绍： Diatom Research is the journal of the International Society for Diatom Research. The journal is published quarterly, in March, June, September and December, and welcomes manuscripts on any aspect of diatom biology. In addition to full-length papers, short notes and reviews of recent literature are published which need not contain all the sections required for full-length papers; we see these as being necessary to record information which is of interest but which cannot be followed up in detail. Discursive “Opinion” papers are encouraged which would not necessarily follow the normal lay-out. If extremely long papers are to be offered, the author(s) should contact the editors first to discuss any problems. Book reviews, obituaries and meeting reports can be published. All papers will be subject to critical review by the editors and referees, as appropriate to their content. Papers will be accepted in English only.