有鳍章鱼Cirroteuthis Eschricht, 1836(头足纲:卷腹目:卷腹科)证实于澳大利亚水域

IF 0.8 4区生物学 Q3 ZOOLOGY

Molluscan Research Pub Date : 2022-06-17 DOI:10.1080/13235818.2022.2087143

Tristan Joseph Verhoeff

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引用次数: 2

摘要

有鳍章鱼(Cirroteuthis muelleri)在遥远的北半球非常丰富，但在南半球有一种可能未被描述的物种(Cirroteuthis cf. muelleri)的记录有限。2017年，在澳大利亚东部海域进行的一次深海调查中，在收集的材料中发现了一个c.c.m ulelleri标本。该标本在新鲜时的背地幔长度约为116毫米，保存后的背地幔长度约为56毫米，捕获深度为2338 - 2581米。该标本的形态特征与来自新西兰的C. C. muelleri非常接近，与来自北大西洋和北太平洋的C. muelleri的差异，结合其不相交的分布，值得进一步研究南半球标本作为新种的可能性。这一发现代表了Cirroteuthis的重要范围扩展，并且是该属首次在澳大利亚水域出现。

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Finned octopus Cirroteuthis Eschricht, 1836 (Cephalopoda: Cirrata: Cirroteuthidae) confirmed from Australian waters

ABSTRACT The finned octopus Cirroteuthis muelleri is abundant in the far northern hemisphere, yet limited records exist of a possible undescribed southern hemisphere species, Cirroteuthis cf. muelleri. A single specimen of C. cf. muelleri was identified amongst material collected during a 2017 abyssal survey off eastern Australia. The specimen had a dorsal mantle length of about 116 mm when fresh and 56 mm following preservation and was captured at 2338−2581 m depth. Morphological characteristics of this specimen aligned closely with C. cf. muelleri from New Zealand, and differences in these to C. muelleri from the North Atlantic and North Pacific, combined with the disjunct distribution, warrant further investigation of the southern hemisphere specimens as a possible new species. This discovery represents a significant range extension of Cirroteuthis and is the first occurrence of this genus from Australian waters.

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来源期刊

Molluscan Research 生物-动物学

CiteScore

1.80

自引率

10.00%

发文量

审稿时长

>12 weeks

期刊介绍： Molluscan Research is an international journal for the publication of authoritative papers and review articles on all aspects of molluscan research, including biology, systematics, morphology, physiology, ecology, conservation, biogeography, genetics, molecular biology and palaeontology. While the scope of the journal is worldwide, there is emphasis on studies relating to Australasia and the Indo-west Pacific, including East and South East Asia. The journal’s scope includes revisionary papers, monographs, reviews, theoretical papers and briefer communications. Monographic studies of up to 73 printed pages may also be considered. The journal has been published since 1957 (as the Journal of the Malacological Society of Australia until 1993). It is free to members of the Malacological Society of Australasia and the Society for the Study of Molluscan Diversity.