Description of the glochidia of Westralunio albertisi Clench, 1957 (Bivalvia: Unionida: Hyriidae) from the Fly River system, Papua New Guinea

IF 0.8 4区生物学 Q3 ZOOLOGY

Molluscan Research Pub Date : 2023-04-03 DOI:10.1080/13235818.2023.2203075

M. Klunzinger

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Abstract

ABSTRACT Larvae (glochidia) of the freshwater mussel, Westralunio albertisi were obtained from the marsupia of a preserved female at the Western Australian Museum. Glochidial shells of W. albertisi are subtriangular and scalene in shape outline with a convoluted surface dotted with pores and have a protruding ventral apex. Glochidial shells (n = 60) measured 260.0 μm long (L) (±1.11 SE), 233.1 μm high (H) (± 1.32 SE), with a size of 246.6 μm (± 0.99 SE), hinge length (Hg) of 183.6 μm (± 0.99 SE), larval tooth length (LTL) of 53.6 μm (± 0.84 SE) and angle of obliquity (Á) of 12.9° (± 0.28 SE). Larval teeth are singular in each valve, lack microstylets, have convex or concave basal protuberances on opposing valves and terminate as blunt outward facing spoon-like to peg-like cusps. In comparison to Westralunio carteri, W. albertisi is smaller (d.f., 178; P < 0.001) for L (t = 33.85), H (t = 12.80), Size (t = 28.98), Hg (t = 21.32), H/L (t = −15.06) and Hg/L (t = −4.21). Westralunio albertisi also has a more acute Á than W. carteri (d.f., 71; t, 10.17; P < 0.001), but displays no difference in LTL (d.f., 6; t, 0.16, P = 0.44).

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巴布亚纽几内亚飞河系统的舌蝗描述，1957年(比瓦维亚:舌蝗科:舌蝗科)

摘要：淡水贻贝Westralunio albertisi的幼虫（glochidia）是从西澳大利亚博物馆保存的一只雌性有袋动物身上获得的。艾伯蒂西的肾小球壳外形为近三角形和鳞片状，表面有孔，腹面有突出的先端。肾小球壳（n = 60）测得260.0μm长（L）（±1.11 SE），233.1μm高（H）（±1.32 SE），大小为246.6μm（±0.99 SE），铰链长度（Hg）为183.6μm，幼虫牙齿长度（LTL）为53.6μm，倾角（Á）为12.9°（±0.28 SE）。幼齿在每个瓣中都是单一的，缺乏微型，在相对的瓣上有凸起或凹陷的基部突起，末端为钝的向外的匙状到栓状尖端。与Westralunio carteri相比，W.albertisi较小（d.f.，178；P < 0.001）对于L（t = 33.85），H（t = 12.80），尺寸（t = 28.98），汞柱（t = 21.32），H/L（t = −15.06）和Hg/L（t = −4.21）。Westralunio albertisi也比W.carteri（d.f.，71；t，10.17；P < 0.001），但LTL无差异（d.f.，6；t，0.16，P = 0.44）。

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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.