Globunio mirificus Chen, Dai, Huang & Wu, 2025

Dai, Yu-Ting, Chen, Zhong-Guang, Ouyang, Shan, Huang, Xiao-Chen & Wu, Xiao-Ping, 2025, A new tribe, genus, and species of freshwater mussel from the Changjiang River Basin in China (Bivalvia, Unionidae, Unioninae), Zoosystematics and Evolution 101 (2), pp. 779-790 : 779-790

publication ID

https://doi.org/10.3897/zse.101.151083

publication LSID

lsid:zoobank.org:pub:219F8CF1-F488-4B0C-9C65-F8FD98331040

DOI

https://doi.org/10.5281/zenodo.15190377

persistent identifier

https://treatment.plazi.org/id/27063478-D643-543C-8F9B-374ABF22786D

treatment provided by

Zoosystematics and Evolution by Pensoft

scientific name

Globunio mirificus Chen, Dai, Huang & Wu
status

sp. nov.

Globunio mirificus Chen, Dai, Huang & Wu sp. nov.

Figs 4 View Figure 4 , 6 C, D View Figure 6

Holotype.

24_NCU_XPWU_GM 01 , ♀, Honggutan District [红谷滩区], Nanchang City [南昌市], Jiangxi Province [江西省], China, 24.68146°N, 109.69794°E, leg. Zhong-Guang Chen & Yu-Ting Dai, September 2022. GoogleMaps

Paratypes.

n = 10, 24_NCU_XPWU_GM 02 , Honggutan District [红谷滩区], Nanchang City [南昌市], Jiangxi Province [江西省], China, 24.68146°N, 109.69794°E, leg. Zhong-Guang Chen, December 2021 GoogleMaps ; 24_NCU_XPWU_GM 03 –11, other information same as holotype GoogleMaps .

Diagnosis.

Same as the tribe.

Description.

Shell small-sized, elongated-globular, inflated, thick, solid. Anterior extremely short, inflated, and round; posterior long and flat. Anterior margin rounded, dorsal margin straightened, and slope downward at an obtuse angle, usually covered in fine upward wrinkles; ventral margin weakly curved. Umbo inflated, under dorsal margin, almost at the very front of the shell, often eroded. Central of shell with two rows of posterior dorsal spines (usually detached with only attachment marks), the anterior row longer and the posterior row shorter. Periostracum yellowish-green with olive-green rays and several thick growth lines. Hinge short and strong. Hinge developed. Left valve with two pseudocardinal teeth, anterior tooth small, triangular-shaped, posterior tooth well-developed, rectangular-shaped; right valve with a single well-developed, pyramidal pseudocardinal tooth. Both valves with two lateral teeth: left valve external weak, internal well-developed; right valve external well-developed, internal weak. Mantle attachment scars on the pallial line obvious. Anterior adductor muscle scars deep, samll; posterior adductor muscle scars shallow, orbicular-shaped. Umbo cavity open, deep. Nacre milky white.

Measurements.

Shell length 15.07–32.37 mm, width 9.83–21.54 mm, height 13.06–19.30 mm.

Etymology.

The species is named after the Latin mirificus for remarkable, referring to the remarkable shell morphology of this species.

Vernacular name.

奇异球蚌 (qí yì qiú bàng).

Distribution and ecology.

Known from three localities of the Changjiang River Basin: the Ganjiang River at Nanchang, the Dongtinghu Lake at Yueyang, and the Qingyijiang River at Wuhu (Fig. 5 View Figure 5 ). Living in the slow-flowing rivers and lakes with muddy and sandy substrates alongside dozens of other freshwater mussels (Fig. 6 View Figure 6 ).

Kingdom

Animalia

Phylum

Mollusca

Class

Bivalvia

Order

Unionida

Family

Unionidae

SubFamily

Unioninae

Tribe

Globunionini

Genus

Globunio