In:
Zoosystematics and Evolution, Pensoft Publishers, Vol. 96, No. 2 ( 2020-06-26), p. 431-447
Abstract:
By means of an integrated approach, including molecular, morphological, anatomical and histological data, we describe a new species of freshwater flatworm of the genus Dugesia from southwest China, representing the third species recorded for the country. Morphologically, the new species, Dugesia umbonata Song & amp; Wang, sp. nov. , is particularly characterised by the presence of a muscularised hump immediately antero-dorsally to a knee-shaped bend in its bursal canal and by an ejaculatory duct that opens subterminally through the dorsal side of the penis papilla. Four molecular datasets (18S rDNA; ITS-1; 28S rDNA; COI) facilitated determination of the phylogenetic position of the new species, which belongs to a clade comprising other species from the Australasian and Oriental regions. We also analysed the structure of its major nervous system by means of the acetylcholinesterase (AChE) histochemical method and compared these results with data available for three other species of Dugesia .
Type of Medium:
Online Resource
ISSN:
1860-0743
,
1435-1935
DOI:
10.3897/zse.96.52484
DOI:
10.3897/zse.96.52484.figure1
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10.3897/zse.96.52484.figure2
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10.3897/zse.96.52484.figure3
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10.3897/zse.96.52484.figure4
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10.3897/zse.96.52484.figure5
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10.3897/zse.96.52484.figure6
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10.3897/zse.96.52484.figure7
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10.3897/zse.96.52484.figure8
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10.3897/zse.96.52484.figure9
DOI:
10.3897/zse.96.52484.suppl1
DOI:
10.3897/zse.96.52484.suppl2
DOI:
10.3897/zse.96.52484.suppl3
DOI:
10.3897/zse.96.52484.suppl4
Language:
Unknown
Publisher:
Pensoft Publishers
Publication Date:
2020
detail.hit.zdb_id:
2420116-9
detail.hit.zdb_id:
1430702-9
SSG:
12
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