In:
ZooKeys, Pensoft Publishers, Vol. 925 ( 2020-04-08), p. 141-161
Abstract:
Adults of trematodes in the genus Xystretrum Linton, 1910 (Gorgoderidae, Gorgoderinae) are parasites found exclusively in the urinary bladders of tetraodontiform fishes. However, limited and unclear morphological data were used to describe the type species, X. solidum Linton, 1910. Here, we present the first detailed morphological information for a member of Xystretrum . Morphological characters were described using light and scanning electron microscopy (SEM) of Xystretrum specimens from Sphoeroides testudineus (Linnaeus) (Tetraodontiformes, Tetraodontidae), collected at six localities off the northern Yucatan Peninsula coast of the Gulf of Mexico. We also compared sequence fragments of the 28S (region D1–D3) ribosomal DNA and mitochondrial Cytochrome c oxidase subunit 1 (COI) gene with those available for other gorgoderine taxa. We assigned these Xystretrum specimens to X. solidum , despite the incompleteness of published descriptions. The data provide a foundation for future work to validate the identities of X. solidum , X. papillosum Linton, 1910 and X. pulchrum (Travassos, 1920) with new collections from the type localities and hosts. Comparisons of 28S and COI regions described here also provide an opportunity to evaluate the monophyletic status of Xystretrum .
Type of Medium:
Online Resource
ISSN:
1313-2970
,
1313-2989
DOI:
10.3897/zookeys.925.49503
DOI:
10.3897/zookeys.925.49503.figure1
DOI:
10.3897/zookeys.925.49503.figure2
DOI:
10.3897/zookeys.925.49503.figure3
DOI:
10.3897/zookeys.925.49503.figure4
DOI:
10.3897/zookeys.925.49503.figure5
DOI:
10.3897/zookeys.925.49503.suppl1
DOI:
10.3897/zookeys.925.49503.suppl2
Language:
Unknown
Publisher:
Pensoft Publishers
Publication Date:
2020
detail.hit.zdb_id:
2445640-8
SSG:
12
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