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A new species of Lecithostaphylus Odhner, 1911 (Trematoda: Zoogonidae) from the Pacific needlefish, Tylosurus pacificus, off the Pacific coast of Mexico, with a molecular assessment of the phylogenetic position of this genus within the family
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A new species of Lecithostaphylus Odhner, 1911 (Trematoda: Zoogonidae) from the Pacific needlefish, Tylosurus pacificus, off the Pacific coast of Mexico, with a molecular assessment of the phylogenetic position of this genus within the family
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A new species of Lecithostaphylus Odhner, 1911 (Trematoda: Zoogonidae) from the Pacific needlefish, Tylosurus pacificus, off the Pacific coast of Mexico, with a molecular assessment of the phylogenetic position of this genus within the family
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Journal Article
A new species of Lecithostaphylus Odhner, 1911 (Trematoda: Zoogonidae) from the Pacific needlefish, Tylosurus pacificus, off the Pacific coast of Mexico, with a molecular assessment of the phylogenetic position of this genus within the family
2020
Overview
A new species of
Lecithostaphylus
Odhner,
1911
(Zoogonidae) is described from the Pacific agujon needlefish,
Tylosurus pacificus
(Steindachner) (Belonidae), from two localities off the Pacific coast of Mexico. Morphologically, the new species agrees with the diagnosis of the genus
Lecithostaphylus
.
Lecithostaphylus brayi
sp. nov. differs from other congeneric species by a combination of morphological traits, including the overall body size, anterior and posterior extension of the vitelline follicles in the hindbody, and the presence/absence of papilla-like denticles on internal surface of ventral sucker.
Lecithostaphylus brayi
sp. nov. most closely resembles
L. retroflexus
(Molin,
1859
), Odhner,
1911
and
Lecithostaphylus tylosuri
Châari, Derbel & Neifar,
2013
from Mediterranean needlefishes and
Lecithostaphylus nitens
(Linton,
1898
) Linton,
1940
from needlefishes in multiple marine ecoregions; however, it can be distinguished by subtle morphological differences, host association, and geographical distribution. The new species will require further verification through a more detailed morphological study of
L. nitens
and, ideally, molecular data for
L. nitens
,
L. retorflexus
, and
L. tylosuri
. Newly generated 28S rDNA sequences allowed a phylogenetic assessment of the genus and show that
Lecithostaphylus
clades within the Zoogonidae, sister to the genera
Deretrema
Linton,
1910
+
Proctophantastes
Odhner,
1911
, although the family Zoogonidae is not resolved as monophyletic. The inclusion of more representative genera in the molecular phylogenetic analysis will be needed to generate a more robust classification scheme for the Zoogonidae, and to discuss host specificity patterns for members of the family.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
