Trematodes (Plathelminthes) of Clarias gariepinus (Pisces: Clariidae) in Lake Tana, Ethiopia

Zhokhov, A. E.; Morozova, D. A.; Pugacheva, M. N.

doi:10.1134/s1995082917020171

Cited by 6 publications

(1 citation statement)

References 8 publications

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“…The African Masenia species have been described from three clariid hosts (Clarias melandi Boulenger, C. senegalensis Valenciennes and Heterobranchus longifilis Valenciennes) and one mochokid host (Synodontis victoriae Boulenger). Only M. bangweulensis has been recorded in C. gariepinus by El-Naggar et al (1992), Zhokhov et al (2017), Mwita & Nkwengulila (2004, 2010. The new species was found exclusively parasitising C. gariepinus.…”

Section: Host Specificitymentioning

confidence: 99%

Masenia nkomatiensis n. sp. (Digenea: Cephalogonimidae) from Clarias gariepinus (Burchell) (Clariidae) in Incomati Basin, Mozambique

2019

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A new species of Masenia Chatterji, 1933 is described based on material from the intestine of Clarias gariepinus (Burchell) in the Incomati River, Mozambique. The combination of morphological characteristics and analysis of 18S and 28S rDNA sequences delineated the specimens found in the present study as a distinct species. The new form is distinguished from other Masenia spp. in having a large reniform seminal receptacle, a cirrus-sac ending anterior to the ventral sucker, intestinal caeca extending into the hindbody to the level of the posterior testis, and the vitelline fields extending anteriorly to the ventral sucker and posteriorly to the middle of the ovary. Notably, the new form is the only record of African species having a sac-shaped excretory vesicle. Analysis of 28S rDNA sequence data supported its placement in the Cephalogonimidae Looss, 1899. 18S analyses also supported its placement in this family but showed it was not closely related to Masenia bangweulensis (Beverley-Burton, 1962), the sole other African species for which genetic data is currently accessible. The total pairwise differences for 18S and 28S sequences showed the new form differing from other cephalogonimids. Thus, both morphological and genetic characteristics indicate that the present form represents a distinct species, here described as Masenia nkomatiensis n. sp. An updated key to African Masenia spp., now five, is provided. This article was registered in the Official Register of Zoological Nomenclature (ZooBank) as CD42E301-768B-498B-8B67-80FDA85BB40A. This article was published as an Online First article on the online publication date shown on this page. The article should be cited by using the doi number. This is the Version of Record. This article is part of the Topical Collection Digenea.

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Section: Host Specificitymentioning

confidence: 99%