Author Correction: From taxonomic deflation to newly detected cryptic species: Hidden diversity in a widespread African squeaker catfish.

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

From taxonomic deflation to newly detected cryptic species: Hidden diversity in a widespread African squeaker catfish.

Cryptic genetic diversity and erroneous morphological species determination represent frequent problems in biodiversity research. Here, examination of 138 specimens of Synodontis (Mochokidae, Siluriformes) from the Nile River and Lake Turkana revealed the presence of both S. schall-like and S.

Species of Characidotrema Paperna & Thurston, 1968 (Monogenea: Dactylogyridae) from fishes of the Alestidae (Characiformes) in Africa: new species, host-parasite associations and first insights into the phylogeny of the genus.

Background: African tetras (Alestidae) belonging to Brycinus Valenciennes are known to be parasitized with monogeneans attributed to two genera, Annulotrema Paperna & Thurston, 1969 and Characidotrema Paperna & Thurston, 1968 (Dactylogyridae). During a survey of monogeneans parasitizing alestids, species of Characidotrema were collected in Cameroon, D. R.

Quadriacanthus species (Monogenea: Dactylogyridae) from catfishes (Teleostei: Siluriformes) in eastern Africa: new species, new records and first insights into interspecific genetic relationships.

Background: African catfishes of the families Bagridae and Clariidae are known to be parasitized with monogeneans of Quadriacanthus Paperna, 1961 (Dactylogyridae). The genus remains taxonomically challenging due to its speciose nature and relatively wide host range representing two fish orders, i.e.

Revision of Wenyonia Woodland, 1923 (Cestoda: Caryophyllidea) from catfishes (Siluriformes) in Africa.

Tapeworms of the genus Wenyonia Woodland, 1923 (Caryophyllidea: Caryophyllaeidae), parasites of catfishes in Africa, are revised. This revision is based on material from large-scale sampling, in the Democratic Republic of the Congo, Kenya, Senegal and the Sudan between 2006 and 2009, and the examination of all of the type-specimens available. The following six species are considered valid and their redescriptions are provided: Wenyonia virilis Woodland, 1923 (type-species; new synonym W.

Redescription of Proteocephalus glanduligerus (Cestoda: Proteocephalidea), a parasite of clariid catfishes in Africa with a unique glandular apical organ.

The tapeworm Proteocephalus glanduligerus (Janicki, 1928) Fuhrmann, 1933 (Cestoda: Proteocephalidea), a parasite of clariid catfishes (Clarias spp.) in Africa, is redescribed on the basis of an evaluation of voucher material and newly collected specimens from Clarias gariepinus and C. cf.

Sandonella sandoni (Lynsdale, 1960), an enigmatic and morphologically unique cestode parasitic in the osteoglossiform fish Heterotis niloticus in Africa.

Sandonella sandoni (Lynsdale, 1960) is the type and only species of the Sandonellinae, a cestode subfamily of unclear phylogenetic position. It is redescribed here on the basis of a re-examination of its syntypes, voucher specimens from museum collections, and freshly collected material from the intestine of Heterotis niloticus (Osteoglossiformes: Arapaimidae) from Benin, Nigeria, Senegal, and the Sudan. The species possesses several unique morphological characters, such as (1) a vitellarium formed by 2 compact, but deeply lobulated, postovarian masses near the posterior margin of proglottids; (2) a scolex with a highly modified apical structure formed by 4 muscular retractile lappets; (3) a well-developed circular musculature, which is external to the inner longitudinal muscles; (4) a dilated, vesicle-like proximal part of the external sperm duct; (5) the unique morphology of the uterus and its development, which represents an intermediate form between the 2 basic types recognized in the Proteocephalidea; (6) the growth of eggs during their development within the uterus; and (7) the complex proglottization with intermingled smaller and larger (wider) proglottids.