03382nas a2200349 4500008004100000022001400041245018800055210006900243260002300312300001200335490000900347520225000356653003002606653001902636653001902655653001902674653001702693653001302710653001402723653002402737100002202761700002102783700001702804700001902821700002002840700002402860700003202884700002502916700002102941700002302962856004702985 2022 eng d a1313-298900aMitogenome recovered from a 19th Century holotype by shotgun sequencing supplies a generic name for an orphaned clade of African weakly electric fishes (Osteoglossomorpha, Mormyridae)0 aMitogenome recovered from a 19th Century holotype by shotgun seq bPensoft Publishers a163-1960 v11293 a

Heteromormyrus Steindachner, 1866, a genus of Mormyridae (Teleostei: Osteoglossomorpha), has been monotypic since the description of Heteromormyrus pauciradiatus (Steindacher, 1866) from a single specimen. No type locality other than “Angola” was given and almost no specimens have been subsequently identified to this species. In order to investigate the relationship of this taxon to fresh specimens collected in Angola and elsewhere, whole genome paired-end sequencing of DNA extracted from the holotype specimen of Heteromormyrus pauciradiatus was performed and a nearly complete mitogenome assembled from the sequences obtained. Comparison of cytochrome oxidase I and cytochrome b sequences from this mitogenome to sequences from recently collected material reveal that Heteromormyrus pauciradiatus is closely related to specimens identified as Hippopotamyrus ansorgii (Boulenger, 1905), Hippopotamyrus szaboi Kramer, van der Bank & Wink, 2004, Hippopotamyrus longilateralis Kramer & Swartz, 2010, as well as to several undescribed forms from subequatorial Africa collectively referred to in the literature as the “Hippopotamyrus ansorgii species complex” and colloquially known as “slender stonebashers.” Previous molecular phylogenetic work has shown that these species are not close relatives of Hippopotamyrus castor Pappenheim, 1906, the type species of genus Hippopotamyrus Pappenheim, 1906 from Cameroon, and are thus misclassified. Hippopotamyrus ansorgii species complex taxa and another species shown to have been misclassified, Paramormyrops tavernei (Poll, 1972), are placed in genus Heteromormyrus and one genetic lineage from the Kwanza and Lucala rivers of Angola are identified as conspecific Heteromormyrus pauciradiatus. Three additional new combinations and a synonymy in Mormyridae are introduced. The morphological characteristics and geographical distribution of the genus Heteromormyrus are reviewed. The electric organ discharges (EODs) of Heteromormyrus species are to be treated in a separate study.

10aAngolan freshwater fishes10aHeteromormyrus10aHippopotamyrus10ahistorical DNA10amitogenomics10amormyrid10amuseomics10aslender stonebasher1 aSullivan, John, P1 aHopkins, Carl, D1 aPirro, Stacy1 aPeterson, Rose1 aChakona, Albert1 aMutizwa, Tadiwa, I.1 aMukweze Mulelenu, Christian1 aAlqahtani, Fahad, H.1 aVreven, Emmanuel1 aDillman, Casey, B. uhttps://doi.org/10.3897/zookeys.1129.9028702511nas a2200157 4500008004100000022001500041245013600056210006900192260001600261490000900277520182700286100001502113700002202128700002102150856018202171 2019 eng d a0936-9902 00aMarcusenius wamuinii (Teleostei: Mormyridae), a new elephantfish from the Mangroves National Park, Democratic Republic of the Congo0 aMarcusenius wamuinii Teleostei Mormyridae a new elephantfish fro c15 May 20190 v10903 a

Marcusenius wamuinii, a new large-scaled Marcusenius species, is described from the Mangroves National Park (MNP), a protected area situated at the mouth of the Lower Congo basin and its surroundings in the DR Congo. It can be distinguished from all its congeners based on the following unique combination of characteristics: 8 circumpeduncular scales, 27-31 anal-fin rays, 22-25 dorsal-fin rays, 19-22 scales between dorsal and anal fin, 46-53 lateral line scales, and a slender caudal peduncle (depth 4.4-5.9 % SL). Its status as a distinct species is ad- ditionally confirmed by genetic data from the mitochondrial cytochrome b gene. This is the first new fish species discovered in the MNP, highlighting the importance of freshwater conservation in this area in which the fish fauna is still poorly known.
Marcusenius wamuinii, une nouvelle espèce de Marcusenius à grandes écailles est décrite du Parc Marin des Mangroves (PMM), une zone protégée située dans l’embouchure du Bas Congo et ses environs en RD Congo. Elle se distingue de tous ses congénères sur la base de la combinaison unique des caractères suivants : 8 écailles circumpédonculaires, 27-31 rayons à la nageoire anale, 22-25 rayons à la nageoire dorsale, 19-22 écailles entre les nageoires dorsale et anale, 46-53 écailles en ligne latérale et un pédoncule caudal mince (hauteur 4.4-5.9 % SL). Son statut d’espèce distincte est également confirmé à base de résultats génétiques sur le gène mitochondrial cytochrome b. Ceci est la première nouvelle espèce de poisson découverte dans le PMM, soulignant l’importance de la conservation des eaux douces dans cette Zone, dont la faune de poissons est encore largement méconnue.

1 aDecru, Eva1 aSullivan, John, P1 aVreven, Emmanuel uhttps://www.researchgate.net/publication/333293882_Marcusenius_wamuinii_Teleostei_Mormyridae_a_new_elephantfish_from_the_Mangroves_National_Park_Democratic_Republic_of_the_Congo