03384nas a2200349 4500008004100000022001400041245018800055210006900243260002300312300001200335490000900347520225000356653003002606653001902636653001902655653001902674653001702693653001302710653001402723653002402737100002302761700002202784700001702806700001902823700002002842700002402862700003202886700002502918700002102943700002302964856004702987 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, P.1 aHopkins, Carl, D.1 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.1129.9028702512nas a2200157 4500008004100000022001500041245013600056210006900192260001600261490000900277520182700286100001502113700002302128700002102151856018202172 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, P.1 aVreven, Emmanuel uhttps://www.researchgate.net/publication/333293882_Marcusenius_wamuinii_Teleostei_Mormyridae_a_new_elephantfish_from_the_Mangroves_National_Park_Democratic_Republic_of_the_Congo02342nas a2200145 4500008004100000022001400041245022900055210006900284260001600353520167800369100001902047700002302066700002202089856008502111 2017 eng d a0024-408200aRediscovery and description of Paramormyrops sphekodes (Sauvage, 1879) and a new cryptic Paramormyrops (Mormyridae: Osteoglossiformes) from the Ogooué River of Gabon using morphometrics, DNA sequencing and electrophysiology0 aRediscovery and description of Paramormyrops sphekodes Sauvage 1 cMay-05-20173 a

Species of the African electric fish in the genus Paramormyrops Taverne, Thys van den Audenaerde & Heymer, 1977 constitute a recently recognized species flock with an impressive diversity of electric signals, but only modest morphological differentiation. For more than a century, confusion has surrounded the identity of Paramormyrops sphekodes (Sauvage, 1879), the earliest described species in this genus. Here we compare the morphometrics of type material to new specimens collected at the type locality on the Ogooué River of Gabon from which we additionally study DNA sequences and electric organ discharges (EODs). Based on our findings, we revise the diagnosis and description of P. sphekodes and also identify and describe a new species of Paramormyrops that is large, common and widespread in the Ogooué River basin, but cryptic and easily confounded with P. sphekodes. We designate as lectotype of P. sphekodes a specimen formerly regarded, in error, as the holotype and a second specimen originally collected with the lectotype as paralectotype. We conclude that only nine additional specimens can be identified with confidence as P. sphekodes: four from the type locality and five from a second site 45 km away. Instead of being widespread as previously thought, P. sphekodes may be restricted to a small region of the upper Ogooué River basin. Additionally, we present a revised diagnosis for the genus Paramormyrops Taverne et al., 1977, and key to species from Lower Guinea. This study illustrates the value of vouchered EOD recordings and of revisiting type localities, and lays a foundation for additional systematic work on this group.

1 aRich, Madeline1 aSullivan, John, P.1 aHopkins, Carl, D. uhttps://academic.oup.com/zoolinnean/article-lookup/doi/10.1093/zoolinnean/zlw00403858nas a2200277 4500008004100000022001400041245013400055210006900189260001600258300001400274490000800288520299800296653003003294653000803324653002903332653000803361653002503369653001503394653001403409653001103423653002503434100002303459700002403482700002203506856005203528 2016 eng d a1313-298900aCryptomyrus: a new genus of Mormyridae (Teleostei, Osteoglossomorpha) with two new species from Gabon, West-Central Africa0 aiCryptomyrusi a new genus of Mormyridae Teleostei Osteoglossomor cAug-02-2016 a117 - 1500 v5613 a

Abstract
We use mitochondrial and nuclear sequence data to show that three weakly electric mormyrid fish specimens collected at three widely separated localities in Gabon, Africa over a 13-year period represent an unrecognized lineage within the subfamily Mormyrinae and determine its phylogenetic position with respect to other taxa. We describe these three specimens as a new genus containing two new species. Cryptomyrus, new genus, is readily distinguished from all other mormyrid genera by a combination of features of squamation, morphometrics, and dental attributes. Cryptomyrus ogoouensis, new species, is differentiated from its single congener, Cryptomyrus ona, new species, by the possession of an anal-fin origin located well in advance of the dorsal fin, a narrow caudal peduncle and caudal-fin lobes nearly as long as the peduncle. In C. ona, the anal-fin origin is located only slightly in advance of the dorsal fin, the caudal peduncle is deep and the caudal-fin lobes considerably shorter than the peduncle. Continued discovery of new taxa within the “Lower Guinea Clade” of Mormyridae highlights the incompleteness of our knowledge of fish diversity in West-Central Africa. We present a revised key to the mormyrid genera of Lower Guinea.

Résumé
Nous avons démontré avec des marqueurs mitochondriaux et nucléaires que trois spécimens de poissons mormyridés faiblement électriques, collectés à trois localités au Gabon sur une période de 13 ans, forment une lignée inconnue au sein de la sous famille des Mormyrinae dont nous avons déterminé la position phylogénétique. Nous décrivons un nouveau genre et deux nouvelles espèces pour ces trois spécimens. Cryptomyrus, nouveau genre, se distingue des autres genres de mormyridés par une combinaison de caractères de l’écaillure, morphométriques, et dentaires. Cryptomyrus ogoouensis, nouvelle espèce, se distingue de sa seule espèce congénérique par sa nageoire anale qui commence nettement en avant de sa nageoire dorsale, son pédoncule caudal gracile et les lobes de sa nageoire caudale pratiquement aussi longs que son pédoncule caudal. Chez Cryptomyrus ona, nouvelle espèce, la nageoire anale commence légèrement en avant de l’origine de la nageoire dorsale, le pédoncule caudal est large, et les lobes de la nageoire caudale sont plus courts que le pédoncule caudal. La découverte ininterrompue de nouveaux taxa dans le «clade de basse Guinée» des Mormyridae illustre notre connaissance incomplète de la diversité des poissons de l’ouest de l’Afrique centrale. Nous présentons une clé révisée des genres de Mormyridae de basse Guinée.

10aAfrican freshwater fishes10aDNA10aelectric organ discharge10aEOD10aintegrative taxonomy10aMormyrinae10aphylogeny10ararity10aweakly electric fish1 aSullivan, John, P.1 aLavoué, Sébastien1 aHopkins, Carl, D. uhttp://zookeys.pensoft.net/articles.php?id=713700386nas a2200109 4500008004100000245002900041210002900070260008400099100002100183700002300204856004900227 2015 eng d00aFish detector schematics0 aFish detector schematics aIthaca, NYbHopkins Lab, Dept. of Neurobiology and Behavior, Cornell University1 aHeiligenberg, W.1 aSullivan, John, P. uhttps://mormyrids.myspecies.info/fr/node/472