FB-66158 http://www.fishbase.org/summary/SpeciesSummary.php?id=66158 Animalia Chordata Teleostei Cypriniformes Nemacheilidae Nemacheilus Nemacheilus lunanensis Li & Xia, 1987 Pöördpulss-kivipeakala 2011-06-30 2021-10-25 Lavoué, S., J.P. Sullivan and M.E. Arnegard0 African weakly electric fishes of the genus Petrocephalus (Osteoglossomorpha: Mormyridae) of Odzala National Park, Republic of the Congo (Lékoli River, Congo River basin) with description of five new species. Zootaxa 2600:1-52. (Ref. 85331) Lavoué, S. and J.P. Sullivan0 Petrocephalus boboto and Petrocephalus arnegardi, two new species of African electric fish (Osteoglossomorpha, Mormyridae) from the Congo River basin. ZooKeys 400:43-65. (Ref. 96601) eElurikkus0 eElurikkus koondab ühte portaali Eesti eluslooduse andmed. http://elurikkus.ut.ee/ (Ref. 105471) Lavoué, S.0 Petrocephalus leo, a new species of African electric fish (Osteoglossomorpha: Mormyridae) from the Oubangui River basin (Congo basin). Zootaxa 4121(3):319-330. (Ref. 113655) FB-GeneralDescr-66167 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2011-07-06 00:00:00 2024-03-18 00:00:00 Biology http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=66167 The EOD waveform of Petrocephalus pulsivertens resembles an inverted-polarity version of the 'typical' Petrocephalus EOD (Ref. 85331). Lavoué, S., J.P. Sullivan and M.E. Arnegard 2010 African weakly electric fishes of the genus Petrocephalus (Osteoglossomorpha: Mormyridae) of Odzala National Park, Republic of the Congo (Lékoli River, Congo River basin) with description of five new species. Zootaxa 2600:1-52. (Ref. 85331) FB-DiagnosticDescr-66167 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2011-12-21 00:00:00 2017-11-15 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=66167 Diagnosis: Petrocephalus pulsivertens is distinguished from all other Petrocephalus species in Central Africa by the following combination of characteristics: dorsal fin with at least 25 branched rays; anal fin with at least 31 branched rays; mouth large, the ratio head length and mouth width between 2.0 and 3.7; 15-21 teeth in the upper jaw; 24-30 teeth in the lower jaw; and eye large, the ratio head length and eye-diameter between 3,2 and 3,5 (Ref. 85331). Pigmentation pattern consists of two distinctive melanin markings (black patches): (1) a distinct ovoid mark below the anterior base of the dorsal fin; and (2) a crescent-like mark, sometimes diffuse, centered at the base of the caudal fin and extending onto the upper and lower parts of the caudal fin (Ref. 85331).Description: Body ovoid, longer than high, the ratio standard length and height between 2.6 and 2.9, and laterally compressed (Ref. 85331). Head length between 3.6 and 3.7 times in standard length (Ref. 85331). Eye large, the ration head length and eye-diameter between 3.2 and 3.5 (Ref. 85331). Snout short, the ratio head length and snout length between 6.1 and 7.3, and round (Ref. 85331). Mouth large, the ratio head length and mouth width between 3.0 and 3.7, subterminal, opening just under the anterior half of the eye (Ref. 85331). Teeth bicuspid, small and numerous, 15-21 in a single row in the upper jaw, 24-30 in a single row in the lower jaw (Ref. 85331). Caudal peduncle relatively thin, the ratio caudal peduncle length and caudal peduncle depth between 2.1 and 2.3 (Ref. 85331). Dorsal and anal fins originate in the posterior half of the body; pre-dorsal distance equal to, or slightly greater than, pre-anal distance; dorsal fin with 25-27 branched rays; anal fin with 31-35 branched rays (Ref. 85331). Scales cover the body, except for the head; lateral line visible and complete with 38-40 pored scales along its length; 13-15 scales between the anterior base of the anal fin and the lateral line; 12 scales around the caudal peduncle (Ref. 85331). Skin on head thick, becoming opaque with formalin fixation; knollenorgan electroreceptors on head clustered into three distinct rosettes (Ref. 85331).Colouration: Body and head mostly whitish-silvery, but head also exhibits faint metallic blue-purple iridescence; dorsum darker than the rest of the body; melanin patterning consists of two distinct black marks: a distinct ovoid melanin mark below the anterior base of the dorsal fin on each side of the body and a crescent-like melanin mark, sometimes diffuse, centered at the base of the caudal fin on each side and extending onto the upper and lower parts of the caudal fin; no black mark is present at the base of the pectoral fins; the fins themselves are mostly translucent, with the dorsal and caudal fins sometimes turning slightly yellow after formaldehyde preservation (Ref. 85331). Lavoué, S., J.P. Sullivan and M.E. Arnegard 2010 African weakly electric fishes of the genus Petrocephalus (Osteoglossomorpha: Mormyridae) of Odzala National Park, Republic of the Congo (Lékoli River, Congo River basin) with description of five new species. Zootaxa 2600:1-52. (Ref. 85331) FB-Distribution-66167 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2011-07-06 00:00:00 2017-02-09 22:08:54 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=66167 Africa: middle Congo River basin (Ref. 85331, 113655) in Cameroon, Central African Republic and Republic of Congo. Lavoué, S., J.P. Sullivan and M.E. Arnegard 2010 African weakly electric fishes of the genus Petrocephalus (Osteoglossomorpha: Mormyridae) of Odzala National Park, Republic of the Congo (Lékoli River, Congo River basin) with description of five new species. Zootaxa 2600:1-52. (Ref. 85331) FB-Size-66167 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2011-07-06 00:00:00 2024-03-18 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=66167 11.5 cm SL (male/unsexed; (Ref. 85331)) Lavoué, S., J.P. Sullivan and M.E. Arnegard 2010 African weakly electric fishes of the genus Petrocephalus (Osteoglossomorpha: Mormyridae) of Odzala National Park, Republic of the Congo (Lékoli River, Congo River basin) with description of five new species. Zootaxa 2600:1-52. (Ref. 85331) FB-Threats-2 http://purl.org/dc/dcmitype/Text text/html Belen Acosta 1990-10-18 00:00:00 2024-03-07 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=2 Least Concern (LC) , IUCN Grouper and Wrasse Specialist Group IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006. FB-Habitat-66167 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2011-07-06 00:00:00 2024-03-18 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=66167 benthopelagic; freshwater