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Wallace’s Pike Cichlid Gets a Name after 160 Years: A New Species of CichlidFish (Teleostei: Cichlidae) from the Upper Rio Negro in Brazil
Swedish Museum of Natural History, Department of Zoology. (Ichthyology)ORCID iD: 0000-0001-6075-0266
Museu de Zoologia da Universidade de São Paulo. (Ictiologia)
2015 (English)In: Copeia, ISSN 0045-8511, E-ISSN 1938-5110, Vol. 103, no 3, 512-519 p.Article in journal (Refereed) Published
Abstract [en]

cichlid species first collected by Alfred Russell Wallace in the upper Rio Negro in 1852, lost during the transport toEngland but documented in drawings, is described as Crenicichla monicae on the basis of three specimens collected by the Swedish Amazonas Expedition 1923–1925. Crenicichla monicae is most similar to C. johanna, C. rosemariae, and one undescribed species which are characterized by cycloid scales, distinguishing them from other species of the genus in which most scales are ctenoid. Crenicichla monicae is recorded only from the lower Rio Uaupés and lower Rio Ic¸ana,tributaries of the upper Rio Negro, and is sympatric with the similar species C. johanna and C. lenticulata. It isdistinguished from all other species of Crenicichla by the color pattern in females, with scattered dark spots on the upperhalf of the side and on the dorsal and caudal fins. Crenicichla monicae is a member of the C. lugubris species group,characterized by very small scales in a large number along the middle of the side (89–126 scales in E1 row), blunt snout,and particular ontogenetic transformation of color pattern

Abstract [pt]

Uma espécie de ciclídeo coletada por Alfred Russell Wallace no alto Rio Negro em 1852, que foi perdida no transporte á Inglaterra mas documentada em desenhos, é descrita como Crenicichla monicae com base em trés espécimes coletados pela Swedish Amazonas Expedition 1923–1925. Crenicichla monicae é semelhante a C. johanna, C. rosemariae e uma espécie ainda não descrita por possuir escamas cicloídes no corpo distinguindo-as das demais espécies do gênero nas quais a maioria das escamas é ctenoíde. Crenicichla monicae é conhecida apenas do baixo Rio Uaupés e baixo Rio Içana,ambos tributários do alto Rio Negro, e é simpátrica com as espécies C. johanna e C. lenticulata, às quais é similar. A nova espécie é distinta de todas as outras espécies do gênero pelo padrão de colorido das fêmeas, que possuem manchas escuras espalhadas na metade superior dos flancos e nas nadadeiras dorsal e caudal. Ela pertence ao grupo de espécies C. lugubris, caracterizado pelas escamas muito pequenas e em grande número nos flancos (89–126 ou mais escamas na série E1), focinho rombudo e mudança ontogenética de colorido peculiar.

Place, publisher, year, edition, pages
2015. Vol. 103, no 3, 512-519 p.
Keyword [en]
Freshwater, taxonomy, South America, Crenicichla, morphology, Swedish Amazonas Expedition
National Category
Biological Systematics
Research subject
Diversity of life
Identifiers
URN: urn:nbn:se:nrm:diva-1427DOI: 10.1643/CI-14-169OAI: oai:DiVA.org:nrm-1427DiVA: diva2:874584
Available from: 2015-11-27 Created: 2015-11-27 Last updated: 2015-11-30Bibliographically approved

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CiteExportLink to record
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