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A new species of Roeboides (Teleostei: Characidae) from Costa Rica and Panama, with a key to the middle American species of the genus
Matamoros, Wilfredo A; Chakrabarty, Prosanta; Angulo, Arturo; Garita-Alvarado, Carlos A; McMahan, Caleb D.
  • Matamoros, Wilfredo A; University of Southern Mississippi. Department of Biological Sciences. Hattiesburg. US
  • Chakrabarty, Prosanta; Louisiana State University. Museum of Natural Science. Department of Biological Sciences. Ichthyology Section. Baton Rouge. US
  • Angulo, Arturo; Universidad de Costa Rica. Escuela de Biología. Museo de Zoología. San José. CR
  • Garita-Alvarado, Carlos A; Universidad de Costa Rica. Escuela de Biología. Museo de Zoología. San José. CR
  • McMahan, Caleb D; Louisiana State University. Museum of Natural Science. Department of Biological Sciences. Ichthyology Section. Baton Rouge. US
Neotrop. ichthyol ; 11(2): 285-290, jun. 2013. tab, graf
Article in English | LILACS | ID: lil-679347
ABSTRACT
A new species of Roeboides is described from the Pacific slope of Costa Rica and Panama. Roeboides bussingi differs from all other Central American Roeboides and all members of the R. guatemalensis species group by the following combination of characters presence of 18-22 scales above the lateral line (vs. 12-16 in R. dientito); 15-22 scales below the lateral line (vs. 10-14 in R. dientito, and 20-24 in R. loftini); an inconspicuous, sometimes absent, crescent-shaped humeral spot (vs. a large round, conspicuous humeral spot in R. carti, R. dayi, R. dientonito, R. ilseae, R. loftini, and R. occidentalis); a small wedge-shaped spot that does not reach the lateral line (vs. a large spot crossing the lateral line in R. guatemalensis); a teardrop shaped caudal spot (vs. caudal spot triangle shaped in R. bouchellei); and a dark band at the distal tip of the anal fin (vs. dark band absent in R. bouchellei). A key to all Middle American species of Roeboides is also presented.
RESUMO
Uma espécie nova de Roeboides é descrita da vertente pacífica da Costa Rica e Panamá. Roeboides bussingi difere de todas as outras espécies de Roeboides da América Central e de todos os membros do grupo R. guatemalensis pela seguinte combinação de caracteres presença de 18-22 escamas acima da linha lateral (vs. 12-16 em R. dientito); 15-22 escamas abaixo da linha lateral (vs. 10-14 em R. dientito e 20-24 em R. loftini); mancha umeral inconspícua, as vezes ausente, no formato de meia lua (vs. mancha humeral conspicua e arredondada em R. carti, R. dayi, R. dientonito, R. ilseae, R. loftini e R. occidentalis); pequena mancha em forma de cunha, não alcançando a linha lateral (vs. mancha grande, atravessando a linha lateral em R. guatemalensis); mancha do pedúnculo caudal em formato de gota d'água (vs. mancha caudal com formato triangular em R. bouchellei); banda escura na margem distal da nadadeira anal (vs. banda escura ausente em R. Bouchellei). Uma chave para todas as espécies de Roeboides da América Média é fornecida.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Characidae / Animal Distribution Limits: Animals Country/Region as subject: Central America / Costa Rica / Panama Language: English Journal: Neotrop. ichthyol Journal subject: Biology / Molecular Biology / Physiology / Genetics / Environmental Health / ZOOLOGIA Year: 2013 Type: Article Affiliation country: Costa Rica / United States Institution/Affiliation country: Louisiana State University/US / Universidad de Costa Rica/CR / University of Southern Mississippi/US

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Full text: Available Index: LILACS (Americas) Main subject: Characidae / Animal Distribution Limits: Animals Country/Region as subject: Central America / Costa Rica / Panama Language: English Journal: Neotrop. ichthyol Journal subject: Biology / Molecular Biology / Physiology / Genetics / Environmental Health / ZOOLOGIA Year: 2013 Type: Article Affiliation country: Costa Rica / United States Institution/Affiliation country: Louisiana State University/US / Universidad de Costa Rica/CR / University of Southern Mississippi/US