Karyotype variability and molecular heterogeneity in Xyrichthys novacula (Labridae, Perciformes) possibly disclosing cryptic species - Gaviria, J. I.; Nirchio, M.; Sene, V. F. [UNESP]; Sicha, R. [UNESP]; Oliveira, C. [UNESP]; Angiulli, E.; Sola, L.; Rossi, A. R. (Springer, 2014)