We warmly thank the Contralmirante Germán Vásquez-Solis, President of the Instituto del Mar del Perú (IMARPE) for support and encouragement for us to organize the 6th International Symposium on Pacific Squids and the 5th International Workshop that were held in Lima and Callao, Perú, and the directors, scientists and administrators of IMARPE for their scientific and logistic support during the symposium. Special thanks to the Cephalopod International Advisory Council (CIAC), Ministerio de la Producción (PRODUCE), Consejo Nacional de Ciencia y Tecnología (CONCYTEC), Instituto Tecnológico de la Producción (ITP), the Korean Institute of Ocean Science and Technology (KIOST), Institute de Recherche pour le Développement (IRD) and Ministerio de Comercio Exterior y Turismo (MINCETUR) for their scientific and logistic support.

Angel sharks are distributed worldwide in tropical to subtropical waters. Across the Eastern Pacific Ocean (EPO), two valid species are reported: The Pacific angelshark Squatina californica and the Chilean angelshark Squatina armata; however, there is still uncertainty about their geographic distribution, mainly along the northern Peru coast where the species have been reported to be sympatric. The aim of this study is to describe the genetic differences between the genus Squatina from the EPO, including samples from northern Peru, and using DNA barcoding and three species delimitation models: Poisson tree processes (PTP) model, Bayesian implementation of the PTP (bPTP) model and the general mixed Yule coalescent (GMYC) model. The three approaches summarized 19 nominal Squatina species in 23 consensus Molecular Taxonomic Units (MOTU). Only 16 of them were in accordance with taxonomic ide...