Zootaxa 4642 (1): 001–079 ISSN 1175-5326 (print edition) https://www.mapress.com/j/zt/ Monograph ZOOTAXA Copyright © 2019 Magnolia Press ISSN 1175-5334 (online edition) https://doi.org/10.11646/zootaxa.4642.1.1 http://zoobank.org/urn:lsid:zoobank.org:pub:42548CEC-E20A-425A-AD8B-5EED9F9DF063 ZOOTAXA 4642 Molecular phylogenetics of snailfishes (Cottoidei: Liparidae) based on MtDNA and RADseq genomic analyses, with comments on selected morphological characters JAMES WILDER ORR1, INGRID SPIES2, DUANE E. STEVENSON3, GARY C. LONGO4, YOSHIAKI KAI5, SAM GHODS6 & MYLES HOLLOWED7 1NOAA, National Marine Fisheries Service, Alaska Fisheries Science Center, RACE Division, 7600 Sand Point Way NE, Seattle, Washington, 98115, U.S.A. E-mail:
[email protected] 2NOAA, National Marine Fisheries Service, Alaska Fisheries Science Center, REFM Division, 7600 Sand Point Way NE, Seattle, Washington, 98115, U.S.A. E-mail:
[email protected] 3NOAA, National Marine Fisheries Service, Alaska Fisheries Science Center, RACE and FMA Divisions, 7600 Sand Point Way NE, Seattle, Washington, 98115, U.S.A. E-mail:
[email protected] 4NOAA, National Marine Fisheries Service, Northwest Fisheries Science Center, 2725 Montlake Boulevard East, Seattle, Washing- ton, 98112, U.S.A. E-mail:
[email protected] 5Maizuru Fisheries Research Station, Field Science Education and Research Center, Kyoto University, Nagahama, Maizuru, Kyoto 625-0086, Japan. E-mail:
[email protected] 6School of Aquatic and Fishery Sciences, and Burke Museum of Natural History and Culture, University of Washington, Seattle, Washington, 98195, U.S.A. E-mail:
[email protected] 7School of Aquatic and Fishery Sciences, and Burke Museum of Natural History and Culture, University of Washington, Seattle, Washington, 98195, U.S.A.