Hyperiids (Amphipoda, Hyperiidea) collected during the TALUD cruises in western Mexico. 5. Family Amphithyridae, with the description of a new species of Amphithyropsis Zeidler Author Gasca, Rebeca 0000-0002-9716-1964 El Colegio de la Frontera Sur, Unidad Chetumal, Av. del Centenario km 5.5, Chetumal, Quintana Roo, 77014, Mexico. & rgasca @ ecosur. mx; https: // orcid. org / 0000 - 0002 - 9716 - 1964 rgasca@ecosur.mx Author Suárez-Morales, Eduardo 0000-0003-2051-8707 El Colegio de la Frontera Sur, Unidad Chetumal, Av. del Centenario km 5.5, Chetumal, Quintana Roo, 77014, Mexico. & esuarez @ ecosur. mx; https: // orcid. org / 0000 - 0003 - 2051 - 8707 esuarez@ecosur.mx Author Hendrickx, Michel E. Laboratorio de Invertebrados Bentónicos, Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, PO Box 811, Mazatlán, 82000 Sinaloa, Mexico text Zootaxa 2021 2021-09-17 5039 4 479 494 journal article 10.11646/zootaxa.5039.4.2 1175-5326 5515939 DD56F2C2-D5F5-4B42-8462-0DAD3A482846 Paralycaea gracilis Claus, 1879 Paralycaea gracilis Claus, 1879: 40 ; Siegel-Causey, 1982: 280 ; Vinogradov et al ., 1996: 466 , fig. 203; Brusca & Hendrickx, 2005: 153 (list); García Madrigal, 2007: 162 (list); Gasca, 2009: 88 (tab. 1); Lavaniegos & Hereu, 2009: 152 (Appendix 1); Gasca et al ., 2012: 126 (tab 1), 136; Lavaniegos, 2014: 4 (tab. 1); Valencia & Giraldo, 2012: 1491‒1496 (passim), 1492 (tab. 1), 1496 (tab. 3); Valencia et al ., 2013: 51 (tab. 1); Gómez-Gutiérrez et al ., 2014: 1019 (tab. 3); Zeidler, 2016: 36 , figs. 11–12, 39 (key). Material examined . 7M, 3F from 6 stations ( Fig. 3 ). TALUD III , St. 19 ( 25°12’00”N , 109°07’00”W ), August 20, 1991 , 1M, 1F, I-K, from surface to 410 m (TD, 920 m ) (ECO-CH-Z-10544); St. 25A1 ( 25°51’00”N , 109°57’00”W ), August 21, 1991 , 2M, I-K from surface to 200 m (TD, 1280‒1360 m ) (ICML-EMU-12884-A); St. 19B ( 25°18’24”N , 109°18’36”W ), August 20, 1991 , 2M, I-K from surface to 600 m (TD, 1890 m ) (ICML-EMU-12884-B). TALUD VI . St. 7 ( 22°21’39”N , 107°01’42”W ), March 14, 2001 , 1F, MN from surface to 1305 m (TD, 2100 m ) (ICML- EMU-12885) . TALUD XI . St. 19B ( 17°56’00”N , 103°10’00”W ), June 9, 2007 , 1F, MN from surface to 1490 m (TD, 1750 m ) (ICML-EMU-12886) . TALUD XII . St. 15C ( 17°27’51”N , 102°10’43”W ), March 31, 2008 , 2M, MN from surface to 1530 m (TD, 1880 m ) (ICML-EMU-12887) . FIGURE 3. Localities where Paralycaea gracilis and P. hoylei were captured during this survey. Distribution . Atlantic (south of 59°N ), Pacific ( Australia and New Zealand ), and eastern Indian Oceans; Mediterranean ( Vinogradov et al . 1996 ). The genus Paralycaea is widely distributed in tropical and temperate regions worldwide, mainly in near-surface waters ( Zeidler 2016 ). In the eastern Pacific from off the west coast of Baja California and the Gulf of California (up to 28°N ), north and south of Maria Madre Island, Mexico , and south to off Gorgona Island, Colombia ( García Madrigal 2007 , Valencia & Giraldo 2012 , Gómez-Gutierrez et al . 2014 ). Remarks . Paralycaea gracilis , previously included in the family Pronoidae (see Siegel-Causey 1982 , Zeidler 1998 ), was recently moved to the family Amphithyridae described by Zeidler (2016) .