Eupronoe maculata Claus 1879

• Main Authors: Gasca, Rebeca, Hendrickx, Michel E.
• Format: Text
• Language: unknown
• Published: Zenodo 2021
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Pronoidae; Eupronoe; Eupronoe maculata; Baja; Pacific; Morales; Suarez; Dominguez; Subarctic
• Online Access: https://dx.doi.org/10.5281/zenodo.4669984; https://zenodo.org/record/4669984

Eupronoe maculata Claus, 1879 Eupronoe maculata Claus, 1879: 28; Siegel-Causey, 1982: 272; Vinogradov et al ., 1996: 447 (key), 448, fig. 194; Gasca et al ., 2010: 933; Gasca et al ., 2012:126; Lavaniegos & Hereu, 2009: 147, 142 (table 1), 152 (Appendix 1); Lavaniegos, 2014: 5‒8 (passim), 4 (table 1). Material examined . 19M and 26F from 15 stations (Fig. 2). TALUD I. St. 6 (23°15’54”N, 107°31’12”W), December 12, 1989, 1F, BO, from surface to 1550 m (TD> 2000 m) (ICML-EMU-12762-A). TALUD III. St. 3B (22°36’36”N, 106°35’54”W), August 17, 1991, 4 F, I-K from surface to 275 m (TD ND) (ICML-EMU-12762-B); St. 19 (25°12’00”N, 109°07’00”W), August 20, 1991, 1M, 3F, I-K from surface to 410 m (TD 920 m) (ECO- CH-Z 10365); St. 19B (25°18’24”N, 109°18’36”W), August 20, 1991, 3M, 1F, I-K from surface to 600 m (TD 1890 m) (ECO-CH-Z 10366); St. 25A1 (25°51’00”N, 109°57’00”W), August 21, 1991, 4M, 9F, I-K from surface to about 200 m (TD 1280–1360 m) (ICML-EMU-12762-C); St. 25A2 (25°50’54”N, 109°56’54”W), August 21, 1991, 1M, I-K from surface to 230 m (TD 1250–1328 m) (ICML-EMU-12762-D). TALUD IV. St. 25 (24°54’N, 108°58’W), August 26, 2000, 2F, BS, from surface to 778‒800 m (ICML- EMU-12763-A); St. 36 (25°51’59”N, 110°11’00”W), August 27, 2000, 1F, MN, from surface to 1000 m (TD 2100 m) (ICML-EMU-12763-B). TALUD V. St. 29 (25°14’36”N, 109°24’15”W), December 17, 2000, 1 F, MN, 1290 m (TD 2040 m) (ICML-EMU-12764-A); St. 36 (25°54’30”N, 110°11’24”W), December 17, 2000, 1M, 2F, MN from surface to 1340 m (TD 1990 m) (ICML- EMU-12764-B). TALUD VI. St. 7 (22°21’39”N, 107°01’42”W), March 14, 2001, 1M, MN from surface to 1305 m (TD 2100 m) (ICML-EMU-12765-A); St. 29 (25°16’24”N, 109°24’54”W), March 16, 2001, 4M, MN from surface to 1440 m (TD 2080 m) (ICML-EMU-12765-B). TALUD VII. St. 15 (23°25’06”N, 107°46’54”W), June 7, 2001, 1M, 1F, MN, 1425 m (TD 2320 m) (ECO-CH-Z-10367); St. 22 (24°20’56”N, 108°55’42”W), June 7, 2001, 1M, MN, from surface to 1415 m (TD 2000 m) (ECO-CH-Z-10368); St. 36 (25°42’37”N, 110°04’35”W), June 9, 2001, 1F, MN, from surface to 1390 m (TD 2400 m) (ICML-EMU-12766). TALUD X St. 7 (27°53’09”N, 112°16’42”W), February 10, 2007, 2M, MN from surface to 900 m (TD 1191 m) (ICML-EMU-12767). Distribution . Cosmopolitan. In the eastern Pacific it has been recorded off the west coast of the Baja California Peninsula (Lavaniegos & Hereu 2009; Lavaniegos 2014, 2017), in the Gulf of California, off Jalisco and Colima, western Mexico, and off Ecuador (Brusca & Hendrickx 2005; García-Madrigal 2007; Gasca et al . 2012). Remarks . In the Gulf of California E. maculata has been reported between 29°02’N, 112°47’W and 23°15’N, 108°22’W as a common species (Siegel-Causey 1982). Our material was recorded from the central (northernmost record at 27°53’09”N) and southern Gulf, south to 22°21’39”N (Fig. 1). Its occurrence off Jalisco and Colima was observed when “El Niño” conditions were present in the area (Gasca et al . 2012), thus suggesting that it might be associated to warmer water than its congener E. minuta , at least in this region. Adult E. maculata reach a total length of 8‒12 mm. This species can be distinguished from E minuta by its possession of a pereopod I fourth segment narrower than the fifth, the carpal process of pereopod II not being massive, but tapering to a distal point, and the telson tip with slightly concave sides. : Published as part of Gasca, Rebeca & Hendrickx, Michel E., 2021, Pelagic amphipods (Crustacea: Amphipoda: Hyperiidea) in western Mexico. 2 Family Eupronoidae, pp. 419-430 in Zootaxa 4948 (3) on pages 421-422, DOI: 10.11646/zootaxa.4948.3.6, http://zenodo.org/record/4629183 : {"references": ["Claus, C. (1879) Die gatungen und Arten der Platyscelidae in systematischen Ubersicht. Arbeiten aus dem Zoologischen Instituten Wien, 2, 5 - 43 + 147 - 198.", "Siegel-Causey, D. (1982) Factors determining the distribution of hyperiid Amphipoda in the Gulf of California. Ph. D. Thesis, University of Arizona, Tucson, Arizona, 535 pp.", "Vinogradov, M. E., Volkov, A. F. & Semenova, T. N. (1996) Hyperiid amphipods (Amphipoda, Hyperiidea) of the world oceans. Oxonian Press Pvt. Ltd., New Delhi, 632 pp.", "Gasca, R., Suarez-Morales, E. & Franco-Gordo, C. (2010) New records of hyperiids (Amphipoda, Hyperiidea) from surface waters of the central Mexican Pacific. Crustaceana, 83 (8), 927 - 940. https: // doi. org / 10.1163 / 001121610 X 504298", "Gasca, R., Franco-Gordo, C., Suarez-Morales, E. & Godinez-Dominguez, E. (2012) Hyperiid amphipod community in the Eastern Tropical Pacific before, during, and after El Nino 1997 - 1998. Marine Ecology Progress Series, 455, 123 - 139. [http: // www. int-res. com / abstracts / meps / v 455 / p 123 - 139 /] https: // doi. org / 10.3354 / meps 09571", "Lavaniegos, B. E. & Hereu, C. (2009) Seasonal variation in hyperiid amphipod abundance and diversity and influence of mesoscale structures off Baja California. Marine Ecology Progress Series, 394, 137 - 152. https: // doi. org / 10.3354 / meps 08285", "Lavaniegos, B. E. (2014) Pelagic amphipod assemblage associated with subarctic water off the West Coast of the Baja California Peninsula. Journal of Marine Systems, 132, 1 - 12. https: // doi. org / 10.1016 / j. jmarsys. 2013.12.012", "Lavaniegos, B. E. (2017) Changes in composition of summer hyperiid amphipods from a subtropical region of the California Current during 2002 - 2008. Journal of Marine Systems, 165, 13 - 26. https: // doi. org / 10.1016 / j. jmarsys. 2016.09.001", "Brusca, R. C. & Hendrickx, M. E. (2005) Cap. 12. Crustacea 4. Lophogastrida, Mysida, Amphipoda Tanaidacea & Cumacea. In:", "Garcia-Madrigal, M. S. (2007) Annotated checklist of the amphipods (Peracarida: Amphipoda) from the tropical eastern Pacific. Contributions to the study of East Pacific Crustaceans, 4 (2), 63 - 195."]}