Hyperioides sibaginis (Stebbing, 1888)

Hyperia sibaginis Stebbing, 1888: 1379, plate 165.

Hyperioides sibaginis — 1379, plate 165; Siegel-Causey, 1982: 161 (key), 162; Vinogradov et al., 1996: 377 (key), 380, fig. 161; Zeidler, 2004: 32 (key), 34; Brusca & Hendrickx, 2005: 150 (list); García Madrigal, 2007: 149 (list); Valencia & Giraldo, 2009: 266–269 (passim), 268 (tab. 1), fig. 2; 2011: 1491‒1497 (passim), 1492 (tab. 1), 1496 (tab. 3), fig. 7c; Lavaniegos & Hereu, 2009: 142 (tab. 1), 143, 146 (tab. 2), 151 (Appendix 1); Gómez-Gutiérrez et al., 2014: 1019 (Table 3).

Material examined. 154M, 182F in 24 localities (Fig. 3). TALUD I, St. 6 (23°15’54”N, 107°31’12”W), December 12, 1989, 2F, BO, from surface to ca. 200 m (TD, 1550 m) (ECO-CH-Z-10385). TALUD III. St. 3B (22°36’36”N, 106°35’54”W), August 17, 1991, 1M, 9F, I-K, from surface to 275 m (TD, 1585 m) (ICML-EMU-12779A); St. 6 (23º17’54”N, 107º30’18”W), August 18, 1991, 1M, AD from surface to 996‒1148 (ECO-CH-Z-10386); St. 10B (23°43’24”N, 107°39’06”W), August 18, 1991, 12M, 8F, I-K, from surface to 630 m (TD, ca. 900 m) (ICML-EMU- 12779B); St. 18 (ca. 25°N, 109°W), August 19, 1991, 1M, I-K (depth not registered) (ICML-EMU-12779C); St. 19 (25°12’00”N, 109°07’00”W), August 20, 1991, 28M, 48F, I-K, surface to 410 m (TD, 920 m) (ICML-EMU- 12779D); St. 19B (25°18’24”N, 109°18’36”W), August 20, 1991, 2M, 2F, I-K, from surface to 600 m (TD, 1890 m) (ICML-EMU-12780A); St. 25A1 (25°51’00”N, 109°57’00”W), August 21, 1991, 27M, 18F, I-K, from surface to 200 m (TD, 1280‒1360 m) (ICML-EMU-12780B); St. 25A2 (25°50’54”N, 109°56’54”W), August 21, 1991, 43M, 69F, I-K, from surface to 230 m (TD, 1250‒1328 m) (ICML-EMU-12780C). TALUD IV. St. 15 (23°23’30”N, 107°47’48”W), August 24, 2000, 1F, MN, from surface to 1500 m (TD, 2350 m) (ICML-EMU-12781A); St. 25A2 (25°50’54”N, 109°56’54”W), August 21, 1991, 5M, 7F, I-K, from surface to 230 m (TD, not measured) (ICML-EMU-12781B). TALUD VI. St. 7 (22°21’39”N, 107°01’42”W), March 14, 2001, 5M, MN, from surface to 1305 m (TD, 2100 m) (ICML-EMU-12782A); St. 29 (25°16’24”N, 109°24’54”W), March 16, 2001, 6M, 17F, MN, from surface to 1440 m (TD, 2080 m) (ICML-EMU-12782B); St. 36(2) (25°53’15”N, 110°10’06”W), March 17, 2001, 2M, MN, from surface to 1360 m (TD, 2000 m) (ICML-EMU-12782C). TALUD VII, St. 15B (23°25’N, 107°49’W), June 7, 2001, 1M, 1F, MN, from surface to 1425 m (TD, 2320 m) (ICML-EMU-12783A); St. 29 (25°17’31”N, 109°24’30”W), June 8, 2001, 6M, MN, from surface to 1335 m (TD, 2080 m) (ICML-EMU-12783B). TALUD X. St. 7 (27°53’09”N, 112°16’42”W), February 10, 2007, 1M, MN, from surface to 900 m (TD, 1191 m) (ICML-EMU-12784A); St. 11 (27°34’16”N, 111°40’W), February 11, 2007, 3M, 1F, MN, from surface to 1215 m (TD, 1801 m) (ICML-EMU-12784B); St. 23 (27°00’30”N, 111°12’00”W), February 14, 2007, 1M, MN, from surface to ca. 1250 m (TD, 1770 m) (ICML-EMU-12784C). TALUD XI. St. 6A (16°58’00”N, 100°57’00”W), June 7, 2007, 6M, MN, from surface to 1400 m (TD, 1960 m) (ICML-EMU-12785A). TALUD XI. St. 19B (17°56’00”N, 103°10’00”W), June 9, 2007, 13M, MN, from surface to 1490 m (TD, 1750 m) (ECO-CH-Z-10383). TALUD XII. St. 4 (16°59’39”N, 100°58’07”W), March 28, 2008, 2M, MN, from surface to 1200 m (TD, 1995 m) (ICML-EMU- 12785B); St. 28B (18°56’00”N, 104°59’57”W), April 2, 2008, 1M, MN, from surface to 1425 m (TD, 2041 m) (ICML-EMU-12785C) .

Distribution. Pacific Ocean. In the eastern Pacific from California, USA, and the Gulf of California, Mexico, to Panama (Brusca & Hendrickx 2005, García Madrigal 2007).

Remarks. Siegel-Causey (1992) reported H. sibaginis as an uncommon species in the southern Gulf of California, with a distribution pattern similar to H. longipes . According to García Madrigal (2007) this species occurs between 0‒ 200 m. It was one of the two most abundant species in this survey.