Streetsia porcella ( Claus, 1879 )

Gasca, Rebeca & Hendrickx, Michel E., 2022, Pelagic amphipods (Crustacea: Amphipoda: Hyperiidea) in western Mexico. 7 Superfamily Platysceloidea. Family Oxycephalidae, Zootaxa 5105 (2), pp. 219-236 : 229-230

Streetsia porcella ( Claus, 1879)

Oxycephalus porcellus Claus, 1879a: 194 (48).

Streetsia porcella .— Brusca, 1981: 13 (list), 33 (key), fig. 23d, l; Vinogradov et al., 1996: 511 (key), 516‒519, fig. 224; Gasca, 2009: 89 (tab. 1); Lavaniegos & Hereu, 2009: 152 (appendix); Gasca et al., 2012: 126 (tab. 1); Lavaniegos, 2014: 5 (tab. 1); Zeidler, 2016: 93‒96 (passim), 96 (key).

Streetsia intermedia Spandl, 1927: 188‒190 , figs. 20, 21 a‒l.

Streetsia nyctiphanes Fage, 1934: 1631 .

Material examined. 5M, 1F in four localities ( Fig. 5 ).

TALUD III. St. 19 (25°12’00”N, 109°07’00”W), August 20, 1991 , 2M, I-K, surface to 410 m (TD, 920 m) (ICML-EMU-12979-A); St. 19B (25°18’24”N, 109°18’36”W), August 20, 1991, 1M, I-K from surface to 600 m (TD, 1890 m) (ICML-EMU-12979-B). TALUD IV. St. 7 (22°00’22”N, 106°49’18”W), August 23, 2000 , 1M, 1F, MN from surface to 500 m (TD, 1970 m) (ECOSUR-10563); St. 15 (23°23’30”N, 107°47’48”W), August 24, 2000 , 1M, MN from surface to 1500 m (TD, 2350 m) (ICML-EMU-12980) .

Distribution. Epipelagic in tropical and subtropical waters of all oceans; Mediterranean Sea ( Fage, 1960). In the eastern Pacific present in the Mexican portion of the California Current ( Lavaniegos & Hereu 2009) and the SE Gulf of California (this study).

Remarks. The head of this species is shorter than in the other species of the genus and the body is more robust.

Found mostly between 0 and 300 m depth ( Vinogradov et al. 1996). Not recorded previously by Siegel-Causey (1982) in the Gulf of California and not listed by García Madrigal (2007) for the tropical eastern Pacific, S. porcella had been consistently collected in the Mexican portion of the California Current ( Lavaniegos & Hereu 2009, Lavaniegos 2014). During our survey it was recorded in four localities in the Gulf of California ( Fig. 5 ).

Figures

FIGURE 5. Localities where Streetsia mindanaonis, S. porcella, and S. steenstrupi were collected during this survey.