Paralycaea hoylei Stebbing, 1888

Gasca, Rebeca, Suárez-Morales, Eduardo & Hendrickx, Michel E., 2021, Hyperiids (Amphipoda, Hyperiidea) collected during the TALUD cruises in western Mexico. 5. Family Amphithyridae, with the description of a new species of Amphithyropsis Zeidler, Zootaxa 5039 (4), pp. 479-494 : 485

Paralycaea hoylei Stebbing, 1888

Paralycaea hoylei Stebbing, 1888: 1570 ; Siegel-Causey, 1982: 283; Vinogradov et al., 1996: 466 (in synonymy of P. gracilis ); Gasca, 2009: 88 (tab. 1); Gasca et al., 2012: 126 (passim) (tab. 1); Zeidler, 2016: 36, 39 (key).

Material examined. 1M from one station ( Fig. 3 ). TALUD III, St. 25A2 (25°50’54”N, 109°56’54”W), August 21, 1991, 1M, I-K from surface to 230 m (TD, ca. 1400 m) (ICML-EMU-12888) .

Distribution. Atlantic, off Africa (type locality), in surface waters ( Stebbing, 1888). Central and southern Gulf of California ( Siegel-Causey 1982, present study). Registered as “uncommon” in tropical Australian waters ( Zeidler 1998). Registered as one of the most common species along the west coast of Mexico under the influence of El Niño ( Gasca et al. 2012). Its true distribution remains largely unknown because of the taxonomic problems related to this species.

Remarks. Paralycaea hoylei is now included in the family Amphithyridae ( Zeidler 2016) . Vinogradov et al. (1996) recognized only one valid species of Paralycaea , P. gracilis , thus considering both P. hoylei and P. newtoniana Bovallius, 1887 as junior synonyms of Stebbing’ species. Zeidler (1998: 85), however, established the validity of P. hoylei based on material collected in Australian waters. The status of P. newtoniana was further discussed by Zeidler (2016) (see comments in discussion).

Figures

FIGURE 3. Localities where Paralycaea gracilis and P. hoylei were captured during this survey.