Platorchestiinae subfam. nov. (Amphipoda, Senticaudata, Talitridae) with the description of three new genera and four new species Author Lowry, J. K. Author Myers, A. A. 0000-0003-3256-2123 School of Biological, Earth and Environmental Sciences, University College Cork, Cork Enterprise Centre, Distillery Fields, North Mall, Cork, Ireland. bavayia @ gmail. com; https: // orcid. org / 0000 - 0003 - 3256 - 2123 bavayia@gmail.com text Zootaxa 2022 2022-02-17 5100 1 1 53 journal article 20608 10.11646/zootaxa.5100.1.1 cabdbbb1-1226-4c2e-b90b-fae0742b5091 1175-5326 6127681 F42DAC62-0E30-442E-A375-87FC02B2CC99 Cocorchestia margaritae ( Stephensen, 1948 ) comb. nov. ( Fig. 4 ) Talorchestia margaritae Stephensen, 1948: 7 , figs 1, 2, Table 2.— Ruffo, 1950: 50 .— Galan, 1984: 137 (PhD thesis).— Könemann, 1997:10 .— Barrios & Lemus, 2000: 139 .— Martin & Diaz, 2003: 339 .— Ruffo & Krapp-Schickel, 2005: 37 .— Martin et al ., 2013: 1716 . Non-Taxonomic Citations Talorchestia margaritae .— Blanco, 1980: 44 pp. (biology, thesis).— Venables, 1981a: 89 (physiology).— Venables, 1981b: 182 (growth).— Venables, 1981c: 271 (population dynamics).— Correa, 1985: 11 (caloric content).— Sánchez, 1985: 51 pp (biology, thesis).— Dias & Sprung, 2003: 1137 (population dynamics).— Huck, Martin & Miloslavich, 2007: 3 , 4, fig. 1, 5, table 1, figs 2, 3 (protein content).— López et al ., 2010: 841 , 844, table 1, 846, table 2, (ecology).— Wildish et al ., 2011: 1249 , table 3. FIGURE 4. Cocorchestia margaritae ( Stephensen, 1948 ) , after Stephensen, 1948 . Types. Holotype , male, 12 mm . Paratypes , 2 males , 1 female , ZMUC . Type locality. Patio of Hotel Central , Porlamar , Margarita Island , Venezuela , under stones in the patio about 60 m from the sandy sea shore . Ecological type . Beach-hoppers. Habitat. Living at the back of sandy beaches. Diagnosis (male). Based on Stephensen (1948) . Gnathopod 2 propodus palm without proximal sinus, with large distal sinus; with proximal spine defining palm. Pereopod 7 not incrassate. Telson with 7–8 robust setae per lobe. Remarks. Platorchestia margaritae differs from the other species in the genus in having a large spine defining the proximal margin of the palm of male gnathopod 2. Venables (1981 a –c) describes aspects of the physiology and ecology of the species. Martin & Diaz (2003) reported it as common on sandy beaches in Anzoátegui , Nueva Esparta and Sucre , Venezuela . Distribution. Venezuela . Margarita Island ( Stephensen 1948 ): Cumaná ( Venables 1981 a –c).