Parandania boecki ( Stebbing, 1888 )

Souza-Filho, Jesser F., Guedes-Silva, Elkênita & Andrade, Luiz F., 2024, Four new species and two new records of deep-sea Amphipoda (Crustacea: Peracarida) from Potiguar Basin, north-eastern Brazil, Journal of Natural History 58 (41 - 44), pp. 1615-1655 : 1641-1643

Parandania boecki ( Stebbing, 1888)

( Figure 17 )

Andania boecki Stebbing, 1888: 735 , pl. XXXVI.

Parandania boecki – Stebbing, 1906: 95. – De Broyer et al., 2007: 204 (see for an extensive synonym list).

Material examined

1 female, 14.8 mm, Potiguar Basin , MT 83 , initial trawl coordinates 4.4405°S, 36.4308°W, final trawl coordinates 4.4905°S, 36.4026°W, Rio Grande do Norte state, Brazil, initial depth 1950 m, final depth 1880 m, 4 May 2011, R / V Seward Johnson col. ( MOUFPE 20191 ) .

Type locality

Pernambuco state, north-eastern Brazil, 8.6167°S, 34.4667°W .

Remarks

Parandania boecki was originally described based on a single specimen with material collected from the Brazilian state of Pernambuco at a depth of 1234 m during the Challenger Expedition ( Stebbing 1888). Therefore, in this study the bathymetric range of the species is expanded from 1234 to 1880– 1950 m deep. Over the years, it was found that the species has a very broad geographic distribution, with a clear predominance in the southern hemisphere ( De Broyer et al. 2007).

The female individual collected in this study agrees with the original description of Stebbing (1888), as well as other studies that involved this species ( Schellenberg 1926; J.L. Barnard 1961; Moore 1992), in the following characters: antenna 1 ( Figure 17a ) articles short; flagellum article 1 broad, elongate, bearing dense row of callynophores; accessory flagellum curved and as long as first article of the primary flagellum; maxilla 2 ( Figure 17b ) inner plate densely setose and much larger than outer; gnathopods 1–2 ( Figure 17c–d ) propodus tapering distally, palm strongly acute; uropods 1–3 ( Figure 17e–g ) similar, peduncle much longer than rami; telson ( Figure 17h ) short and subtriangular. This is the second record of the species from Brazilian waters.

Type locality

Pernambuco state, north-eastern Brazil, 8.6167°S, 34.4667°W .

Distribution and bathymetry

Pan-oceanic, from shallow waters up to 3700 m deep ( De Broyer et al. 2007; Serejo and Siqueira 2018). Slope of Rio Grande do Norte state (between 4.4405°S, 36.4308°W and 4.4905°S, 36.4026°W), Brazil, between 1880 and 1950 m deep (current study) ( Figure 23 ).

Figures

Figure 17. Parandania boecki (Stebbing, 1888), female, 14.8 mm (MOUFPE 20191). A, antenna 1; B, maxilla 2; C, gnathopod 1; D, gnathopod 2; E, uropod 1; F, uropod 2; G, uropod 3; H, telson. Scale bars: A, C–G = 1 mm; B = 0.5 mm; H = 0.2 mm.

Figure 23. Map showing local distribution of the species recorded in the present paper from Potiguar Basin, Rio Grande do Norte state, Brazil.