Lysmata vittata ( Stimpson, 1860 )

Carvalho-Batista, Rafael de Carvalho Santos Douglas Fernandes Rodrigues Alves Abner, 2021, Shrimps of genus Lysmata Risso, 1816 (Caridea: Lysmatidae) from Queimada Grande Island region, southeastern Brazil, Nauplius (e 2021032) 29, pp. 1-13 : 8

Lysmata vittata ( Stimpson, 1860)

Hippolysmata vittata Stimpson, 1860: 26 .

Nauticaris unirecedens Spence Bate, 1888: 608 , pl. 110, fig. 1

Hippolysmata vittata var. subtilis Thallwitz, 1891: 22 .

Lysmata vittata : Bruce, 1990: 601, figs. 23–28; Soledade et al., 2013: 67; Alves et al., 2018: figs. 1B, 3; Terossi et al., 2018: 83 .

Hippolysmata durbanensis Stebbing, 1921: 20 , pl. 5.

Lysmata rauli Laubenheimer and Rhyne, 2010: 299 , figs. 1–3; Soledade et al. 2013: 67, fig. 2C.

Material examined. 1 non-ov. specimen (7.02 mm CL), MZUSP 41124 , Queimada Grande Island , Peruíbe, São Paulo State, Brazil, collector Marques, C.H.A. (artisanal fisherman), 01.viii.2018 .

First record for São Paulo. São Vicent Estuary

( Soledade et al., 2013).

Distribution. Indo-West Pacific:from Mozambique to Hong Kong; Philippines, Japan, Russia, Australia, and New Zealand. Mediterraean Sea. Western Atlantic: Brazil (Sergipe, Bahia, Rio de Janeiro, São Paulo) ( Barnard, 1955; Chace, 1997; Ahyong, 2010; Laubenheimer and Rhyne, 2010; Marin et al., 2012; Soledade et al., 2013; Abdelsalam, 2018; Alves et al., 2018; Pachelle et al., 2018; Terossi et al., 2018; Present study).

Remarks. It is the first non-native species of Lysmata reported on the Brazilian coast ( Soledade et al., 2013), followed by L. lipkei (see Pachelle et al., 2016). Recently recognized as a senior synonym of L. rauli (see Laubenheimer and Rhyne, 2010) and due to its wide distribution and diverse color patterns may be considered a species complex ( Marin et al. 2012; Soledade et al., 2013; Anker and De Grave 2016; Pachelle et al., 2018; 2020). The analyzed specimen was very damaged, with several broken appendages. However, despite the damage the identification by morphological characteristics was possible, since the rostrum and some appendages were still intact. Thus, it was possible to verify: [1] the presence of a sharp tooth on the pterygostomial margin; [2] seven dorsal and three ventral teeth on the rostrum; [3] a single short free article in the accessory ramus of the antennular flagellum; [4] stylocerite longer, overreaching distal margin of cornea; [5] intraorbital process of carapace longer than wide in lateral view; and [6] first pereopod carpus short, about three times as long as wide in lateral view. These characteristics can be used as morphological evidence, allowing the analyzed specimen to be identified according to the key proposed by Pachelle et al. (2020). The proposition of L. vittata as a senior synonym of L. rauli may be carefully checked using more extensive material and through morphological and molecular analysis because of the possibility of L. vittata being a species complex ( Marin et al., 2012; Soledade et al., 2013; Terossi et al., 2018; Pachelle et al., 2018; 2020).