New records of the striped cleaner shrimp Lysmata grabhami (Gordon, 1935) from Brazil, Southwestern Atlantic

Abstract

New records for Lysmata grabhami (Gordon, 1935) in Brazilian waters are presented. Four adult individuals from coastal waters off the city of Vitória, Espírito Santo coast and one adult from Trindade Island were collected during scuba diving in depths between 20-40 meters. These two records represent the southernmost published finding of this species in the Atlantic and the record for Vitória, Espirito Santo is the first from Brazilian coastal waters.

Lysmata arvoredensisnov. sp. a new species of shrimp from the south coast of Brazil with a key to species ofLysmata(Caridea: Lysmatidae) recorded in the southwestern Atlantic

“…Remarks. This new species increases to 46 the total number of species belonging to the genus Lysmata described worldwide ( De Grave & Fransen, 2011 ; Rhyne, Calado & Dos Santos, 2012 ; Soledade et al, 2013 ; Gan & Li, 2016 ; Prakash & Baeza, 2017 ; De Grave & Anker, 2018 ) and increases to nine the number of species recorded in Brazil ( Chace, 1972 ; Coelho et al, 2006 ; Rhyne & Lin, 2006 ; Soledade et al, 2013 ; Kassuga, Diele & Hostim-Silva, 2015 ). L. arvoredensis sp.…”

“…nov. differs considerably both in terms of morphology and coloration from species belonging to the Cleaner clade. All cleaner shrimps exhibit conspicuous color patterns; L. debelius Bruce, 1982 has a deep scarlet red coloration in the entire body ( Bruce, 1982 ) while L. amboinensis and L. grabhami are yellow and possess dorsal longitudinal red and white bands ( Hayashi, 1975 ; Chace, 1997 ; Baeza, 2010 ; Kassuga, Diele & Hostim-Silva, 2015 ). The color pattern of the new species is rather dull in comparison.…”

“…These specimens were collected and identified by Thais P. Macedo and are deposited at the Zoological Collection of the UFSC (LCP/UFSC- 113). The color pattern exhibited by other species present in Brazil was taken from Gordon (1935) , Hayashi (1975) , D’Acoz (2000) , Rhyne & Lin (2006) , Coelho et al (2006) , Baeza (2010) , Okuno & Fiedler (2010) , Fiedler et al (2010) , Laubenheimer & Rhyne (2010) , Rhyne, Calado & Dos Santos (2012) , Soledade et al (2013) , Barros-Alves et al (2015) , Giraldes & Freire (2015) , Kassuga, Diele & Hostim-Silva (2015) , and Terossi et al (2018) . It must be highlighted that the color pattern of most species likely becomes less intense when specimens are subject to high intensity illumination ( Wear & Holthuis, 1977 ; Calvo et al, 2016 ).…”

“…Furthermore, a series of studies focusing on the phylogeny of the genus coupled with behavioral experiments have improved our understanding regarding the evolution of hermaphroditism in caridean shrimps ( Baeza, 2009 , 2010 , 2013 ; Fiedler et al, 2010 ; Baeza & Fuentes, 2013 ; De Grave et al, 2014 ). Currently, a total of 45 species are recognized worldwide ( De Grave & Fransen, 2011 ; Rhyne, Calado & Dos Santos, 2012 ; Soledade et al, 2013 ; Gan & Li, 2016 ; Prakash & Baeza, 2017 ; De Grave & Anker, 2018 ) and eight of them have been recorded in Brazil: L. ankeri Rhyne & Lin, 2006 and L. bahia Rhyne & Lin, 2006 previously misidentified as L. wurdemanni (Gibbes, 1850) ( Rhyne & Lin, 2006 ); L. grabhami ( Gordon, 1935 ) previously misidentified as L. amboinensis (de Man, 1888) ( Kassuga, Diele & Hostim-Silva, 2015 ); L. moorei (Rathbun, 1901) ( Coelho et al, 2006 ; Coelho Filho, 2006 ); L. jundalini Rhyne, Calado & Dos Santos, 2012 previously misidentified as L. cf. intermedia (Kingsley, 1878) ( Rhyne, Calado & Dos Santos, 2012 ; Terossi et al, 2018 ); the Indo-Pacific L. vittata (Stimpson, 1860) improperly described as a new species (i.e., L. rauli Laubenheimer & Rhyne, 2010 ) ( Laubenheimer & Rhyne, 2010 ; Soledade et al, 2013 ); Lysmata cf.…”

Atlantic expansion of the African caridean shrimp Lysmata uncicornis Holthuis & Maurin, 1952 (Caridea: Lysmatidae)

“…In L. stenolepis the rostrum bears only one small ventral tooth, while in L. uncicornis there are a variable number of ventral teeth (1-3); these species also differ in the proportions of their pereiopods and the armature of the dactylus of their third to fifth pereiopods (Crosnier and Forest 1973;Fransen 1991). The differences to L. grabhami, namely on live specimens, are too conspicuous, as this species is yellow with a continuous middorsal white stripe from the tip of the rostrum to the end of the telson and, at both sides of this one, present a dorsal longitudinal red band (see Kassuga et al 2015). Giraldes et al (2018) mentioned that the stylocerite of L. uncicornis exhibits a series of denticules in its outer margin, while that of L. arvoredensis exhibited none.…”