Gnathophyllum americanum Guérin-Méneville, 1855

Tavares, Marcos Domingos Siqueira, Carvalho, Leina & Mendonça Jr., Joel Braga de, 2017, Towards a review of the decapod crustacea from the remote oceanic archipelago of Trindade and Martin Vaz, south Atlantic Ocean: new records and notes on ecology and zoogeography, Papéis Avulsos de Zoologia (São Paulo) 57 (14), pp. 157-176 : 163-164

publication ID

https://doi.org/ 10.11606/0031-1049.2017.57.14

persistent identifier

https://treatment.plazi.org/id/03AB056D-FFFB-FFAC-FDB0-FBB0FC489499

treatment provided by

Carolina

scientific name

Gnathophyllum americanum Guérin-Méneville, 1855
status

 

Gnathophyllum americanum Guérin-Méneville, 1855

( Figure 3 View FIGURE 3 A-B)

Material examined: Brazil: Trindade Island , Enseada Orelhas, 20°29’40.2”S / 29°20’32.9”W, depth: 14 m, J.B. Mendonça coll., 06.vii.2013: 1 male ( MZUSP 31190 View Materials ) GoogleMaps . Ibidem , depth: 15.4 m, J.B. Mendonça coll., 24.x.2014: 2 males ( MZUSP 33425 View Materials ) . Trindade Island , Enseada Orelhas, 20°29’40.2”S / 29°20’32.9”W, depth: 12 m, J.B. Mendonça coll., 01.x.2014: 1 male ( MZUSP 33426 View Materials ) GoogleMaps . Ibidem , depth: 12.1 m, J.B. Mendonça coll., 18.iv.2014: 1 male ( MZUSP 33428 View Materials ) . Trindade Island , Farol (Enseada dos Portugueses), 20°29’52.3”S / 29°19’15.6”W, depth: 12 m, J.B. Mendonça coll., 15.vii.2013: 1 male ( MZUSP 31184 View Materials ) GoogleMaps . Trindade Island , Praia do Andrada, 20°30’71.8”S/ 29°18’24.7”W, depth: 9.9 m, J.B. Mendonça coll., 17.vii.2013: 1 ovigerous female ( MZUSP 31187 View Materials ) . Trindade Island , Ilha da Racha, 20°30’26.5”S / 29°20’48.0”W, depth: 30.3 m, J.B. Mendonça coll., 12.vii.2012: 1 male ( MZUSP 31178 View Materials ) GoogleMaps . Trindade Island , Ponta da Calheta, 20°30’18.72”S / 29°18’31.67”W, depth: 15.6 m, J.B. Mendonça coll., 30.iv.2014: 5 males ( MZUSP 33422 View Materials ) GoogleMaps , 1 male ( MZUSP 33419 View Materials ) GoogleMaps . Ibidem , depth: 16.3 m, J.B. Mendonça coll., 20.v.2014: 1 male, 1 ovigerous female ( MZUSP 33421 View Materials ) . Ibidem , depth: 16.6 m, J.B. Mendonça coll., 08.v.2014: 1 ovigerous female ( MZUSP 33418 View Materials ) . Ibidem , depth: 16 m, J.B. Mendonça coll., 11.xi.2014: 2 males ( MZUSP 33427 View Materials ) , 2 ovigerous females ( MZUSP 33423 View Materials ) . Ibidem , depth: 16.6 m, J.B. Mendonça coll., 08.v.2014: 1 male, 1 ovigerous female ( MZUSP 33420 View Materials ) . Ibidem , depth: 17 m, J.B. Mendonça coll., 20.x.2014: 1 male ( MZUSP 33429 View Materials ) . Trindade Island , Praia do Lixo, 20°31’29.8”S / 29°19’43.9”W, depth: 13.7 m, J.B. Mendonça coll., 25.10.2014: 2 males ( MZUSP 33424 View Materials ) GoogleMaps . Trindade Island , Enseada da Cachoeira (Farrilhões), 20°31’22.4”S / 29°19’52.0”W, depth: 11.9 m, J.B. Mendonça coll., 16.vi.2012: 1 juvenile ( MZUSP 31158 View Materials ) GoogleMaps . Trindade Island , Enseada da Cachoeira (Farrilhões), 20°31’29.8”S / 29°19’52.0”W, depth: 17 m, J.B. Mendonça coll., 23.vii.2015: 1 male ( MZUSP 33436 View Materials ) GoogleMaps . Martin Vaz Island , 20°30’45.7”S / 29°18’21.9”W, depth: 13 m, J.B. Mendonça coll., 23.vii.2013: 1 ovigerous female ( MZUSP 31169 View Materials ) GoogleMaps . Size of largest male: cl 3.5 mm ( MZUSP 33419 View Materials ) ; largest female: cl 5 mm ( MZUSP 33418 View Materials ) .

Comparative material examined: Chile: Isla de Pascua (Easter Island), 15.iii.2016, leg. G. Guzmán: 2 males, 2 ovigerous females ( MZUSP 34760 View Materials ). Size of largest male: cl 4 mm; largest female: cl 7 mm .

Type locality: Cuba .

Distribution: Circumtropical. Western Atlantic: Bermuda, Gulf of Mexico, West Indies, Brazil (Rio Grande do Norte, Trindade Island – present study) ( Manning, 1963; Chace, 1972; Santos, 1994; Ramos- Porto & Coelho, 1998; Álvarez et al., 1999; Felder et al., 2009). Central Atlantic: Ascension and St. Helena Island ( Brown, 2014; De Grave et al., 2014). Eastern Atlantic: Canary Islands, Madeira, São Tomé ( Holthuis, 1949; Araújo, 2002; Wirtz, 2003, 2004). Indo-West Pacific: from east Africa and India to Japan, South China Sea, Papua New Guinea, Australia, Tuamotu and French Polynesia. East Pacific: Eastern Island ( Fransen, 1987 and this report) ( Holthuis, 1949; Fransen, 1987, 1994; Bruce, 1989; Li, 1997; De Grave, 2000; Ahyong, 2003; Prakash et al., 2015)

Ecological notes: Gnathophyllum americanum is either free-living (reefs, under stones, coral rubble, seagrass flats, seaweed-covered rocks) or loosely associated with corals (e.g., Montipora, Porites ) and echinoids (e.g., Diadema , Echinometra , Lytechinus ) in intertidal rocky pools or subtidally down to 50 meters ( Holthuis, 1949; Manning, 1963; Chace, 1972; Bruce, 1989; Fransen, 1994; Álvarez et al., 1999; De Grave, 2000; Wirtz, 2003; De Grave et al., 2014; Prakash et al., 2015).

Remarks: In Brazil, G. americanum has been recorded from Rio Grande do Norte (Extremoz, north of Natal) by Santos (1994) and most probably also occurs in Bahia (Praia de Itapoã) based on a record of “ Gnathophyllum sp.” by Coelho, & Ramos (1972:145). Gnathophyllum americanum is recorded herein from TMV, between 9.9 and 30.3 m. In Trindade G. americanum was found associated with sea anemones ( Telmatactis sp.), in the vicinity of Diadema antillarum ( Fig. 4D View FIGURE 4 ) or free-living in crevices and under stones, either as single individuals or in small groups of up to four individuals, sometimes found sharing the same crevice with T. amboinensis .