Laleonectes vocans (A. Milne-Edwards, 1878 )

In, First Published, 2022, Brachyuran crabs (Crustacea, Decapoda) from the remote oceanic Archipelago Trindade and Martin Vaz, South Atlantic Ocean, Zootaxa 5146, pp. 1-129 : 54-55

publication ID

https://doi.org/ 10.11646/zootaxa.5146.1.1

publication LSID

lsid:zoobank.org:pub:52C3E5E3-80B6-49DB-BC9C-194560D491F7

DOI

https://doi.org/10.5281/zenodo.7626349

persistent identifier

https://treatment.plazi.org/id/03E3878A-A84D-FF90-04F4-8AD5FE81F894

treatment provided by

Plazi

scientific name

Laleonectes vocans (A. Milne-Edwards, 1878 )
status

 

Laleonectes vocans (A. Milne-Edwards, 1878) View in CoL View at ENA

( Fig. 28A–D View FIGURE 28 )

Neptunus vocans A. Milne-Edwards, 1878: 225 View in CoL .

Trindade specimens. 1 male ( MZUSP 40172 View Materials ), Brazil, off Espírito Santo, Trindade Island , Enseada dos Portugueses, SECON, 20°30’20.9”S, 29°18’43.7”W, J.B. Mendonça coll., 29.iv.2014, 0.9 m GoogleMaps . 1 male ( MZUSP 40174 View Materials ), ibidem, Enseada dos Portugueses , 20°30’17.7”S, 29°18’56.7”W, J.B. Mendonça coll., 18.iv.2014, 10.2 m GoogleMaps . 1 male ( MZUSP 40179 View Materials ), ibidem, Ponta da Calheta , 20°30’16.59”S, 29°18’30.11”W, J.B. Mendonça coll., 30.i.2019, 15.1 m GoogleMaps . 1 male ( MZUSP 39659 View Materials ), ibidem, 20°30’18.72”S, 29°18’31.6”W, J.B. Mendonça coll., 25.vii.2018, 15.6 m GoogleMaps . 1 juvenile ( MZUSP 41418 View Materials ), ibidem, J.B. Mendonça coll., 20.vii.2014, 16.3 m . 1 juvenile ( MZUSP 41469 View Materials ), R/V “Marion Dufresne”, TAAF MD55/Brésil Expedition, Ponta da Calheta , stn 35 DC59, 20°30.37’S, 29°18.55’W, 22.v.1987, 60 m GoogleMaps . 1 male ( MZUSP 33836 View Materials ), ibidem, Ilha da Racha , 20°30’26.5”S, 29°20’48”W, J.B. Mendonça coll., 3.vi.2015, 23 m GoogleMaps . 1 juvenile ( MZUSP 39620 View Materials ), ibidem, 30.vii.2018, 24.8 m . 1 juvenile female ( MZUSP 40175 View Materials ), Enseada dos Portugueses , SECON, 20°30’20.9’S, 29°18’43.7”W, J.B. Mendonça coll., 29.iv.2014, 9.9 m GoogleMaps . 1 juvenile female ( MZUSP 40980 View Materials ), ibidem, SECOM/ECIT, J.B. Mendonça coll., 14.v.2014, 10 m . 1 female ( MZUSP 40170 View Materials ), ibidem, Enseada das Orelhas , 20°29’40.2”S, 29°20’32.9”W, J.B. Mendonça coll. 21.vii.2015, 15 m GoogleMaps . 1 female ( MZUSP 40180 View Materials ), ibidem, Ponta Norte , 20°29’18.7”S, 29°20’18.3”W, J.B. Mendonça coll., 23.vi.2016, 11.3 m GoogleMaps . 1 juvenile male ( MZUSP 40171 View Materials ), ibidem, Praia das Cabritas , 20°29’41.38”S, 29°19’39.99”W, J.B. Mendonça coll., 25.vi.2015, 12 m GoogleMaps . 1 juvenile ( MZUSP 41463 View Materials ), R/V “Marion Dufresne”, TAAF MD55/Brésil Expedition, off Trindade Island , stn 36 DC61, 20°29’S, 29°18’W, 22.v.1987, 63 m GoogleMaps .

Size of largest male: cl 7.2 mm, cw 14.9 mm; female: cl 10.2 mm, cw 20 mm.

Comparative material examined. Laleonectes vocans : Cuba: 1 female ( USNM 19867 About USNM ), off Havana, R/V “ Albatross ”, stn 2330, 23°10’48”N, 82°19’15”W, 17.i. 1885, 221 m. Central Atlantic : 1 female ( USNM 190729 About USNM ) GoogleMaps , Ascension Island, Long Beach, R.B. Manning coll., 23.i.1977 . Brazil: Espírito Santo: 1 female, 2 juveniles ( MZUSP 41459 View Materials ), Vitória – Trindade Seamount Chain, R /V “Marion Dufresne” , TAAF MD55/ Brésil Expedition, Dogaressa Bank , stn 24 DC42, 20°54.67’S, 34°01.35’W, 17.v.1987, 60 m. GoogleMaps 1 male, 1 juvenile female ( MZUSP 41473 View Materials ), ibidem, Dogaressa Bank, stn 25 DC43, 20°51’S, 33°45’W, 17.v.1987, 63 m. GoogleMaps 1 male, 1 juvenile ( MZUSP 21202 View Materials ), ibidem, Montague Bank, stn 14 DC27, 20°25’S, 36°42’W, 14.v.1987, 81 m. GoogleMaps 1 male ( MZUSP 41462 View Materials ), H/V “ Antares ”, REVIZEE/Central Expedition, Montague Bank, stn 24C, 20°21’03”S, 36°38’14”W, 7.xi.1997, 62 m. GoogleMaps 1 juvenile ( MZUSP 21203 View Materials ), Vitória–Trindade Seamount Chain, R/V “Marion Dufresne” GoogleMaps , TAAF MD55/ Brésil Expedition, Vitória Bank , stn 13 DC26, 20°21’S, 36°59’W, 14.v.1987, calcareous sand with shell and algal fragments, 97.5 m. GoogleMaps 1 juvenile female ( MZUSP 41475 View Materials ), ibidem, Vitória Bank, stn 9 DC22, 20°32.39’S, 38°10.49’W, 13.v.1987, 52 m. GoogleMaps 1 male ( MZUSP 21205 View Materials ), ibidem, stn 10 DC24, 20°41’S, 37°49’W, 13.v.1987, 48 m. GoogleMaps 1 female, 2 juveniles ( MZUSP 41461 View Materials ), ibidem, Davis Bank, stn 23 DC41, 20°38.50’S, 34°42.93’W, 17.v.1987, sand and rocks, 58– 70 m. GoogleMaps 1 juvenile ( MZUSP 41465), ibidem, Davis Bank , stn 23 DC40, 20°39’S, 34°41’W, 15.v.1987, sandy shell, 60 m. GoogleMaps 1 juvenile ( MZUSP 41467 View Materials ), ibidem, Jaseur Bank , stn 21 DC35, 20°42’S, 35°22’W, 16.v.1987, calcareous sand, 82 m. GoogleMaps 2 juveniles ( MZUSP 41471 View Materials ), ibidem, Jaseur Bank , stn 20 DC34, 20°28’S, 35°54’W, 15.v.1987, 54 m. GoogleMaps 1 female ( MZUSP 41474 View Materials ) GoogleMaps , ibidem, Jaseur Bank , stn 17 DC30, 20°26.72’S, 36°17.30’W, 15.v.1987, calcareous algae and sand, 60 m. 1 male, 1 female ( MZUSP 41468 View Materials ) GoogleMaps , H/V “Antares”, REVIZEE/ Central Expedition, Besnard Bank , stn D41, 19°41’S, 38°14’W, 29.ii.1996, 69 m. GoogleMaps Rio de Janeiro: 1 juvenile female ( MZUSP 41460 View Materials ), H/V “Antares”, REVIZEE/Central Expedition, “ Almirante Saldanha ” Bank , stn 7 BT36, 22°31’S, 37°35’W, M. Tavares coll., 8.ii. 1996, 105 m. GoogleMaps

Distribution. Amphi-Atlantic. Western Atlantic: Gulf of Mexico, Antilles, Venezuela and Brazil (Espírito Santo and Rio de Janeiro) ( Grajal & Laughlin 1984; Coelho & Ramos-Porto 1992; Melo 1996; Felder et al. 2009; Diez García 2014). Brazilian oceanic islands: Trindade ( Serejo et al. 2006; Tavares et al. 2017); seamounts (this study): Almirante Saldanha, Besnard, Davis, Dogaressa, Jaseur, Montague and Vitória banks. It is also known from the Pleistocene of Coral Rock, Barbados ( Collins & Morris 1976) and upper Pleistocene of Port Morant Formation, Jamaica ( Donovan 2010). Central Atlantic: Ascension Island ( Rathbun 1930; Manning & Chace 1990; De Grave et al. 2017). Eastern Atlantic: Madeira, Canary Islands; Cape Verde, São Tomé and Annobon ( Monod 1956; Manning & Chace 1990; González 2016).

Ecological notes. Laleonectes vocans ( Fig. 28A–D View FIGURE 28 ) has been reported from a variety of bottoms including calcareous sand, coral, coral rubble, calcareous algae and seagrass flats, between 6 and 310 m ( Grajal & Laughlin 1984; Coelho & Ramos-Porto 1992; Melo 1996). It is the most common swimming crab in Trindade where it has been found in calcareous sand with shell and algal fragments; calcareous sand; sand and rocks; calcareous algae and sand bottoms. It is preyed on by the grouper Cephalopholis cruentata (Lacepède) ( Murillo-Pérez et al. 2021) .

Remarks. The species in Laleonectes can be easily recognized by having a stridulating ridge ( Manning & Chace 1990) stretching along the lateral walls of the carapace, across the pterygostomial region into the infraorbital margin ( Fig. 28B View FIGURE 28 ).

MZUSP

Museu de Zoologia da Universidade de Sao Paulo

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Portunidae

Genus

Laleonectes

Loc

Laleonectes vocans (A. Milne-Edwards, 1878 )

In, First Published 2022
2022
Loc

Neptunus vocans A. Milne-Edwards, 1878: 225

Milne-Edwards, A. 1878: 225
1878
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