Decapoda - Achelata - Scyllaridae - Scyllarus

Scyllarus chacei Holthuis, 1960

World Distribution
Felder et al. (2009) - Western Atlantic - 11-329 m. - North Carolina, Gulf Mexico, Bahama, Carribean Sea, Brazil.
(Sasaki, 2019) - Surinam, type locality; Pará, Ceará, Rio Grande do Norte, Pernambuco, Alagoas, Sergipe, Bahai, and Rio de Janeiro States, Brazil

Environnement : Marine - Substrat/Association : Hard bottom (rock and rubbles)

Vertical range : Shallow to deep-waters (e.g. 10-190 m) - Min-Max observed: 11-329 m

Lesser Antilles data
Distribution: North Carolina, Gulf of Mexico, Bahamas, Caribbean Sea, Brazil. Lesser Antilles, VGI (St Thomas, St John), ICA (Guadeloupe). 11-329 m. WA.
Scyllarus americanus - Bouvier, 1925: 448, pl. 7, fig. 3, St John [R/V Blake, st. 142, Flanegan Passage; in part no S. americanus = S. chacei fide Holthuis, 1960, see comments]
Scyllarus chacei - Lyons, 1970: 27, fig. 10, Virgin Islands (St Thomas),
Guadeloupe - Karubenthos 2012 (det. E. Macpherson, Besse 2013), st. GD01, 4 May 2012, 16°22.57'N, 61°34.12'W, 80 m, MNHN-IU-2013-4905 (JL141), 4264 (JL141-photo); st. GD02, 4 May Y2012, 16°22.57'N, 61°34.12'W, 80 m, MNHN-IU-2013-4266 (JL227); st. GD25, 14 May 2012, 16°25'N, 61°33'W, 160 m, MNHN-IU-2013-4263 (JL772-photo); st. GD27, 15 May 2012, 16°25'N, 61°33'W, 120 m, MNHN-IU-2013-4261 (JL857-photo); st. GD55, 24 May 2012, 16°22.48'N, 61°35.46'W, 85 m, MNHN-IU-2013-4268 (JL1357-photo), 4904 (JL1366); 4262 (JL1366-photo); st. GD66, 27 May 2012, 16°08.17'N, 61°17.32'W, 33 m, MNHN-IU-2013-4267 (JL1456-photo); st. GM06, 5-6 May 2012, 16°09'N, 61°33.67'W, 1 m, MNHN-IU-2013-4265 (JL281); st. GD34, 17 May 2012, 16°25.72'N, 61°33.79'W, 80 m, MNHN-IU-2013-4438 (JL994).
Scyllarus chacei - Guadeloupe (first record), Karubenthos II 2015, field det. J. Poupin, st. CP4529, 11 June 2015, 16°24.4'N, 61°33.68'W, 176-183 m, MNHN-IU-2013-18903.

French Guiana and surroundings areas: Guiana, Suriname, Brazil (Amapŕ)
Scyllarus americanus – Holthuis, 1959a: 126, Suriname [27–53 m] – Not S. americanus (Smith) but S. chacei new species in Holthuis (1960: 152, "Under the name Scyllarus americanus (Smith) two species have currently been confused. The true Scyllarus americanus is known to inhabit the Atlantic coast of the U.S.A. from North Carolina to Florida, and the eastern Gulf of Mexico, including Cuba; it has been found in depths between 0 and 19 (usually between 3 and 12) fathoms. The other species, for which the name Scyllarus chacei is proposed here, has a far wider range, which extends from North Carolina to northeastern Brazil and throughout the Caribbean area; it is found in greater depths (usually 19 to 31 fathoms)"). — Guinot-Dumortier, 1960: 178, French Guiana [Sand, 105 m; probably not S. americanus but S. chacei].
Scyllarus chacei Holthuis, 1960: 152, Suriname [Holotype: A female specimen (c.l. 10 mm) from north-northwest of the mouth of the Marowijne River, about 20 miles off the coast of Suriname, 29 April-3 May 1957, third voyage of the "Coquette" (Rijksmuseum van Natuurlijke Historie, Cat. No. Crust. D. 13169)]. — Coelho, 1971, table 1: Brazil Amapá [As 'province Guianense (foz do Amazonas)']. — Takeda, 1983: 76, Suriname, French Guiana [15–180 m]. — Le Loeuff & Cosel, 2000: 25, annexe 1, French Guiana. — Sylva et al., 2012, Crustaceana: 1171, Brazil Amapá [72 m, in the shrimp fishing zone of Amapá State, 3°53'N 50°19'W, on a muddy bottom]. — Corbari et al., 2015: 165–167, unnumbered tab., French Guiana [R/V Hermano Gines, July–October 2014, 30–800 m]. — Cintra et al., 2017: tab. 1-6, Brazil Amapá [bycatch of shrimp fisheries, 0-4°N, 27-47 m]. — Cruz et al., 2021, fig. 2, Brazil Amapá.
Distribution/Habitat – WA; Marine; 11–329 m.

Comment(s) on data
Holthuis (1960: 152) - Scyllarus chacei has been extensively described and well figured by Bouvier (1925, Mem. Mus. Comp. Zool. Harvard, 47(5): 448-450, PL 7, Fig 3), who identified his specimen as Scyllarus americanus, though he already noticed differences between it and a type specimen of Scyllarus americanus. Fenner A. Chace, Jr., Curator, Division of Marine Invertebrates, U.S. National Museum, was the first to draw my attention to the fact that the differences between this form and S. americanus are of a specific nature; it is therefore a great pleasure for me to dedicate this new species to him.

References : PDF list, 214 pp (1.4 Mo)

This species in Worms Database