Stenocionops furcatus ( Olivier, 1791 )

Colavite, Jessica, Santana, William & Tavares, Marcos, 2016, Morphological differences between Stenocionops furcatus (Olivier, 1791) and S. coelatus (A. Milne-Edwards, 1878) (Crustacea, Decapoda, Brachyura, Majoidea), Zootaxa 4184 (3), pp. 517-528: 520-523

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http://doi.org/10.11646/zootaxa.4184.3.6

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lsid:zoobank.org:pub:4C94C297-CB2B-4772-A372-6571ECA42814

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http://treatment.plazi.org/id/03CA9359-677B-FF8F-069C-A826FAA5B471

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scientific name

Stenocionops furcatus ( Olivier, 1791 )
status

 

Stenocionops furcatus ( Olivier, 1791)  

( Figs. 1 B View FIGURE 1. A, C, E , D, F; 2 B; 3 A –B; 4 A –D)

Horned Crab Hughes, 1750: 266, pl. 25, fig. 3 [ Barbados].

Cangrejo Cornudo   Parra, 1787: 135, pl. 50, figs. 2–3 [ Cuba].

Cancer furcatus Olivier, 1791: 148   , 174 [Type locality not given; type perhaps not extant].

Cancer cornudo Herbst, 1804   : 0 6, pl. 59, fig. 6 [type locality: unknown; type in the Berlin Zoological Museum (ZMB Herbst 0070)].

Maia taurus Lamarck, 1818: 242   .

Pericera cornuta   —H. Milne Edwards, 1834: 335; pl. 14 bis, figs. 4–5; 1837: pl. 30, fig. 1; Lucas, 1846: 135; Gibbes, 1850a: 172, 1850b: 26; Guérin-Méneville, 1856: XI; Saussure, 1858: 426; Jones, 1859: 129; Stimpson, 1862: 183; 1871: 113; Desbonne & Schramm, 1867: 12; Streets, 1872:131; Martens, 1872: 84; A. Milne-Edwards, 1873: 51; Miers, 1879: 664, pl. 13, figs. 4–5; 1886: 76; Aurivillius, 1889: 54, pl. 2, fig. 3; Adams & Kendall, 1891: 303; Thallwitz, 1892: 54; Rathbun 1892: 244; Ortmann, 1893: 63; Young, 1900: 69; Moreira, 1901: 64; Coulon, 1908:48; Gundlach & Torralbas, 1917: 19, fig. 629G.

Chorinus armatus Randall, 1839: 108   [Type locality: unknown].

Stenocionops furcata   — Rathbun, 1897: 06; 1901: 73; 1925: 449, pl. 160–161; 1933: 33, fig. 30; Verril, 1908: 415, pl. 25, fig. 2; Stebbing, 1910: 291; Boone, 1930: 102, pl. 31; Holthuis, 1959: 190; Guinot-Dumortier, 1960: 180, figs. 21 a –b; fig. 1; Fausto-Filho, 1967: 12; Coelho & Ramos, 1972: 217; Vélez, 1977: 134, fig 25; Melo, 1996: 244, fig. 1; Sakai, 1999: 25, pl. 12C.

Stenocionops furcata furcata   — Powers, 1977: 58; Abele & Kim, 1986: 49, 507, 543 fig. a; Arenas-Fuentes & Hernández- Aguilera, 2000: 117; Niziski, 2003: 131.

Stenocionops furcatus   — Santana et al., 2004: 859 –874; McLaughlin et al., 2005: 252; Ng et al., 2008: 120; Almeida & Coelho, 2008: 196; Coelho et al., 2008: 24; Melo, 2010: 43; Alves et al., 2012: 56.

Type locality. Locality not given

Geographical distribution. Stenocionops furcatus   is found in the Western Atlantic from Georgia to the Gulf of Mexico, Bahamas, Antilles, Colombia, Venezuela, and Brazil (from Ceará to Rio Grande do Sul).

Material examined. USA, Florida, Gulf of Mexico , Oregon, stn. 4088, 27°44’N – 83°45’W, 04.xii.1962, W. Santana det., 44 m, 1 male ( USNM 1256362) GoogleMaps   . Danish West Indies, From fish pot just outside Harbor , iii.1915, C. R. Shoemaker coll., 1 male, 1 female ( USNM 49954 View Materials )   . Jamaica, Montego Bay, Piles of Wharf , 07.v.1910, E. A. Andrews coll., 1 male ( USNM 43088 View Materials )   . Montego Bay , caught in fish pot in shallow water, 1910, C. B. Wilson coll., 1 female ( USNM 43084 View Materials )   . Montego Bay , vii.1910, E. A. Andrews coll., 1 male ( USNM 43086 View Materials ). Oregon, stn. 5398, 17°53’N – 77°50’W, 18.v.1975, W. Santana det., 40–48 m, 2 males ( USNM 1256352) GoogleMaps   . Barbados, Barbados-Antigua Expedition, 1918, State University of Iowa coll., M. J. Rathbun det., 1 male ( USNM 72563 View Materials )   . Colombia, “Oregon”, stn. 4393, 12°32’N – 71°04’W, 25.ix.1963, W. Santana det., 84 m, 1 male ( USNM 125644) GoogleMaps   . Gulf of Morrosquillo , Oregon II, stn 10230, 9°33’N – 76°02’W 28.xi.1968, D.J.G. Griffin and H. B. Roberts det., 49 m, 1 male ( USNM 1191786) GoogleMaps   . Venezuela, Blanquilla Island , undated, 1 female ( GIC 086)   . Los Testigos Islands , undated, 2 males (GIC unnumbered)   . Cubagua Island , 24.viii.2014, Bolaños J. coll. 1 female ( LSZ 04)   . Brazil, Rio de Janeiro, Bacia de Campos , 25. xi.2010, J.B. Mendonça Jr. coll., 1 female ( MZUSP 29838 View Materials )   . Rio de Janeiro, Baia da Ilha Grande , i.2007, 1 male ( MZUSP 17909 View Materials )   . São Paulo, Ubatuba, Projeto Integrado , 14.vi.1995, F. Torres coll., 1 male ( MZUSP10839 View Materials )   . São Paulo, Ubatuba, Projeto Integrado , stn., 4856, 0 3. vii.1990, 1 juvenile ( MZUSP 8044 View Materials )   . São Paulo, Ubatuba, Projeto Integrado , 03.vii.1990, 3 males ( MZUSP 8046 View Materials )   . São Paulo, Ubatuba, Projeto Integrado , stn. 4855, 03.vii. 1990, 1 male ( MZUSP 8042 View Materials )   . São Paulo, Ubatuba, Ubatuba Bay , 18.xii.1986, M. Tavares and F.W. Kurtz coll., 1 male ( MZUSP 16165 View Materials )   . São Paulo, Búzios Island , 14.xi.01, G. Melo and Silvano R. coll., 1 female ( MZUSP 13978 View Materials )   . Rio Grande do Sul, Projeto REVIZEE Sul , stn. 6681, 09.i.1998, 1 juvenile ( MZUSP 3878 View Materials )   . Rio Grande do Sul, Projeto REVIZEE Sul , stn 6661, 09.i.1998, 1 female, 1 juvenile female ( MZUSP 13392 View Materials )   .

Remarks. Olivier's species Cancer furcatus   was transferred to the genus Stenocionops   by Rathbun (1897) as S. furcata   (feminine singular of furcatus   ). However, in accordance with the provisions of the ICNZ (1999: 35, Art. 30.1.4.3) Stenocionops   should be treated as masculine and, therefore, the specific epithet should take its gender, S. furcatus   .

Randall (1839) described Chorinus armatus   based on a single adult male from an unknown locality, which Gibbes (1850) considered to be identical to S. furcatus (Olivier, 1871)   (as P. cornuta   ). Randall's morphological description of the male holotype agrees very well with the presumed male holotype of C. armatus   deposited in the Academy of Natural Sciences of Philadelphia ( ANSP CA3802) ( Figs. 4 A, B View FIGURE 4. A, B ). Additionally, according to Randall the length of the carapace of the holotype was "nearly 3.5 inches" (88.89 mm), rostrum not included. The carapace length of the presumed male holotype of C. armatus   (80.3 mm) is close to the measurement given by Randall. Similarly, Herbst's (1804) Cancer cornudo   has been considered a junior synonym of S. furcatus ( Olivier, 1791)   (e.g., Rathbun, 1897; Sakai 1999). From the photographs of the male holotype of Chorinus armatus Randall, 1839   , and the female holotype of Cancer cornudo Herbst, 1804   ( Figs. 4 A View FIGURE 4. A, B –D), it is evident that both species apply to Stenocionops   in every respect. The lack of the strong crenation on the anterior margin of the male sterno-abdominal cavity in Chorinus armatus   confirms that it is a junior synonym of S. furcatus ( Olivier, 1791)   and not of S. coelatus   (see below). The crenation on the anterior margin of the sterno-abdominal cavity is absent in the females and, therefore, is of no help to ascertain the synonymy of Cancer cornudo   and S. furcatus   . Consequently, here we have to rely on the distinctly smoother carapace of the female holotype of C. cornudo   (comparatively to S. coelatus   ) to accept its synonymy with S. furcatus   .

Miers (1886: 76) recorded S. furcatus   (as Pericera cornuta   ) from South Africa based on an adult male caught by the Challenger Expedition and labeled as collected from Simon's Bay (Cape of Good Hope). This is the only record of the genus Stenocionops   from outside the Americas and is probably a labeling error. Bahia (Brazil) was the last western Atlantic locality visited by the HMS Challenger before she departed to the Cape of Good Hope. Owing to bad weather the Challenger could not approach Trindade Island and altered her course to Tristan da Cunha and from there sailed to Symon’s Bay, where the crew stayed in quarantine (Spry 1878). It is possible that material actually collected in the coast of Brazil was labeled in Symon’s Bay as being from there.

Living specimens of S. furcatus   have the carapace light brown in color with whitish spots in both sides, reddish marks in gastric, cardiac and intestinal regions. The legs are slightly darker then the carapace ( Figs. 3 A, B View FIGURE 3. A, B ).

ANSP

Academy of Natural Sciences of Philadelphia

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Majidae

Genus

Stenocionops

Loc

Stenocionops furcatus ( Olivier, 1791 )

Colavite, Jessica, Santana, William & Tavares, Marcos 2016
2016
Loc

Stenocionops furcatus

Alves 2012: 56
Melo 2010: 43
McLaughlin 2005: 252
Santana 2004: 859
2004
Loc

Stenocionops furcata furcata

Niziski 2003: 131
Abele 1986: 49
Powers 1977: 58
1977
Loc

Stenocionops furcata

Sakai 1999: 25
Melo 1996: 244
Velez 1977: 134
Coelho 1972: 217
Fausto-Filho 1967: 12
Guinot-Dumortier 1960: 180
Holthuis 1959: 190
Boone 1930: 102
Stebbing 1910: 291
Verril 1908: 415
1908
Loc

Chorinus armatus

Randall 1839: 108
1839
Loc

Pericera cornuta

Gundlach 1917: 19
Coulon 1908: 48
Moreira 1901: 64
Young 1900: 69
Ortmann 1893: 63
Thallwitz 1892: 54
Rathbun 1892: 244
Adams 1891: 303
Aurivillius 1889: 54
Miers 1879: 664
Streets 1872: 131
Martens 1872: 84
Desbonne 1867: 12
Stimpson 1862: 183
Jones 1859: 129
Saussure 1858: 426
Gibbes 1850: 172
Lucas 1846: 135
Milne 1834: 335
1834
Loc

Cancer furcatus

Olivier 1791: 148
1791
Loc

Cornudo

Parra 1787: 135
1787