Acetes americanus americanus Ortmann, 1893

Mantelatto, Fernando L. & Al, Et, 2022, Checklist of decapod crustaceans from the coast of the São Paulo state (Brazil) supported by integrative molecular and morphological data: V. Dendrobranchiata and Pleocyemata [Achelata, Astacidea, Axiidea, Caridea (Alpheoidea and Processoidea excluded), Gebiidea, Stenopodidea], Zootaxa 5121 (1), pp. 1-74 : 21

Acetes americanus americanus Ortmann, 1893

( Fig. 4C )

Acetes americanus Ortmann, 1893: 39 , tab. II, fig. 2.

Material examined. Brazil, São Paulo: 1 ♀, CCDB 5931 , Ubatuba , coll. G. Bochini, 22.x.2014; 1 ♂, 10 ♀, CCDB 4939 , São Vicente, coll. A. Castilho, 3.ix.2012; 1 ♂, 7 ♀, CCDB 4952 , São Vicente, coll. A. Castilho, 3.ix.2012; 2 ♂, 4 ♀, CCDB 4953 , São Vicente, coll. A. Castilho, 3.ix.2012; 3 ♂, 14 ♀, CCDB 3251 , Cananéia, estuary, colls. R. Costa et al., 17.iv.2011; 3 ♀, CCDB 3761 , Cananéia , coll. A. Castilho, 11.iii.2012; 1 ♀, CCDB 5643 , Cananéia, coll. R. Costa , 20.v.2012; 2 ♀, CCDB 4955 , Cananéia, colls. A. Castilho et al., vii.2013; 1 ni, CCDB 6027 , Cananéia, colls. R. Costa et al., 22.iv.2014.

Distribution. Western Atlantic— USA (North Carolina), Gulf of Mexico, Caribbean Sea, Puerto Rico, Panama, Venezuela, Suriname, French Guiana, and Brazil (Pará, Maranhão, Ceará, Rio Grande do Norte, Pernambuco, Alagoas, Bahia, São Paulo, Paraná, Santa Catarina, Rio Grande do Sul) ( Holthuis 1959; Chace 1972; Omori 1975; Coelho & Ramos-Porto 1980; Coelho et al. 1986; D’Incao 1995a; Pérez Farfante & Kinsley 1997; Costa et al. 2000, 2003; D’Incao & Martins 2000; Barros & Pimentel 2001; Vasques et al. 2003; Boos et al. 2012; Melo Júnior et al. 2016; Mantelatto et al. 2018).

Remarks. Previous records from the coast of São Paulo include Ubatuba, Guarujá, and Ilha Comprida ( Costa et al. 2000, 2003; D’Incao & Martins 2000; Severino-Rodrigues et al. 2002; Simões et al. 2012; Mantelatto et al. 2018). On the coast of São Paulo, A. a. americanus is captured preferably in lower depths and high temperatures (23.5‒28.5°C) ( Simões et al. 2013). Although it may be captured incidentally as bycatch with other shrimps, and the consumption of specimens of the same genus occurs in the northern Brazil, these were not considered significant threats to the species ( Costa & Simões 2016). The taxonomic status of this genus has been under debate for long time and some subspecies are still considered valid as Acetes a. carolinae and A. a. americanus ( Holthuis 1948; WoRMS 2022). A molecular study in progress by our team (Simões et al. in progress) will sheds light in the taxonomic status and the identity of A. a. americanus , as well as its relationship with other congeners from western Atlantic. Sequences accession number (GenBank): CCDB 4939—16S ( KX196538 ), COI ( KX196595 ) ( Mantelatto et al. 2018).

Figures

FIGURE 4. Families Luciferidae and Sergestidae. A) Belzebub faxoni (Borradaile, 1915) (CCDB 5930). B) Lucifer typus H. Milne-Edwards, 1837 (CCDB 5904). C) Acetes americanus americanus Ortmann, 1893 (CCDB 5931). D) Peisos petrunkevitchi Burkenroad, 1945 (CCDB 5932). Animals from Brazil, São Paulo, R/V Soloncy Moura Expedition, st. 3 (A), st. 6 (B), Ubatuba (C, D). Sex: male (A, B), female (C, D). Scale bars (mm): A—2, B—2; C—5; D—8. Photographs by R.C. Buranelli.