Synalpheus bousfieldi Chace, 1972

Paixão, Pedro Henrique, Terossi, Mariana, Pasinatto, Karmine, Bochini, Gabriel Lucas & Almeida, Alexandre Oliveira, 2025, Shrimps of the genus Synalpheus Spence Bate, 1888 (Decapoda: Alpheidae) from Northeast Brazil region, Zootaxa 5666 (1), pp. 1-52 : 15

Synalpheus bousfieldi Chace, 1972

Material examined: None.

Description: Chace (1972), Dardeau (1984), Macdonald & Duffy (2006), Ríos & Duffy (2007), and Anker et al. (2012).

Distribution: Bahamas, Gulf of Mexico, Caribbean Sea, and Brazil (Rocas Atoll) ( Chace 1972; Ríos & Duffy, 2007; Hultgren et al. 2010, 2011; Anker et al. 2012).

Ecology: On bottoms with abundance of coral rubble and sponges [e.g., H. intestinalis , H. caerulea , Ectyoplasia ferox ( Duchassaing & Michelotti, 1864) , cited in Ríos & Duffy (2007) as Hymeniacidon amphilecta , A. crassa , cited in Ríos & Duffy (2007) as Pseudoceratina crassa ] ( Ríos & Duffy, 2007; see Table 1 in Anker et al. 2012 for more records); in heterosexual pairs or in groups composed of several adult individuals in an approximately equal sex ratio; 5–20 m ( Ríos & Duffy, 2007; Anker et al. 2012).

Remarks: Synalpheus bousfieldi , along with S. brooksi , S. carpenteri Macdonald & Duffy, 2006 , S. chacei Duffy, 1998 , S. corallinus Macdonald, Hultgren & Duffy, 2009 , S. plumosetosus Macdonald, Hultgren & Duffy, 2009 , S. ruetzleri Macdonald & Duffy, 2006 , and S. thele Macdonald, Hultgren & Duffy, 2009 , belongs to the S. brooksi complex ( Ríos & Duffy, 2007; Macdonald et al. 2009; Anker et al. 2012). In Brazil, S. bousfieldi has been reported from Amapá to Ceará ( Christoffersen 1979; Coelho-Filho 2006) and Rocas Atoll ( Anker et al. 2012). Records of this species in different studies (e.g., Ríos & Duffy, 2007; Hultgren et al. 2010, 2011) consistently cite Christoffersen (1979) as the reference for Brazilian records. However, the author did not provide any specific comments regarding its occurrence in Brazil. Similarly, Coelho-Filho (2006) reported the species from Ceará, but did not include illustrations or detailed morphological remarks of the analyzed material. In the present study, no specimens of S. bousfieldi were found. Conversely, Anker et al. (2012) provided illustrations and accession numbers for material collected at Rocas Atoll, offering a more reliable record. Based on this evidence, the distribution of S. bousfieldi should be considered confirmed only for the Rocas Atoll.