Alpheus heterochaelis Say, 1818

Herrera-Barquín, Hiram, Leija-Tristán, Antonio & Favela-Lara, Susana, 2018, Updated checklist of estuarine caridean shrimps (Decapoda: Caridea) from the southern region of Laguna Madre, Tamaulipas, Mexico, with new records and a key for taxonomic identification, Check List 14 (2), pp. 479-494 : 484

Alpheus heterochaelis Say, 1818

Figure 4A–C

Material examined (9 specimens). In seagrass beds. 8 March 2014 (UANL-FCB-C19-8127), S2 (24°29.1833ʹ N, 097°41.9667ʹ W), 5 specimens (4♀, 1♂); 4 August 2014 (UANL-FCB-C19-8136), S1(24°29.1000ʹ N, 097°41.4500ʹ W), 3 specimens (1♀, 2♂); 5 August 2014 (UANL-FCB-C19-8144), S3 (24°29.2667ʹ N, 097°45.9833ʹ W), 1 specimen (♂); 17 February 2017 (UANL-FCB-C19-8151), S1 (same point), 5 specimens (4♀, 1♂); 18 February 2017 (UANL-FCB-C19-8158), S3 (same point), 2 specimens (♀).

Distribution. Lower portion of Chesapeake Bay ( USA) to South and West, through the Gulf of Mexico, Cuba, Curaçao, Bermuda, Suriname and Brazil ( Verrill 1922, Chace 1972, Williams 1984, McClure 2005); in Mexico, from Veracruz to Quintana Roo ( Román-Contreras 1988, Markham et al. 1990, Hermoso-Salazar and Martínez- Guzmán 1991, Hernández et al. 1996, Rodríguez et al. 2000).

Previous records from Laguna Madre. Barba-Macías (1999); Rodríguez et al. (2000); Leija-Tristán et al. (2000); Sheridan and Minello (2003); Sheridan (2004); Barba-Macías et al. (2005).

Remarks. Our material agreed with descriptions by Chace (1972) and McClure (2005) regarding male pro- podus of major first chelae, showing deep notches on both ventral and dorsal margins and the merus of first pereopods unarmed distoventrally ( Figure 4B, C).