Palaemon pugio (Holthuis, 1949)

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

Palaemon pugio (Holthuis, 1949)

Figure 3C, D

Material examined (22 specimens). Among seagrass beds. (UANL-FCB-C17-8120), S1 (24°29.1000ʹ N, 097° 41.4500ʹ W), 1 specimen (♀); 8 March 2014 ( UANL- FCB-C 17-8125), S2 (24°29.1833ʹ N, 097°41.9667ʹ W), 1 specimen (♂); 4 August 2014 (UANL-FCB-C17-8134), S1 (same point), 17 specimens (6♀, 11♂); 5 August 2014 (UANL-FCB-C17-8145), S3(24°29.2667ʹ N, 097° 45.9833ʹ W), 3 specimens (♀); 18 February 2017 ( UANL- FCB-C 17-8163), S3 (same point), 11 specimens (7♀, 4♂).

Distribution. Quebec; near Yarmouth, Nova Scotia; Newcastle and East Brunswick, Maine; northern Massachusetts to Texas; intermittent from Verte River, 3 miles to the west of St Modeste ( Holthuis 1952, Williams 1974, 1984, Abele and Kim 1986); islands and coastal lagoons from Veracruz to Campeche; Puerto Progreso, Yucatán; Akumal, Quintana Roo ( Zarur 1962, Román-Contreras 1988, Rodríguez et al. 2000, Domínguez et al. 2003, Barba-Macías et al. 2005, Barba-Macías 2012).

Previous records from Laguna Madre. Hildebrand (1958, 1969), Román Contreras (1988), Barba-Macías (1999), Rodríguez et al. (2000), Leija-Tristán et al. (2000), Sheridan and Minello (2003), Barba-Macías et al. (2005), Barba-Macías (2012).

Remarks. This species is recognized by having an unarmed stretch in both sides of the rostrum before a dagger-shaped tip, and 2–5, generally 3, ventral teeth. The fingers of second pereiopod are without teeth on their cutting edges ( Abele and Kim 1986) ( Fig. 3C, D). Our material agreed with the previous features.