Palaemon northropi (Rankin, 1898)

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 : 482

Palaemon northropi (Rankin, 1898)

Figure 2C, D

Material examined (8 specimens). Among seagrass beds. 5 August 2014 (UANL-FCB-C17-8142), S2 (24° 29.1833ʹ N, 097°41.9667ʹ W), 5 specimens (2♀, 3♂); 5 August 2014 (UANL-FCB-C17-8146), S3 (24°29.2667ʹ N, 097°45.9833ʹ W), 3 specimens (1♀, 2♂).

Distribution. Eastern American coastal regions from Bermuda to Brazil ( Holthuis 1952; Ferreira et al. 2010); Mexico: Bahía de Chetumal ( Castellanos-Osorio 2009), Laguna de Términos, Campeche; Bahía de la Ascención, Quintana Roo ( Chace 1972, Román-Contreras 1988, Wicksten 2005a); Laguna Madre, Tamaulipas (this study [new record]).

Previous records from Laguna Madre. None. New record.

Remarks. This species can be confused with Palaemon floridanus , from which it differs by bearing 3 or 4 ventral teeth in the rostrum ( Fig. 2C).