Palaemon northropi (Rankin, 1898)
Leander northropi Rankin, 1898: 245, pl. 30, fig. 4.
Material examined. 6 m, 10 f, 01.VIII.2008, Cairú, Triana River, Boipeba Island, MZUESC 1265; 1 m, 3 f, 01.VIII.2008, Cairú, Triana River, Boipeba Island, MZUESC 1266; 4 m, 7 f, 13.XI.2006, Maraú, Ponta do Mutá, MZUESC 769; 4 m, 7 f, 05.V.2008, Itacaré, Concha Beach, mouth of Contas River, MZUESC 1204; 1 m, 4 f, 3 juv, 05.V.2008, Itacaré, Contas River, MZUESC 1213; 1 ni, 10.VIII.2003, Ilhéus, Jairí Beach, Olivença, MZUESC 35; 1 m, 29.IV.2003, Ilhéus, Back-door Beach, Olivença, MZUESC 154; 2 ni, 11.VII.2003, Ilhéus, Back-door Beach, Olivença, MZUESC 216; 4 ni, 11.VII.2003, Ilhéus, Back-door Beach, Olivença, MZUESC 217; 7 ni, 06.V.2004, Ilhéus, Sirihyba Beach, Olivença, MZUESC 329; 14 ni, 10.VII.2004, Ilhéus, Sirihyba Beach, Olivença, MZUESC 330; 1 f, 28.V.2004, Ilhéus, Batuba Beach, Olivença, MZUESC 635; 1 m, 5 f, 09.III.2008, Belmonte, Mojiquiçaba River, MZUESC 1181; 2 f, 1 juv, 08.III.2008, Santa Cruz Cabrália, João de Tiba River, near Santo André Beach, MZUESC 1168; 2 m, 3 f, 18.III.2007, Mucuri, mouth of Mucuri River, St. 1, MZUESC 798. See also report by Almeida et al. (2006).
Distribution. Western Atlantic—Bermuda, West Indies, Central America, northern South America, Brazil (Ceará to Santa Catarina) and Uruguay (Ramos-Porto & Coelho 1990).
Ecological notes. In marine and estuarine habitats. Most specimens were collected during low tide in tide pools, on the river edge, under branches, on rocky, sandy and muddy bottoms. Some have been collected together with other palaemonids Palaemon pandaliformis (Stimpson, 1871) and Brachycarpus biunguiculatus . Salinity range: 12–35 psu.
Previous records. locality not informed [Coelho & Ramos 1972, as Palaemon (Palaeander) northropi; Ramos-Porto & Coelho 1990, as P. (P.) northropi]; Ilhéus [Almeida et al. 2006, as P. (P.) northropi].