Palaemon northropi (Rankin, 1898)

Palaemon affinis — Schmitt 1924: 72 (Curaçao); Schmitt 1935: 160 (Curaçao). Not P. affinis H. Milne Edwards, 1837 . Palaemon (Paleander) northropi — Holthuis 1952: 192 (Curaçao).

Material examined. Curaçao: RMNH. CRUS.D.27912: 3 non-ovigerous females, pocl. 3.0, 3.7, 4.4 mm; 1 male, pocl. 4.1 mm; Enoch, 02.ii.1949, littoral, mud, Rhizophora sp., collected by P. Wagenaar Hummelinck (fcn. 1028A) .

Sint Maarten. RMNH. CRUS.D.28683: many (>100) specimens; W of Philipsburg, 17.ii.1957, depth 0–1 m, freshwater pond, collected by L.B. Holthuis.

Ecology. Occurs in a wide range of habitats (De Grave & Anker 2017).

Distribution. Common and widely distributed in the western Atlantic from Bermuda to Uruguay in the intertidal to about 5 m depth (De Grave &Anker 2017; Poupin 2018). Previous records from Curaçao by Schmitt (1924, 1935, as Palaemon affinis), and Holthuis (1952). The species is here recorded for the first time from Sint Maarten.