122. Calidris (Sanderling). Bill as long as the head, slender, straight, soft, and flexible, dilated towards the end; nostrils basal, narrow, pierced in the long nasal groove which reaches to the tip; legs slender; toes three, scarcely connected by a membrane; wings moderate; first primary longest.
123. Tringa (Sandpiper, Knot, Dunlin, Stint). Bill as long as the head or a little longer, straight or slightly curved, soft and flexible, dilated, and blunt towards point; both mandibles grooved along sides; nostrils lateral wings moderately long, pointed, first quill longest; legs moderately long; three toes in front, divided to origin; one behind, small, articulated upon tarsus.
124. Machétes (Ruff). Bill straight, as long as the head, dilated and smooth at the tip; nasal channel reaching to nearly the end of the bill; nostrils basal; first and second primaries longest; toes four, the outer and middle connected as far as the first joint; neck of the male in spring furnished with a ruff.
125. Tótanus (Redshank, Sandpiper). Bill moderate, slender, soft at the base, solid at the end; both mandibles grooved at the base, upper channelled through half its length; nostrils pierced in the groove; legs long, slender; toes four.
126. Limósa (Godwit). Bill very long, slender, curved upwards, soft and flexible throughout, dilated towards the tip, and blunt; upper mandible channelled throughout its whole length; nostrils linear, pierced in the groove, pervious; legs long and slender; toes four, the outer and middle connected as far as as the first joint; wings moderate; first primary longest.