SANDPIPERS AND ALLIED SPECIES. 167 



very slender ; toes three, small, laterally marginate. Wings 

 very long, pointed ; tail short, somewhat doubly emarginate. 

 1. Calidris arenaria. Common Sanderling. In "winter, 

 pale grey above, with dusky lines, white beneath. In summer, 

 variegated above with black and red, beneath red anteriorly, 

 white behind. 



GENUS IV. NUMENIUS. CURLEW. 



Bill at least twice the length of the head, arcuate, slender, 

 somewhat flexible, with the ridge broadly convex, the nasal 

 groove very long, the tip enlarged, sub-elliptical. Nostrils 

 small, linear, pervious, basal. Legs long, slender ; tarsus 

 reticulated, but with a series of short scutella anteriorly for 

 two-thirds of its length ; toes rather short, broad and flat 

 beneath. Wings very long, pointed ; tail rather short, 

 rounded. 



1. Numenius Arquata. Great Curlew. Length from 

 twenty-three to twenty-eight inches ; bill from five to seven 

 inches. Hind part of the back Avhite, with narrow longi- 

 tudinal dark markings. 



2. Numenius Pliceopus. Wkimbrel Curlew. Length from 

 sixteen to nineteen inches ; bill little more than three inches. 

 Hind part of back white. 



GENUS V. LIMOSA. GODWIT. 



Bill about twice the length of the head, straight or 

 slightly curved upwards, slender, considerably flexible, with 

 the ridge convex, flattened at the base and toward the end, 

 the nasal groove extending nearly to the end, the tip slightly 

 enlarged, obtuse. Nostrils small, linear, basal. Legs long 

 or moderate, .slender ; tarsus scutellate ; toes rather short, 

 broad and flat beneath, the outer two connected by a rather 

 large basal web, running out narrow to the end of each. 

 Wings long, pointed , tail short, the four middle feathers a 

 little longer. 



1. Limosa rufa. Bar-tailed Godwit. Bill about four 

 inches long, recurvate, flesh-coloured, dusky toward the 



