LIMICOL.'E 



343 



In Totanus calidris there is a slender vinculum, and, in 

 addition* the flexor hallucis gives off a special slip to the 

 branch of the flexor communis which supplies the second 

 digit. The arrangement, in fact, is like that in Scopus, in 

 many Accipitres, &c. In the Parridae, on the other hand, the 

 tendons blend early upon the ankle, and in those that have 

 been examined no branch to the hallux has been discovered. 



Ghionis alba has the deep flexor tendons of Totanus. 



In all CharadriidsB the ambiens is present. The genera 

 Charadrius, Calidris, Gambetta, Gallinago, Limosa, Ma- 

 chetes, Scolopax, Strepsilas, Totanus, Tringa, and Vanellus 

 have the reduced formula AXY + . 



In Hcematopus, Himantopus, Becurvirostra, Mgialitis, 

 Numenius, there is the full formula ABXY + ; so, too, in the 

 representatives of the remaining families of the Charadrii, 

 with the sole exception of the Australian thickknee, Bur- 

 rhinus, and some (Edicnemus, which have the formula BXY + . 



With the exception of the Parridse (q.v.) the charadrii- 

 form birds have well-developed caeca. The intestinal mea- 

 surements of a few types are as follows : — 



The brackets nontaiug measurements of a second specimen. 

 ' Anderson, ' On the Pterylosis, &c., of the Spoou-biUed Sandpiper,' Tr. Lir.n. Soc. (2), i. p. 213. 



