Limosa is a genus of bird in the family Scolopacidae belonging to the order Charadriiformes.
The genus is commonly known as the gotwit comprising large, long-billed, long-legged and strongly migratory waders of the bird.
The godwits can be distinguished from the curlews by their straight or slightly upturned bills, and from the dowitchers by their longer legs. 
The genus name Limosa is from Latin and means "muddy", from limus, "mud". The English name "godwit" is believed to imitate the bird's call.

1/ Black-tailed godwit (Choắt mỏ thẳng đuôi đen, Limosa limosa) 
2/ Bar-tailed godwit (Choắt mỏ thẳng đuôi vằn, Limosa lapponica)
The specific name lapponica refers to Lapland.