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Rostratula is a genus of painted-snipes in the family Rostratulidae. It contains two extant species distributed across Africa, Asia and Australia.

1/ Greater painted-snipe or goudsnip (Nhát hoa, Rostratula benghalensis)

The term Charadriiformes comes from New Latin, combining the Greek word kharadrios ("a bird of river valleys" or "a bird of ravines") and the Latin suffix -formes meaning "forms" or "shaped like". Therefore, Charadriiformes translates to "birds shaped like or resembling the charadrius," which is a type of plover or stone curlew historically found in dry river beds or ravines. 

The family name Rostratulidae comes from Latin roots: "Rostratula" is a diminutive of rostrata (beaked), meaning "small-beaked," referring to their shorter bills compared to true snipes, with the "-idae" suffix indicating a bird family.

The Rostratulidae in the order Charadriiformes, commonly known as the painted-snipes, are a family of wading birds that consists of two genera: Rostratula and Nycticryphes.