Saunders's gull 
(Mòng bể mỏ ngắn, Saundersilarus saundersi) or the Chinese black-headed gull
earlier placed in the genus Larus.

Saunders's gull (Saundersilarus saundersi) is a species of gull in the family Laridae. 
The bird is found in China, Japan, North Korea, South Korea, Macau, Russia, Taiwan, and Vietnam.

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 Laridae comes from the Latin word Larus, meaning "gull," which itself derives from the Ancient Greek word λάρος (laros), also meaning "gull" or a large seabird, sometimes described as "ravenous". So, Laridae essentially means "the gull family," encompassing gulls, terns, skuas, and skimmers.

Saundersilarus is a recently created genus name for Saunders's gull, combining the English name "Saunders" (honoring ornithologist William Saunders) with the Greek suffix -ilarus

The Saunders's gull is named after the British ornithologist Howard Saunders.