Summary[edit] Description: Tritia alba (Say, 1826) (synonym: Nassarius albus (Say, 1826) )- umbilical view of a variable nassa snail shell. Family Nassariidae - mud snails occur on fine-grained to sandy seafloors or in seagrass beds. They are principally algae eaters and scavengers. Date: 8 March 2011, 19:50. Source: Nassarius albus (variable nassa snail) (San Salvador Island, Bahamas) 4. Author: James St. John.
Summary[edit] Description: English: Specimen of Shell (Mollusca) from the Gulf of Tonkin, collected by the Natural History Museum of Guangxi, and exhibited at Beijing Museum of Natural History in 2017. Date: 13 July 2017, 12:24:04. Source: Own work. Author: Bjoertvedt. Camera location39° 52′ 53.84″ N, 116° 23′ 37.26″ EView all coordinates using: OpenStreetMap - Google Earth 39.881622; 116.393683.