Thryssa adelaeThryssa adelae, the Swatow thryssa, is a species of ray-finned fish in the family Engraulidae. It is found in the north-western Pacific Ocean.SizeThis species reaches a length of.EtymologyThe fish is named in honor of American Baptist missionary Adele M. Fielde, who sent a collection of fishes from the port of Swatow, China, including the type specimen of this fish, to the University of Indiana in 1885.