Wardle, W.J.Contributions in Marine Science2010-02-152010-02-151979http://hdl.handle.net/1969.3/19078p. 53-56.A new larval aporocotylid trematode, Cercaria mercenariae n. sp., is described from the gonadal tissue of the Southern quahog Mercenaria campechiensis (Gmelin) collected from Galveston, Texas. C. mercenariae most nearly resembles Cercaria loossi Stunkard, 1929. This is the first report of a cercaria from clams of the genus Mercenaria.parasitesparasitismhostssouthern quahogMercenaria campechiensisTrematodaCercaria mercenariaenew specieslarvaeArticle