The evolutionary diversity of barnacles, with an updated classification of fossil and living forms Author Chan, Benny K. K. Author Dreyer, Niklas Author Gale, Andy S. Author Glenner, Henrik Author Ewers-Saucedo, Christine Author Pérez-Losada, Marcos Author Kolbasov, Gregory A. Author Crandall, Keith A. Author Høeg, Jens T. text Zoological Journal of the Linnean Society 2021 2021-02-25 193 789 846 journal article 3656 10.1093/zoolinnean/zlaa160 40324061-d8e8-4cfa-9151-4d7b110cff12 0024-4082 5637275 A77C1793-B652-41CE-BB27-CD2E29DEB201 FAMILY SYNAGOGIDAE GRUVEL, 1905 Diagnosis: Ecto-, meso- or endoparasites of alcyonaceans, antipatharians and stalked crinoids. Carapace and main body have generalized morphology. Females with bivalved or dorsally fused carapace. Antennules six-segmented; terminal segment with claw and proximal sensory process. Lanceolate mandibles with one or more longitudinal setal rows and complex or simple teeth. Hypopharynx modified to long languette (absent in Waginella Grygier, 1983 ). Six pairs of setose, biramous thoracopods. Large epaulets on thoracomere 6 (absent in Synagoga Norman, 1888 ). Cardomanica Lowry, 1985 (three species) Flatsia Grygier, 1991 (one species) Gorgonolaureus Utinomi, 1962 (seven species) Isidascus Moyse, 1983 (one species) Sessilogoga Grygier, 1990 (two species) Synagoga Norman, 1888 (seven species) Thalassomembracis Grygier, 1984 (seven species) Waginella Grygier, 1983 (three species)