Abstract
In the recently published revision of the barnacle family Oxynaspididae (Van Syoc & Dekelboum 2011), the genus name Pycnaspis was proposed for oxynaspidids with the following characteristics: scutum with shallow adductor muscle pit, lacking distinct ridge running from umbo to apex; tergum proximal to scutum and carina, without prominent projections on margins or raised bumps on surface; carina with surface smooth, basal end rounded, not forked.
References
Broch, H. (1931) Papers from Dr. Th. Mortensen’s Pacific Expedition 1914–16. LVI. Indomalayan Cirripedia. (With 41 figures in the text.) Videnskabelige Meddelelser Dansk Naturhistorisk Forening, 91, 1–146.
Ørvig, T. (1958) Pycnaspis splendens, new genus, new species, a new ostracoderm from the Upper Ordovician of North America. Proceedings of the United States National Museum, 108 (3391), 1–23.
Van Syoc, R.J. & Dekelboum, A.M. (2011) Oxynaspididae (Crustacea, Cirripedia): phylogenetics and evolutionary ecology, with descriptions of three new genera and six new species. Zootaxa, 3103, 1–32.