Pelargonium carneum

The majority of Hydrozoa is represented by not readily noticeable, small species. In recent decades, however, taxonomic knowledge… (More)

.............................................................................................................................................................................. 5 Introduction ......................................................................................................................................................................... 5 Material and methods .......................................................................................................................................................... 6 Systematic account.............................................................................................................................................................. 6 Phylum Cnidaria Verrill, 1865 ............................................................................................................................................ 6 Subphylum Medusozoa Petersen, 1979 .............................................................................................................................. 7 Class Hydrozoa Owen, 1843 ............................................................................................................................................... 7 Subclass Hydroidolina Collins, 2000 .................................................................................................................................. 7 Order Anthoathecata Cornelius, 1992 ................................................................................................................................. 8 Suborder Filifera Kühn, 1913 ............................................................................................................................................. 8 Family Oceaniidae Eschscholtz, 1829 ................................................................................................................................ 9 Genus Corydendrium Van Beneden, 1844a ........................................................................................................................ 9 Corydendrium corrugatum Nutting, 1905 ................................................................................................................. 10 Corydendrium parasiticum (Linnaeus, 1767) ............................................................................................................ 11 Genus Rhizogeton L. Agassiz, 1862 ................................................................................................................................. 13 Rhizogeton sp. ............................................................................................................................................................ 13 Genus Turritopsis McCrady, 1857 .................................................................................................................................... 14 Turritopsis minor (Nutting, 1905) .............................................................................................................................. 15 Turritopsis cf. nutricula McCrady, 1857.................................................................................................................... 16 Family Cordylophoridae von Lendenfeld, 1885 ............................................................................................................... 17 Genus Cordylophora Allman, 1843 .................................................................................................................................. 17 Cordylophora caspia (Pallas, 1771) ........................................................................................................................... 18 Family Bougainvilliidae Lütken, 1850 ............................................................................................................................. 19 Genus Bimeria Wright, 1859a ........................................................................................................................................... 19 Bimeria vestita Wright, 1859a ................................................................................................................................... 20 Genus Bougainvillia Lesson, 1830 ................................................................................................................................... 21 Bougainvillia muscus (Allman, 1863) ....................................................................................................................... 21 Family Pandeidae Haeckel, 1879 ...................................................................................................................................... 23 Genus Amphinema Haeckel, 1879 .................................................................................................................................... 23 Amphinema sp. ........................................................................................................................................................... 24 Genus Hydrichthys Fewkes, 1887..................................................................................................................................... 24 Hydrichthys pietschi Martin, 1975 ............................................................................................................................. 26 Genus Merga Hartlaub, 1913 ............................................................................................................................................ 26 (?)Merga sp. ............................................................................................................................................................... 27 Family Balellidae Stechow, 1922 ...................................................................................................................................... 28 Genus Balella Stechow, 1919 ............................................................................................................................................ 28 Balella mirabilis (Nutting, 1905) ............................................................................................................................... 29 Family Hydractiniidae L. Agassiz, 1862 ........................................................................................................................... 31 Genus Hydrodendrium Nutting, 1905 ............................................................................................................................... 32 Hydrodendrium gorgonoides Nutting, 1905 .............................................................................................................. 32 Genus Stylactaria Stechow, 1921a .................................................................................................................................... 34 Stylactaria munita, sp. nov. ....................................................................................................................................... 35 Family Eudendriidae L. Agassiz, 1862 ............................................................................................................................. 37 Genus Eudendrium Ehrenberg, 1834 ................................................................................................................................ 38 Eudendrium capillare Alder, 1856 ............................................................................................................................. 39 Eudendrium carneum Clarke, 1882 ........................................................................................................................... 40 Eudendrium sp. 1 ....................................................................................................................................................... 42 Eudendrium sp. 2 ....................................................................................................................................................... 42 Suborder Capitata Kühn, 1913 .......................................................................................................................................... 43 Clade Aplanulata Collins, Winkelman, Hadrys, & Schierwater, 2005 ............................................................................. 43 Family Hydridae Dana, 1846 ............................................................................................................................................ 43 Genus Hydra Linnaeus, 1758............................................................................................................................................ 44 

This paper is the first taxonomic account of the hydroid orders Anthoathecatae and Leptothecatae from the Caribbean and Pacific… (More)

Marine hydroids are commonly thought to be defended by stinging organelles called nematocysts that penetrate predator tissues and… (More)