Ctenostomatida Key created by Hans De Blauwe Restart from Ctenostomatida | Restart Completely | Select different key | Show legend

Characteristics  borings        kidney-shaped       S-shaped  budding        continuous budding of autozooids       autozooids budding from kenozooidal stolon  colony        an encrusting, continuous sheet       encrusting, uniserial       erect, not rubbery       erect, rubbery, brown, often washed ashore  colony can be pealed off        easily       rather not  color        grey       translucent       brown       white       translucent with white borders       yellow  filaments on frontal surface        absent       present  kenozooids other than stolons        absent       minute spherical, around the orifice       as brown, corneous spines around the orifice       a spherical pair proximo-lateral to orifice  number of tentacles        8       9       10       11       12       13       14       15       16       17       18       19       20       21       > 21  orifice        on a prominent cilindrical peristome       not so       bilabiate  reproduction        ITO sometimes present       embryos in clusters of 3 or 4 in the zooids, never ITO       embryos in clusters of 6 or 7 in the zooids, never ITO       embryos sometimes present but number not important, never ITO       embryo single, yellow       embryo single, pink  substrate preferences        hydrozoid stems and erect Bryozoa       seaweed       hard substrates as stones, shells       on several substrates       boring in worm tubes       boring in shells       decapoda  zooids along the stolon        in a straight row       in a spiral arrangement

Remaining taxa: Alcyonidium condylocinereum Porter, 2004 Alcyonidium diaphanum (Hudson, 1778) Alcyonidium gelatinosum (Linnaeus, 1761) Alcyonidium hirsutum (Fleming, 1828) Alcyonidium hydrocoalitum Porter, 2004 Alcyonidium mamillatum Alder, 1857 Alcyonidium mytili Dalyell, 1848 Alcyonidium parasiticum (Fleming, 1828) Alcyonidium polyoum (Hassall, 1841) Amathia lendigera (Linnaeus, 1758) Anguinella palmata Van Beneden, 1845 Arachnidium lacourti d'Hondt & Faasse, 2006 Bowerbankia citrina (Hincks, 1877) Bowerbankia gracilis Leidy, 1855 Bowerbankia imbricata (Adams, 1798) Buskia nitens Alder, 1857 Farrella repens (Farre, 1837) Flustrellidra hispida (Fabricius, 1780) Hypophorella expansa Ehlers, 1876 Panolicella nutans Jebram, 1985 Penetrantia concharum Silén, 1946 Vesicularia spinosa (Linnaeus, 1758) Walkeria uva (Linnaeus, 1758)