Amphiura

Amphiura is a large genus that is currently divided into the following six subgenera: Amphioplus, Amphiura, Fellaria, Ophionema, Ophiopelte and Ophiopeltis. The once used subgenus Acrocnida has been elevated to a genus rank. The fossil record of the genus dates back to the Turonian (Amphiura plana). ==Species==

Extant species include: • Amphiura acacia • Amphiura accedens • Amphiura acrisia • Amphiura adjecta • Amphiura aestuarii • Amphiura affinis • Amphiura africana • Amphiura agitata • Amphiura alba • Amphiura albella • Amphiura algida • Amphiura ambigua • Amphiura amokurae • Amphiura angularis • Amphiura annulifera • Amphiura anomala • Amphiura anster • Amphiura antarctica • Amphiura arcystata • Amphiura argentea • Amphiura aster • Amphiura atlantica • Amphiura atlantidea • Amphiura belgicae • Amphiura bellis • Amphiura benthica • Amphiura beringiana • Amphiura bidentata • Amphiura bihamula • Amphiura borealis • Amphiura bountyia • Amphiura brachyactis • Amphiura brevipes • Amphiura brevispina • Amphiura callida • Amphiura canadensis • Amphiura candida • Amphiura caparti • Amphiura capensis • Amphiura carchara • Amphiura carnea • Amphiura catephes • Amphiura celata • Amphiura ceramis • Amphiura cherbonnieri • Amphiura chiajei • Amphiura clausadae • Amphiura coacta • Amphiura commutata • Amphiura complanata • Amphiura concinna • Amphiura concolor • Amphiura confinis • Amphiura consors • Amphiura constricta • Amphiura corona • Amphiura crassipes • Amphiura crispa • Amphiura crossota • Amphiura crypta • Amphiura dacunhae • Amphiura debilis • Amphiura deficiens • Amphiura deichmanni • Amphiura dejecta • Amphiura dejectoides • Amphiura delamarei • Amphiura demissa • Amphiura diacritica • Amphiura diastata • Amphiura diducta • Amphiura digitula • Amphiura dino • Amphiura diomedeae • Amphiura dispar • Amphiura divaricata • Amphiura dolia • Amphiura duncani • Amphiura ecnomiotata • Amphiura elandiformis • Amphiura eugeniae • Amphiura eugenioides • Amphiura exigua Verrill • Amphiura fasciata • Amphiura fibulata • Amphiura ficta • Amphiura filiformis • Amphiura flexuosa • Amphiura florifera • Amphiura fragilis • Amphiura frigida • Amphiura gastracantha • Amphiura glabra • Amphiura goniodes • Amphiura griegi • Amphiura gymnogastra • Amphiura gymnopora • Amphiura heptacantha • Amphiura heraldica • Amphiura hilaris • Amphiura immira • Amphiura incana • Amphiura inepta • Amphiura ingolfiana • Amphiura inhacensis • Amphiura instans • Amphiura iridoides • Amphiura joubini • Amphiura kalki • Amphiura kandai • Amphiura kinbergi • Amphiura koreae • Amphiura lanceolata • Amphiura latispina • Amphiura leptodoma • Amphiura leptotata • Amphiura leucaspis • Amphiura levidevaspis • Amphiura linearis • Amphiura lorioli • Amphiura luetkeni • Amphiura lunaris • Amphiura lymani • Amphiura macrostyalia • Amphiura maculata • Amphiura madecassae • Amphiura magellanica • Amphiura magnisquama • Amphiura maxima • Amphiura mediterranea • Amphiura megalaspi • Amphiura micra • Amphiura micraspis • Amphiura microplax • Amphiura microsoma • Amphiura modesta • Amphiura monorima • Amphiura morosa • Amphiura muelleri • Amphiura multiremula • Amphiura multispina • Amphiura murex • Amphiura nannodes • Amphiura nociva • Amphiura norae • Amphiura notacantha • Amphiura octacantha • Amphiura otteri • Amphiura pachybactra • Amphiura papillata • Amphiura parviscutata • Amphiura perita • Amphiura plantei • Amphiura poecila • Amphiura polita • Amphiura polyacantha • Amphiura praefecta • Amphiura princeps • Amphiura proposita • Amphiura protecta • Amphiura psilopora • Amphiura ptena • Amphiura pusilla • Amphiura pycnostoma • Amphiura rathbuni • Amphiura reloncavii • Amphiura repens • Amphiura retusa • Amphiura richardi • Amphiura sarsi • Amphiura scabiuscula • Amphiura scabriuscula • Amphiura sculpta • Amphiura securigera • Amphiura semiermis • Amphiura seminuda • Amphiura senegalensis • Amphiura septa • Amphiura septemspinosa • Amphiura serpentina • Amphiura sexradiata • Amphiura simonsi • Amphiura sinicola • Amphiura spinipes • Amphiura stepanovi • Amphiura stictacantha • Amphiura stimpsoni • Amphiura subtilis • Amphiura sundevalli • Amphiura syntaracha • Amphiura tenuis • Amphiura tessellata • Amphiura trachydisca • Amphiura triaina • Amphiura trisacantha • Amphiura tumulosa • Amphiura tutanekai • Amphiura uncinata • Amphiura ungulata • Amphiura unicinata • Amphiura ushakovi • Amphiura vadicola • Amphiura velox • Amphiura verrilli • Amphiura verticillata ==References==