URMO Taxon list
Archeterokrohnia longicaudata (Hagen & Kapp, 1986)
Archeterokrohnia palpifera Casanova, 1986
Archeterokrohnia rubra Casanova, 1986
Bathyspadella edentata Tokioka, 1939
Calispadella alata Casanova & Moreau, 2005
Eukrohnia bathyantarctica David, 1958
Eukrohnia bathypelagica Alvariño, 1962
Eukrohnia calliops McLelland, 1989
Eukrohnia flaccicoeca Casanova, 1986
Eukrohnia fowleri Ritter-Záhony, 1909
Eukrohnia geptneri Kasatkina, 2001 (uncertain > nomen dubium )
Eukrohnia hamata (Möbius, 1875)
Eukrohnia kitoui Kuroda, 1981
Eukrohnia macroneura Casanova, 1986
Eukrohnia minuta Silas & Srinivasan, 1969
Eukrohnia proboscidea Furnestin & Ducret, 1965
Eukrohnia sinica Zhang & Chen, 1983
Hemispadella dauvini Casanova, 1996
Heterokrohnia bathybia Marumo & Kitou, 1966
Heterokrohnia curvichaeta Casanova, 1986
Heterokrohnia davidi Casanova, 1986
Heterokrohnia fragilis Kapp & Hagen, 1985
Heterokrohnia furnestinae Casanova & Chidgey, 1987
Heterokrohnia heterodonta Casanova, 1986
Heterokrohnia involucrum Dawson, 1968
Heterokrohnia longicaudata Hagen & Kapp, 1986 accepted as Archeterokrohnia longicaudata (Hagen & Kapp, 1986)
Heterokrohnia longidentata Kapp & Hagen, 1985
Heterokrohnia mirabilis Ritter-Záhony, 1911
Heterokrohnia murina Casanova, 1986
Heterokrohnia palpifera (Casanova, 1986) accepted as Archeterokrohnia palpifera Casanova, 1986
Krohnittella boureei Germain & Joubin, 1912
Krohnittella tokiokai Bieri, 1974
Paraeukrohnia absurdus Kasatkina & Stolyarova, 2006 (uncertain > nomen dubium )
Paraspadella anops Bowman & Bieri, 1989
Paraspadella caecafea (Salvini-Plawen, 1986)
Paraspadella gotoi Casanova, 1990
Paraspadella hummelincki (Alvariño, 1970) accepted as Paraspadella pulchella (Owre, 1963)
Paraspadella johnstoni (Mawson, 1944)
Paraspadella legazpichessi (Alvariño, 1981)
Paraspadella nana (Owre, 1963)
Paraspadella pimukatharos (Alvariño, 1987)
Paraspadella pulchella (Owre, 1963)
Paraspadella schizoptera (Conant, 1895)
Paraspadella sheardi (Mawson, 1944)
Praeukrohnia aleutica (Kasatkina, 2002) (uncertain > nomen dubium )
Praeukrohnia ensata Kasatkina & Stolyarova, 2006 (uncertain > nomen dubium )
Praeukrohnia expolitus (Kasatkina, 1998) (uncertain > nomen dubium )
Praeukrohnia fidicula (Kasatkina, 1998) (uncertain > nomen dubium )
Praeukrohnia fidus Kasatkina & Stolyarova, 2006 (uncertain > nomen dubium )
Protoeukrohnia aculeata Kasatkina, 2003 (uncertain > nomen dubium )
Protoeukrohnia beringi Kasatkina, 2003 (uncertain > nomen dubium )
Protoeukrohnia breviata Kasatkina, 2003 (uncertain > nomen dubium )
Protoeukrohnia lata Kasatkina, 2003 (uncertain > nomen dubium )
Protoeukrohnia macrophtalma Kasatkina, 2003 (uncertain > nomen dubium )
Protoeukrohnia nesmeyanovi Kasatkina, 2003 (uncertain > nomen dubium )
Protoeukrohnia speciosa Kasatkina, 2003 (uncertain > nomen dubium )
Protokrohnitella serratochaeta Kasatkina, 2003 (uncertain > nomen dubium )
Pseudeukrohnia aleutica Kasatkina, 2002 accepted as Praeukrohnia aleutica (Kasatkina, 2002)
Pseudeukrohnia barkhatovi Kasatkina, 2001 (uncertain > nomen dubium )
Pseudeukrohnia curticauda Kasatkina, 2002 (uncertain > nomen dubium )
Pseudeukrohnia dolabra Kasatkina, 2001 (uncertain > nomen dubium )
Pseudeukrohnia dolona Kasatkina, 2002 (uncertain > nomen dubium )
Pseudeukrohnia evenkia Kasatkina & Stolyarova, 2006 (uncertain > nomen dubium )
Pseudeukrohnia expolitus Kasatkina, 1998 accepted as Praeukrohnia expolitus (Kasatkina, 1998)
Pseudeukrohnia fidicula Kasatkina, 1998 accepted as Praeukrohnia fidicula (Kasatkina, 1998)
Pseudeukrohnia fimbria Kasatkina, 2001 (uncertain > nomen dubium )
Pseudeukrohnia flagroformes Kasatkina, 2001 (uncertain > nomen dubium )
Pseudeukrohnia gracilis Kasatkina, 2002 (uncertain > nomen dubium )
Pseudeukrohnia ilyichovi Kasatkina, 1998 (uncertain > nomen dubium )
Pseudeukrohnia lamutica Kasatkina, 2001 (uncertain > nomen dubium )
Pseudeukrohnia macrocauda Kasatkina, 2002 (uncertain > nomen dubium )
Pseudeukrohnia pilus Kasatkina, 2002 (uncertain > nomen dubium )
Pseudeukrohnia slabinskii Kasatkina, 2002 (uncertain > nomen dubium )
Spadella angulata Tokioka, 1951
Spadella birostrata Casanova, 1987
Spadella boucheri Casanova & Perez, 2000
Spadella bradshawi Bieri, 1974
Spadella cephaloptera (Busch, 1851)
Spadella equidentata Casanova, 1987
Spadella gaetanoi Alvariño, 1978
Spadella hummelincki Alvariño, 1970 accepted as Paraspadella pulchella (Owre, 1963)
Spadella johnstoni Mawson, 1944 accepted as Paraspadella johnstoni (Mawson, 1944)
Spadella lainezi Casanova, Hernández & Jiménez, 2006
Spadella ledoyeri Casanova, 1986
Spadella legazpichessi Alvariño, 1981 accepted as Paraspadella legazpichessi (Alvariño, 1981)
Spadella moretonensis Johnson & Taylor, 1920
Spadella nana Owre, 1963 accepted as Paraspadella nana (Owre, 1963)
Spadella nunezi Casanova & Moreau, 2004
Spadella pulchella Owre, 1963 accepted as Paraspadella pulchella (Owre, 1963)
Spadella schizoptera Conant, 1895 accepted as Paraspadella schizoptera (Conant, 1895)
Spadella sheardi Mawson, 1944 accepted as Paraspadella sheardi (Mawson, 1944)