Pachastrellidae Carter, 1875
Pachastrella abyssi Schmidt, 1870
Pachastrella caliculata Kirkpatrick, 1902
Pachastrella chuni Lendenfeld, 1907
Pachastrella cribrum Lebwohl, 1914
Pachastrella dilifera de Laubenfels, 1934
Pachastrella echinorhabda Pulitzer-Finali, 1972
Pachastrella fusca Lebwohl, 1914
Pachastrella incrustata Bergquist, 1968
Pachastrella isorrhopa Kirkpatrick, 1902
Pachastrella loricata (Lebwohl, 1914)
Pachastrella monilifera Schmidt, 1868
Pachastrella multipora Dickinson, 1945
Pachastrella nodulosa Cárdenas & Rapp, 2012
Pachastrella ovisternata Lendenfeld, 1894
Pachastrella scrobiculosa Lebwohl, 1914