Subphylum SYMPLASMA

Class HEXACTINELLIDA

Subclass AMPHIDISCOPHORA

Order AMPHIDISCOSIDA

Family Hyalonematidae

Hyalonema ovuliferum Schulze 1899

            South Alaska;  deep

Hyalonema populiferum Schulze 1899   [SEM]

            BC,  Southern California;  deep *West of Skidegate Inlet, BC: WCA

Family Monoraphididae

Family Pheronematidae

Poliopogon mendocino Reiswig 1999

            NCal; deep

Subclass HEXASTEROPHORA

Order FIELDINGIDA

Family Fieldingidae

Order LYSSACINOSIDA  [Lyssacinosa]

Family Euplectellidae

Holascus undulatus Schulze 1899

            NW Pacific, S Alaska; deep

Nubicaulus careyi Reiswig 1999

            N Cal.; deep

Family Leucopsacasidae [Placopegmatidae]

Leucopsacus scoliodocus Ijima 1903

            BC,  W Pacific, N Atlantic *Jervis Inlet, BC: H. Reiswig

Placopegma species? Schulze 1899

            Washington; deep

Family Rossellidae [Lanuginellidae, in part]

Acanthascus new species

      BC-Washington; shallow N to Burke Channel, BC: WCA

Acanthascus cf. platei Schulze 1899

            BC, S California; shallow; *Mittlenatch I, BC: WCA

Aulosaccus ijimae  (Schulze 1899)

            S Alaska; deep; [Calycosaccus]

Bathydoris cf. echinatus

            Wash, deep *Axial Seamount, Juan de Fuca Ridge: WCA

Caulophacus species

            Oreg-Wash; deep

Rhabdocalyptus asper Schulze 1899

            Oregon, S California; deep *off Oregon:WCA [Acanthascus]

Rhabdocalyptus dawsoni (Lambe 1893)  [SEM]

            Alaska-S California; shallow; [Bathydorus, Acanthascus]

Rhabdocalyptus mirabilis Schulze 1899

      Alaska; deep [Acanthascus]

Rhabdocalyptus tenuis Schulze 1899

            Wash; deep;  [Acanthosaccus, Acanthascus]

Staurocalyptus dowlingi (Lambe 1894) [SEM]

            Alaska-S California; shallow; [Rhabdocalyptus, Acanthascus]

Staurocalyptus fasciculatus Schulze 1899

      Washington; deep;  *Cobb Seamount, Washington: WCA  [Acanthascus]

Staurocalyptus solidus Schulze 1899

            BC-S California;  deep;  *off Dixon Entrance, BC: WCA [Acanthascus]

Staurocalyptus species cf. roeperi Schulze 1886

            Washington;  deep;  *Juan de Fuca Ridge, Washington: WCA/H. Reiswig                 [Acanthascus]

Order HEXACTINOSIDA  [Hexactinosa]

Family Aphrocallistidae

Aphrocallistes vastus Schulze 1887  [SEM]

            NW Pacific-Bering Sea-Alaska-Mexico;  shallow; [A. whiteavesianus                     Lamb 1893]

Heterochone calyx (Schulze 1887)  [SEM]

            Japan-Bering Sea-Alaska-S California;  shallow;  [Chonelasma]

Heterochone tenerum (Schulze 1887)           

            Bering Sea,  S California;  shallow;  [Heterochone]

Family Craticulariiidae

Family Cribrospongiidae

Family  Dactylocalycidae

Family Euretidae [Coscinosporidae;  Chonelasmidae]

?Lefroyella species

            BC;  deep:  *Explorer Ridge, BC: WCA

Family Farreidae

Asceptrulum axialis Duplessis & Reiswig 2004

            Oreg., deep

Farrea aculeata Schulze 1899

            Washington; deep

Farrea occa Bowerbank 1862

            BC;  “Cosmopolitan in deep water”;  *Explorer Seamount, BC:WCA

Family Tretodictyidae

Order AULOCLYCOIDA

Family Aulocalycidae

Family Uncinateridae

Order LYCHNISCOSIDA (Lychiniscosa;  Dictyonina, part)

Family  Aulocystidae (Diapleuridae)