Acantholithium stellatum Haeckel, 1887 (original description)
Acanthometra echinoides Haeckel, 1862 accepted as Acanthonia echinoides (Claparède & Lachmann, 1858) Haeckel, 1881 (basis of record)
Acanthometra pallida Claparède & Lachmann, 1858 accepted as Acanthostaurus pallidus (Claparède & Lachmann, 1858) Haeckel, 1862 (basis of record)
Acanthometridae Haeckel, 1887 (original description)
Acanthometron Haeckel, 1887 (original description)
Acanthonia Haeckel, 1881 (basis of record)
Acanthonia echinoides (Claparède & Lachmann, 1858) Haeckel, 1881 (basis of record)
Acanthonida (basis of record)
Acanthosphaera castanea Haeckel, 1887 (original description)
Acanthosphaera tenuis Haeckel, 1887 (original description)
Acanthostaurus Haeckel, 1862 (basis of record)
Acanthostaurus pallidus (Claparède & Lachmann, 1858) Haeckel, 1862 (basis of record)
Acrosphaera collina Haeckel, 1887 accepted as Solenosphaera collina (original description)
Actinomma arcadophorum Haeckel, 1887 (original description)
Actinomma capillaceum Haeckel, 1887 (original description)
Actissa prototypus Haeckel, 1887 (original description)
Amphilithidae Haeckel, 1887 (original description)
Amphilithium clavarium Haeckel, 1887 (original description)
Amphiplecta acrostoma Haeckel, 1887 (original description)
Amphirhopalum ypsilon Haeckel, 1887 (original description)
Amphitholus acanthometra Haeckel, 1887 (original description)
Anthocyrtium anthemis Haeckel, 1887 (original description)
Arachnocalpis ellipsoides Haeckel, 1887 (original description)
Astracanthidae Haeckel, 1887 (original description)
Astrolithidae Haeckel, 1887 (original description)
Astrolonchidae Haeckel, 1881 (basis of record)
Astrosphaera hexagonalis Haeckel, 1887 (original description)
Aulacanthidae Haeckel, 1887 (original description)
Aulosphaeridae Haeckel, 1887 (original description)
Axoprunum Haeckel, 1887 (original description)
Axoprunum stauraxonium Haeckel, 1887 (original description)
Botryopyle dictyocephalus Haeckel, 1887 (original description)
Buccinosphaera invaginata Haeckel, 1887 (original description)
Callimitra annae Haeckel, 1887 accepted as Callimitra carolotae Haeckel, 1887 (original description)
Callimitra carolotae Haeckel, 1887 (original description)
Callimitra emmae Haeckel, 1887 (original description)
Calocyclas amicae Haeckel, 1887 accepted as Theocorythium trachelium (Ehrenberg) Nigrini, 1967 (original description)
Calocyclas monumentum Haeckel, 1887 (original description)
Cannosphaeridae Haeckel, 1887 (original description)
Cantharospyris platybursa Haeckel, 1887 (original description)
Carpocanarium Haeckel, 1887 (original description)
Carpocanistrum Haeckel, 1887 (original description)
Carpocanistrum cephalum Haeckel, 1887 (original description)
Carpocanistrum flosculum Haeckel, 1887 (original description)
Carpocanium Ehrenberg, 1847 (basis of record)
Carposphaera capillacea Haeckel, 1887 (original description)
Carposphaera corypha Haeckel, 1887 (original description)
Castanellidae Haeckel, 1887 (original description)
Cenosphaera coronata Haeckel, 1887 (original description)
Cenosphaera cristata Haeckel, 1887 (original description)
Cenosphaera favosa Haeckel, 1887 (original description)
Centrocubus cladostylus Haeckel, 1887 (original description)
Centrocubus octostylus Haeckel, 1887 (original description)
Cephalospyris cancellata Haeckel, 1887 (original description)
Challengeria Haeckel, 1887 accepted as Protocystis Wallich, 1862 (original description)
Challengeria xiphodon Haeckel, 1887 accepted as Protocystis xiphodon (Haeckel, 1887) (original description)
Choenicosphaera murrayana Haeckel, 1887 accepted as Acrosphaera murrayana (Haeckel) Hilmers, 1906 (original description)
Circoporidae Haeckel, 1887 (original description)
Circoporus Haeckel, 1879 (basis of record)
Cladococcus abietinus Haeckel, 1887 (original description)
Cladococcus scoparius Haeckel, 1887 (original description)
Cladoscenium ancoratum Haeckel, 1887 (original description)
Clathrocanium diadema Haeckel, 1887 (original description)
Clathrocircus stapedius Haeckel, 1887 accepted as Corythospyris stapedius (Haeckel) Goll, 1978 (original description)
Clathrocorys giltschii Haeckel, 1887 (original description)
Clathrocorys murrayi Haeckel, 1887 (original description)
Clathrocorys teuscheri Haeckel, 1887 (original description)
Clathrocyclas cassiopeiae Haeckel, 1887 (original description)
Clathromitra pentacantha Haeckel, 1887 (original description)
Clathromitra pterophormis Haeckel, 1887 (original description)
Clathrosphaera arachnoides Haeckel, 1887 (original description)
Coelodendridae Haeckel, 1887 (original description)
Collophidium Haeckel, 1887 (original description)
Collosphaera polygona Haeckel, 1887 (original description)
Collosphaera tuberosa Haeckel, 1887 (original description)
Collozoum amoeboides Haeckel, 1887 (original description)
Collozoum ellipsoides Haeckel, 1887 (original description)
Collozoum ovatum Haeckel, 1887 (original description)
Collozoum pelagicum Haeckel, 1887 (original description)
Collozoum serpentinum Haeckel, 1887 accepted as Collophidium serpentinum (Haeckel, 1887) (original description)
Collozoum vermiforme Haeckel, 1887 (original description)
Concharidae Haeckel, 1887 (original description)
Corocalyptra Haeckel, 1887 (original description)
Corocalyptra elisabethae Haeckel, 1887 (original description)
Cromyechinus icosacanthus Haeckel, 1887 (original description)
Cromyomma circumtextum Haeckel, 1887 (original description)
Cromyomma villosum Haeckel, 1887 (original description)
Cubotholus octoceras Haeckel, 1887 (original description)
Cyrtolagena laguncula Haeckel, 1887 (original description)
Cyrtopera laguncula Haeckel, 1887 accepted as Cyrtolagena laguncula Haeckel, 1887 (original description)
Dictyoceras mellitta Haeckel, 1887 accepted as Lipmanella bombus Haeckel, 1887 (original description)
Dictyocodon palladius Haeckel, 1887 (original description)
Diploconidae Haeckel, 1887 (original description)
Diploconus Haeckel, 1862 (basis of record)
Diploconus fasces Haeckel, 1862 (basis of record)
Discopyle elliptica Haeckel, 1887 (original description)
Dorataspidae Haeckel, 1887 (original description)
Dorataspis Haeckel, 1860 (basis of record)
Dorataspis gladiata Haeckel, 1887 (original description)
Druppatractus ostracion Haeckel, 1887 accepted as Stylatractus ostracion (Haeckel, 1887) (original description)

West Coast of Norway for Acanthonia echinoides (Claparède & Lachmann, 1858) Haeckel, 1881 
West Coast of Norway for Acanthostaurus pallidus (Claparède & Lachmann, 1858) Haeckel, 1862 

 Dimensions

 for Acanthostaurus pallidus (Claparède & Lachmann, 1858) Haeckel, 1862

Length of the four main spines 0.12 to 0.2, of the sixteen others 0.04 to 0.08; breadth of the former 0.01, of the ... [details]

 Distribution

 for Acanthonia echinoides (Claparède & Lachmann, 1858) Haeckel, 1881

North Atlantic, west coast of Norway (Claparède et Lachmann); Færöe Channel (Gulf Stream), John Murray, surface [details]

 Distribution

 for Acanthostaurus pallidus (Claparède & Lachmann, 1858) Haeckel, 1862

North Atlantic, west coast of Norway, Claparède; Færöe Channel, John Murray [details]