Order Aspidobranchia Schweigger Aspidobranchida 



Suborder Docoglossa Troschel 1866 Docoglossina 



Suborder Rhipidoglossa Troschel 1866 Rhipidoglossina 



Order Pectinibranchia Cuvier 1817 Pectinibranchida 



Suborder Taenioglossa Troschel 1866 Taenioglossiua 



Suborder Stenoglossa Stenoglossina 



Subclass Euthyneura Spengel 1881 Euthyneuria 



Order Opisthobranchia Milne-Edwards Opisthobranchida 



Suborder Tectibranchia Cuvier 1817 Tectibranchina 



Suborder Nudibranchia Cuvier 1817 Nudibranchina 



Order Pulmonata Ehrenberg 1831 Pulmonatida 



Suborder Basommatophora A. Schmidt Basomtnatophorina 



Suborder Stylommatophora A. Schmidt Stylomatophorina 



Class Scaphopoda Bronn 1862 Scaphopodea 



Class Pelecypoda Goldfuss 1820 Pelecypodea 



Order Protobranchia Protobranchida 



Suborder Solenomyacea Swainson 1840 Solenomyacina 



Suborder Nuculacea Orbigny 1844 Nuculacina 



Order Filibranchia Filibranchida 



Suborder Anomiacea Herrmannsen 1855 Anomiacina 



Suborder Arcacea Latreille 1825 Arcacina 



Suborder Mytilacea Latreille 1825 Mytilacina 



Suborder Pectinacea Reeve 1841 Pectinacina 



Suborder Dimyacea Lamarck 1807 Dimyacina 



Order Eulamellibranchia Eulamellibranchida 



Suborder Ostracea Lamarck 1809 Ostracina 



Suborder Submytilacea Ferussac Submytilacina 



Suborder Tellinacea Lamarck 1819 Tellinacina 



Suborder Veneracea Menke 1828 Veneracina 



Suborder Cardiacea Lamarck 1809 Cardiacina 



Suborder Chamacea Geinitz 1864 Chamacina 



Suborder Myacea Menke 1828 Myacina 



Suborder Adesmacea Blainville 1824 Adesmacina 



Suborder Anatinacea Dall 1895 Anatinacina 



Order Septibranchia Latreille 1825 Septibranchida 



Subphylum Siphonopoda Haan 1825 Siphonopoda 



Class Cephalopoda Cuvier 1798 Cephalopodea 



Order Tetrabranchia Owen 1832 Tetrabranchida 



Suborder Nautiloidea Lamarck 1809 Nautiloidina 



Suborder *Ammonitoidea Haan 1825 *Ammonitina 



Order Dibranchia Owen 1832 Dibranchida 



Suborder Decapoda Leach 1817' Decapodina 



Suborder Octopoda Hasselquist 1850 Octopodina 



Phylum Chordata Chordata 



Division Acraniata \craniata 



Subphylum Tunicata Lamarck 1815 Tunicata 



Class Larvacea Herdman 1882 Larvaca (Copelata) 



Class Ascidiacea Blainville 1825 Ascidiacea 



Order Ptychobranchia Seeliger 1909 Ptychobranchida 



Order Aspiraculata Seeliger 1909 Aspiraculatida 



* Decapoila Latreille 1802 in an order of crustaceans (p. III^. 



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