| SYSTEMATIC BIOLOGY |
|
||||
| HOME | SYLLABUS | WEEKLY ASSIGNMENTS | J. SYSTEMATIC BIOLOGY | TAXA OF LIFE | |
| TAXONOMY OF THE EUTROCHOZOA | |||||
These taxa are united by a suite of characters which include spiral cleavage in development and a schizocoelom (for those taxa that are eucoelomate). Because many of the taxa have a distinctive larval form called a trochophore, a ciliated larva form, Halanych et al. (1995) labeled the clade the trochozoa. Their work also confirmed that the Lophophorata was related to to the trochophore clade and made a larger group called the Lophotrochozoa. Please consult The Major Clades of the Animal Kingdom for some views on the relationships of the eucoelomate protostome phyla with each other and with the other phyla of protostomes. This system also includes the lophophore-bearing organisms in the protostomes.
CLASS TURBELLARIA (12 ORDERS)
Amphiscolopus, Convoluta, Haplogonaria, Polychoerus, Catenula, Paracatenula, Dugesia (Planaria), Stenostomum, Haplopharynx, Gnosnesma, Prorhynchus, Macrostomum, Microstomum, Flagellophora, Meara, Nemertoderma, Eurylepta, Hoploplana, Leptoplana, Notoplana, Planocera, Prostheceraeus, Pseudoceros, Stylochus, Thysanozoon, Plagiostomum, Urostoma, Proplicastoma, Nemertoplana, Octoplana, Taboata, Callastoma, Graffilla, Pterastricola, Kytorhynchus, Mesostoma, Typl[hlorhynchus, Cheliplana, Cystiplex, Gnathorhynchus, Gyratrix, Temnocephala, Bdelloura, Bipalium, Crenobia, Geoplana, Polycelis, Procotyla.
CLASS MONOGENEA (2 SUBCLASSES, EACH WITH A SINGLE ORDER)
SUBCLASS MONOPISTHOCOTYLEA
Polystoma, Gyrodactylus.
SUBCLASS POLYOPISOTHOCOTYLEA
Diplozoon
CLASS TREMATODA (6 ORDERS DISTRIBUTED THROUGH 2 SUBCLASSES)
SUBCLASS DIGENEA
Echinostoma, Fasciola, Microphallus, Opisthorchis (Clonorchis), Sanguinicola, Schistosoma.
CLASS CESTODA (2 SUBCLASSES)
SUBCLASS CESTODARIA (2 ORDERS)
Amphilina, Gyrocotyl, Gyrometra.
SUBCLASS EUCESTODA (12 ORDERS)
Diphyllobothrium, Taenia, Dipylidium, Hymenolepis, Moniezia, Echinococcus.
CLASS APLACOPHORA (2 SUBCLASSES, EACH WITH A SINGLE ORDER)
Subclass Chaetodermomorpha
Chaetoderma, Falcidens, Limifossor, Psilodens, Scutopus.
Subclass Neomeniomorpha
Chevroderma, Dondersia, Epimenia, Kruppomenia, Neomenia, Proneomenia, Pruvotina, Rhopalomenia, Spengalomenia.
CLASS MONOPLACOPHORA (1 ORDER)
Laevipilina, Micropilina, Monoplacophorus, Neopilina, Rokopella, Vema.
CLASS POLYPLACOPHORA (3 ORDERS)
Chloriplax, Lepidochiton, Lepidopleurus, Oldroydia.
Callistochiton, Chaetopleura, Ischnochiton, Katharina, Lepidozona, Mopalia, Placiphorella, Schizoplax, Tonicella.
Acanthochitona, Chitona, Cryptochiton, Cryptoplax.
CLASS GASTROPODA (15 ORDERS IN 3 SUBCLASSES)
Subclass Prosobranchia
Perotrochus, Pleurotomaria, Scissurella, Haliotis, Diodora, Fissurella, Lucapinella, Puncturella, Acamea, Collistella, Lottia, Calliostoma, Margatites, Patella, Tegula, Trochus, Astrea, Nerita, Theodoxus, Alcidia, Helicinia, Crepidula.
Hydrobia, Viviparus, Littorina, Turitella, Caecum, Serpulorbis, Tripsycha, Vermetus, Vermicularia, Cerithium, Liocerithium, Cerithidea, Strombus, Epitonium, Janthina, Hipponix, Capulus, Calyptraea, Crepidula, Crucibulum, Carinaria, Natica, Polinices, Erato, Trivia, Cypraea, Jenneria, Ovula, Simnia, Malea, Cassis, Ficus.
Buccinum, Cantharus, Macron, Metula, Anachis, Columbella, Mitrella, Nassarina, Pyrene, Strombina, Coralliophila, Latiaxis, Fasciolaria, Fusinus, Leucozonia, Troschellia, Harpa, Garnula, Melongena, Mitra, Subcancilla, Cerastoma, Hexaplex, Murex, Phyllonotus, Pteropurpura, Pterynotus, Acanthina, Morula, Neorapana, Nucella, Purpura, Thais, Nassarius, Cymbium, Lyria, Voluta, Admete, Cancellaria, Conus, Crassispira,Terebra.
Subclass Opisthobranchia:
Acochlidium, Unela.
Acteon, Aglaja, Bulla, Chelidonura, Haminoea, Navanax, Retusa, Rictaxis, Scaphander.
Ilbia, Runcina
Berethellina, Elysia, Oxynoe, Tridachia.
Aplysia, Dolabella, Stylocheilus.
Clio, Limacina.
Clione.
Berthellina, Gymnotoplax, Pleurobranchus, Tylodina.
Acanthodoris, Aegires, Aeolidia, Aeolis, Armina, Cavolina, Chromodoris, Corambe, Coryphella, Dendrodoris, Dendronotus, Diaulula, Doris, Embletonia, Fiona, Glaucus, Hermisenda, Hexabranchus, Hopkinsia, Limacina, Janolus, Phidiana, Philine, Phyllidia, Platydoris, Pneumoderma, Polycera, Rostanga, Scyllaea, Tambja, Trinschesia
Subclass Pulmonata:
Cassidula, Ellobium, Otina.
Bulinus, Carychium, Chilina, Lanx, Physa, Planorbis, Polygyra, Siphonaria, Trimusculus.
Achatina, Arion, Bulimulus, Cepaea, Haplotrema, Helix, Liguus, Limax, Megaspira, Oreohelix, Pupilla, Rachis, Succinea, Vertigo.
Onchidella, Onchidium, Rhodope.
CLASS BIVALVIA (ALSO CALLED PELECYPODA OR LAMELLIBRANCHIATA; 10 ORDERS IN 3 SUBCLASSES)
Subclass Protobranchia:
Malletia, Nucula, Yoldia.
Solemya.
Subclass Lamellibranchia:
Adula, Brachydontes, Lithophaga, Modiolus, Mytilus, Anadara, Arca, Barbatia, Glycymeris, Crassostrea, Ostrea, Pinctada, Pteria, Malleus, Atrina, Pinna, Lima, Chlamys, Lyropecten, Pecten, Spondylus, Anomia, Pododesmus.
Clinocardium, Laevicardium, Trachycardium, Cardita, Tridacna, Mactra, Ensis, Solen, Florimetis, Macoma, Tellina, Leptomya, Semele, Donax, Chione, Dosinia, Pitar, Protothaca, Tivela, Corbicula, Cardium, Mercenaria, Unio, Lampsilis, Anodonta, Ensis.
Barnea, Chaceia, Martesia, Pholas, Bankia, Toredo, Corbula, Mya.
Subclass Anomalodesmata:
Cuspidaria, Poromya, Pandora.
CLASS SCAPHOPODA (2 ORDERS)
Dentalium, Fustiaria, Laevidentalium, Pulsellum, Annulipulsellum, Cadulus, Gadila.
CLASS CEPHALOPODA (5 ORDERS IN 2 SUBCLASSES)
Subclass Nautiloidea (also called Tetrabranchiata):
Nautilus.
Subclass Coleoidea (also called Dibranchiata):
Rossia, Sepia, Spirula.
Architeuthis, Bathyteuthis, Chiroteuthis, Doryteuthis, Dosidiscus, Gonatus, Histioteuthis, Illex, Loligo, Lycoteuthis, Octopoteuthis, Ommastraphes.
Argonauta, Octopus, Opisthoteuchis, Stauroteuthis.
Vampyroteuthis.
CLASS POLYCHAETA (25 ORDERS)
Abarenicola, Arenicola, Capitella, Notomastus, Clymenella, Maldane, Praxiella.
Chaetopterus, Mesochaetopterus, Phylochaetopteris
Cirratulus, Cirriformia, Dodecaceria.
Arabella, Drilonereis, Eunice, Marphysa, Palola, Ichthyotomus, Lumbrinerides, Ninoe, Diopatra, Onuphis, Paradiopatra.
Asteriomyzostomum, Cystimyzostomum, Myzostoma.
Armandia, Euzonus, Ophelia, Polyphthalmus.
Polyphysia.
Polydora, Scolelepis, Spio, Spiophanes.
Orbinia, Scoloplos.
Owenia.
Alciopa, Alciopina, Torrea, Vanadis, Aphrodita, Pontogenia, Glycera, Glycerella, Hemipodus, Aglaphamus, Micronephtyes, Nephtyes, Cheilonereis, Dendronereis, Neanthes, Nereis, Platynereis, Eteone, Eulalia, Notophyllum, Phyllodoce, Arctonoe, Gorgoniapolynoe, Eulagisca, Halosydna, Harmothoe, Hesperonoe, Polynoa, Autolytus, Brania, Odontosyllis, Trypanosyllis, Tomopteris.
Bispira, Eudistylia, Fabricia, Myxicola, Sabella, Schizobranchia, Filograna, Hydroides, Serpula, Spirobranchus, Circeis, Paralaeospira, Spirorbis.
Amphictene, Pectinaria, Petta, Phragmatopoma, Sabellaria, Amphitrite, Pista, Polycirrus, Terrebella, Thelepus,
Manayunkia, Polygordius.
CLASS CLITELLATA (7 ORDERS IN 2 SUBCLASSES)
Subclass Oligochaeta (4 ORDERS)
Aeolosoma.
Lamprodillus, Rhynchelmis, Stylodrilus, Styloscolex, Trichodrylus, Desmogaster, Moniligaster.
Alma, Callidrilus, Megascolides, Megascolex, Pheretima, Inanidrillus, Olavius, Branchiura, Clitellio, Limnodrilus, Tubifex, Branchiodrilus, Dero, Ripistes, Slavina, Stylaria, Allolobophora, Diporodrilus, Eisenia, Lumbricus
Nais, Enchytraeus, Allolobophora.
Subclass Hirudinoidea (3 ORDERS)
Acanthobdella.
Branchiobdella, Cambarinicola, Stephanodrilus.
Erpobdella, Glossophonia, Haemapsida, Hirudo, Oxobranchus, Piscicola, Pontobdella, Placobdella, , Macrobdella, Haemopis, Dina.
CLASS PERVIATA (1 ORDER)
Birstenia, Heptabrachia, Diplobrachia, Lamellissbella, Oligobrachia, Polybrachia, Siboglinum, Spirobrachia, Zenkevitchiana.
CLASS OBDURATA (ALSO CALLED VESTMENTIFERA; 1 ORDER)
Escarpia, Lamellabrachia, Oasisia, Ridgeia, Riftia, Tevnia.
CLASS ECHIURIDA (3 ORDERS)
Achaetobonellia, Bonellia, Bruunella, Echiurus, Listriolobus, Thalassema, Tatjanellia
Urechis.
Ikeda.
CLASS SIPUNCULIDA (1 ORDER)
Themiste, Onchnesoma, Phascolion, Golfingia, Nephasoma, Thysanocardia.
Phascolopsis, Siphonomecus, Siphonosoma, Sipunculus, Xenosiphon.
CLASS PHASCOLOSOMIDA (1 ORDER)
Aspidosiphon, Cloeosiphon, Lithacrosiphon.
Antillesoma, Apionsoma, Phascolosoma, Dendrostomum.
CLASS ANOPLA (2 ORDERS)
Carinoma, Hubrechtella, Tubulanus, Cepahalothrix, Baseodiscus, Lineus, Cerebratulus, Micrura, Paralineus.
CLASS ENOPLA (2 ORDERS)
Annulonemertes, Carcinonemertes, Emplectonema, Geonemertes, Paranemertes, Prostoma, Amphiporus, Hubrechtonemertes, Nectonemertes, Pelagonemertes, Malacobdella.
CLASS RHOMBOZOIDA (2 ORDERS)
Conocyema, Dicyema, Dicyemennea, Microcyema, Pseudicyema.
CLASS ORTHONECTIDA (1 ORDER).
Ciliocincta, Rhopalura, Stoecharthrum.
This page is maintained by Jack R. Holt. Last modified: 04/22/08.