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ANNELroA-ARTHROPODA 



Phylum ANNELIDA (=Annulata) 



Class POLYCHAETA^ 



Amphinome ; Aphrodite ; Phyllodoce ; Tomopteris; 

 Syllis; Nereis; Nephthys; Glycera ( = Rhynchobolus) ; 

 Eunice; Scoloplos; Polydora; Magelona; 

 Chaetopterus; Ophelia; Arenicola (lugworm) ; 

 Cirratidus; Capitella; Maldane; Owenia; Pectinaria; 

 Ampharete; Terebella; Sabella {= Spirographis) 

 (peacock fan worm) ; Serpida 



Class MYZOSTOMARIA 

 Class OLIGOCHAETA'' 



Class HIRUDINEA (leeches) 



Myzostoma 



Tubifex; Clitellio; Stylaria; Chaetogaster ; 

 Enchytraeus (white worm); Pelo scale x; Lumbricus, 

 Pheretima, Allolobophora, Eisenia (earthworms) 



Order ACANTHOBDELLIDA 



Acanthobdella 

 Order RHYNCHOBDELLroA 



Glossiphonia; Helobdella; Piscicola; Pontobdella; 

 Branchellion 

 Order GNATHOBDELLIDA 



Hirudo; Haemopis (=Aulastoma); Macrobdella; 

 Haemadipsa; Erpobdella {= Herpobdella, Nephelis); 

 Trocheta (amphibious leech); Dina 



Class ARCfflANNELroA 



Saccocirrus; Dinophilus; Polygordius; Protodrilus; 

 Nerilla 



Phylum ARTHROPODA 



Class ONYCHOPHORA 

 Class PAUROPODA 



Peripatus; Peripatopsis 

 Pauropus 



Class DIPLOPODA (millipedes) 



Sub-class PSELAPHOGNATHA 



Order POLYXENIDA 



( = SCHIZOCEPHALA, PeNICILLATA) 



Polyxenus; Lophoproctus 



The Polychaeta, for which no acceptable ordinal classification exists, are sometimes divided for con- 

 venience into sub-classes Errantia (the first nine genera) and Sedentaria (the last fifteen genera). 



* No satisfactory ordinal classification is available for the Oligochaeta, though the first six genera are 

 sometimes assigned to order Limicolae and the last four to order Terricolae. 



