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OEDERS AND CLASSES OF NEMAS 



Phylum NE MATES 

 (Nematoidea sensu restricto) 



Subphylum ALAIMIA* 

 Class Alaimia 

 Subclass Manitinia 



1. Order 



Subclass Kinetinia 



2. Order 



Subphylum LAIMIA 



Class Anonchia 

 Subclass Anodontia 



3. Order 



4. Order 



5. Order. . . . 

 Subclass Odontia 



6. Order 



7. Order 



Class Onchia 



Subclass Homonchia 



8. Order 



9. Order 



10, Order 



11. Order 



Subclass Heteronchia 



19. Order 



13. Order... 



Anglicised 



Litini a Litinian forms ; the Litinia 



Bolbinia Bolbinian forms; the Bolbinia 



Cytolaimia Cytolaimian forms; the Cytolaims 

 Isolaimia Isolaimian forms; the Isolaims 

 Polylaimia Polylaimian forms ; the Polylaims 



. . Apodonlia Apodontian forms; the Apodonts 



. . Synodontia Synodontian forms ; the Synodonts 



Synonchia Synonchian forms; the Synonchs 



Mesonchia Mesonchian forms; the Mesonchs 



Aponchia Aponchian forms; the Aponchs 



Triplonchia Triplonchian forms; the Triplonchs 



Axonchia Axonchian forms; the Axonchs 



Anaxonchia Anaxonchian forms; the Anaxonchs 



*The names are the plurals of latinised Greek diminutives of the words, 'to, 

 \aifji6o-, 'byx<r> with descriptive prefixes. 



ALAIMIA 



Nemas without distinct pharynx 



Nemas devoid of pharynx may be conceived to be so either because 

 they have never developed a pharynx or have evolved ("deteriorated") 

 from forms having a pharynx. In the latter case, the group ALAIMIA 

 may contain obscured equivalents of the subdivisions of the LAIMIA, 

 the nemas with pharynx. It may therefore be possible to subdivide 

 the ALAIMIA more fully after these forms, many of which are para- 

 sitic, have been further considered in their broad relationships. In 

 this article only two subdivisions are suggested, of more or less super- 

 ordinal rank, the Litinia, having a simple oesophagus without bulb or 

 swelling, and the Bolbinia, having an oesophagus with a posterior or 

 median swelling, or both. 



