96 BIOLOGICAL RELATIONS. 



Phacopidae — Phacops, Dalmanites. 

 Proetidfe. — CypJiaspis, Proetus, Fhillipsia. 

 AgnostidaB.* 

 Trinucleidse.* 



( 9 ) XiPHOSURA.* 



(10) euripterida.* 



(11) Amphipoda.* 



(12) ISOPODA.* 



(13) Stomapoda.* 



(14) schizopoda.* 



(15) CUMACEA.* 



(16) Decapoda. 



Class II. — Arachnida.* 



Class III Myriapoda.* 



Class IV.— Insect^.* 



Subkingdom VII.— MOLLUSC A. 

 Class I. — Bryozoa. 



( 1 ) PhTLACTOL^E VI ATA.* 



(2) Gymnolcemata. Crisiidge.* 



Diastoporidae.* 



Tubuliporidse.* 



Bntalophoridse.* 



Idmonidae.* 



Licheaoporidae,* 



Frondiporidae.* 



Heteroporidae.* 



Fenestellidae — 



Fenestella, Archimedes, Lyropora. 

 Acanthocladidae — Setopora. 

 Ptilodictyonidae — Stictoporella. 

 Strictoporidae.* 

 Cystodictyonidae.* 

 Ceramoporidae.* 



Rhabdomesonidae. — Rhombopora. 

 Catenicellidte.* 



