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SUPPLEMENTARY APPENDIX. 



Phacops Glockeri 



intercostatus 

 spinifer 

 Reussii 

 Bi'onnii 

 socialis 

 Hawlei 

 elongatus 

 'dubius 

 Philiipsii 

 intermedius 

 breviceps 



Phacops laivigatus 



Sao hirsuta 

 Staürocephalus Murchisoni 



Trinucleus Goldfussii 



Bucklandii 



Trilobites heteroclytus 



orbitatiis 



desideratus 



decipiens 



Lindaueri. 



