TRILOBITES OF GIRVAN. 



New designation or reference. 

 Asaphus (Isotelus) grayx, sp. nov. 

 Gyclopyge suharmata, sp. nov. 

 Bohemilla scotica, sp. nov. 

 Encrinurus mnltisegmentatus, var. nov. 



trispinosus. 

 Gyhele michelli, sp. nov. 

 Cheirurm Iceisleyensis, Reed. 

 Sphserexochus mirus, var. nov. halclat- 



chiensis. 



Previous designation or reference. 

 Asaphus (Isotelus) gigos, De Kay. 

 Cyclopyge armata (Barr.). 

 Bohemilla sp. 

 Encrinurus multisegmentatus (Portl.). 



Gyhele, cf . aspera (Linnars.) 

 Gheirurus himucronatus (Murch) (pars) 

 Sphserexochiis mirus, Beyr. 



(2) New oe Additional Horizons and Localities for previously described 



Species. 



Dionide richardsoni. Reed, Whiteliouse Group, Shallocli Mill. 



Stygina latifrons (Portl.), Drummuck Group (Starfish Bed), Tliraive Glen. 



Illsenus latus, McCoy, Balclatchie Group, Balclatchie. 



Illsenus portlocki, Salter, Balclatchie Group, Balclatchie ; Dow Hill. 



Dindymene cordai (Eth. & Nich.), Whiteliouse Group, Shalloch Mill. 



Staurocephalus globiceps (Portl.), Balclatchie Group, Dow Hill. 



(3) Steatjgraphical Distribution of New Species and Varieties. 



Balclatchie Group. 



Whitehouse Group. 



Harpes {Eoharpes) youngi. 

 Telephus salterl. 

 Asaphus {Isotelus) grayae. 

 Illsenus peachi. 



„ richardsoni. 

 Cyphaspis jamesoni. 

 Lichas {Amphilichas) ardmillanensis. 

 Encrinurus contentus. 

 Gyhele hellatula, var. halclatchiensis. 



„ michelli. 

 Sphserexochus mirus, var. halclatchiensis. 

 Phacops {Pterygometopus) hunteri. 



Trinucleus albidus. 

 Cyclopyge bumasti. 



„ suharmata. 

 Bohemilla scotica. 

 Acidaspis playfairi. 



