Messrs Peach and Home on the Glaciation of Caithness. 339 



List of Organisms from the Caithness Boulder Clay. 

 VERTEBEATA. 

 Piece of fish-bone. 



ANNULOSA. 



Crustacea — 



Portion of shell of Brachyurous Crustacean. 



CiRRIPEDIA — 



Balanus crenatus. 



B. scoticiis {'porcatus). 

 Verruca stromia. 



OSTRACODA — 



Cytherc concinna. 



C. Dnnelmensis (Norman). 

 C. Finmarchia (G. 0. Bars). 

 C. lutea (Muller). 



C. mirahilis (Brady). 



C. villosa (G. 0. Sars). 



C. viridis (Muller). 



Cytheridea papillosa (Bosquet). 



Cythcrideis Bunedincnsis. 



C. suhsjnrcdis. 



Cytherura undata (G. 0. Sars). 



Cytheropteron latissimum (Norman). 



Loxoconcha impressa (Baird). 



Xcstoleberis depressa (G. 0. Sars). 



ECHINODERMATA — 



Echinus neglectns. 

 Spatangus spec. 

 Ophiocomu rosida. 



Annelida — 



Pectinaria ? (sandy tube of). 

 Serpula vermicularis. 



