LIST OF PLATjES 



I. Anarrkichas minor. 



II. Forms of Echinus esculentus M\&'Goniaster plirygianus. 



III. Salrno fario from I slay. 



IV. Sal nio fario from Stirlingshire. 

 V. Sal mo fario from Loch Enoch. 



VI. Lichomolgus aberdonensis, n. sp. 

 VII. Lichomolgus arenicolus. 



VIII. Notops pygmceus, n. sp. ; Copens ehrenbergii ; Triarthra 

 terminalis. 



