PLATE XIV. 



<'io. Page. 



Lichas (Corydocephalus) geikiei, Nicholson and Etheridge. 96. 



1. Pygidium. x 5. Starfish Bed, Thraive Glen. Mrs. Gray's Collection. 



Lichas (Corydocephalus) cf. wesenbergensis, Schmidt. 



2. Pygidium. x 5. Dow Hill. Sedgwick Museum. 



Lichas (Corydocephalus) scutalis, Salter. 



3. Glabella, x 3. Newlands. Mrs. Gray's Collection. 



4. Pygidium. x 3. Same locality and Collection. 



Lichas (Platylichas) grayi, var. nov. scoticus. 100. 



5. Head-shield. X 2|. Mulloch Hill. Mrs. Gray's Collection. 

 ha. Front view of same specimen, x 2|. 



6. Ditto, another specimen, x 3. Same locality and Collection. 

 6a. Side view of same specimen, x 3. 



7. Hypostome. X 2L Rough Neuk, Mulloch Hill. Same Collection. 



8. Pygidium. x 2. Mulloch Hill. Museum of Practical Geology. 



9. Ditto, x 3. Craigens. Mrs. Gray's Collection. 



10. Imperfect head-shield, doubtfully referred to this species, x 1|. Camregan Wood. 

 Mrs. Gray's Collection. 



Lichas (Platylichas) laxatus, MCoy. 102. 



11. Imperfect thorax and pygidium. X IV. Thraive Glen. Mrs. Gray's Collection. 



12. Hypostome attached to same individual and in position, x 2. 



13. Imperfect individual, showing head and thorax, x 1.1. Same locality and Collection. 

 13a. Eye of same specimen, side view, x 4. 



136. Portion of surface of same eye, showing lenses, x 20. 



Lichas (Metopolichas) bulbiceps, Phillips MS. 104. 



14. Head-shield, x 3. Starfish Bed, Thraive Glen. Mrs. Gray's Collection. 



Lichas (Metopolichas) air. marginatus, Lindstrom. 104. 



15. Head-shield, x 1|. Woodland Point. Mrs. Gray's Collection. 



16. Hypostome, probably belonging to this species, x 2. Same locality and Collection. 



