EXPLANATION OF PLATES 

 Plate 1 



Page 

 Fig, 1. Telephus reedi, new species 19 



Copy of Reed's figure of the cranidium of this Girvan species 

 that he had referred, probaljly erroneously, to T. fractus 

 Barrande; X 3. 

 Whitehouse group, Girvan District, Scotland. 

 2. Telephus species undetermined: 



Copy of Hadding's figure of a small specifically undetermined 

 cranidium of this genus, X 5. Compare T. spiniferus and 

 T. loegelini. 

 Lower Dicellograptus shale near Rost&nga, Sweden. 



3-7. Telephus fractus Barrande 10 



Copies of Barrande's illustrations of this species; all natural 



size except fig. 5, which is X 2. 

 Etage, Di, Lodewitz and Koenigshof, Bohemia. 

 8-10. Telephus jamilandicus, new species 13 



8. Imperfect cranidium, X 1 and X 4, that is provisionally 



distinguished under this name from the other specimens 

 figured and referred, apparently in error by Hadding to 

 T. biciispii Angelin. Copied from Hadding. 



9, 10. Side and anterior views of same, X 4. 



Lower part of Ogygiocaris shale, Jamtland, Sweden. 



11-18. Telephus haddingi, new species 12 



11,12. Different views of free cheeks with eyes, X 9. 



13, 14. Dorsal views of two cranidia, X 2. 



15, 16. Anterior and sideviews of a larger cranidium, X 2. 



17. Imperfect pygidium, with transverse and longitudinal pro- 



files, X 6. 



18. Incomplete thoracic segment, X 5. 



Figures copied from Hadding's paper in which these specimens 

 are referred to T. bicuspis. For copies of Angelin's figures 

 of the Norwegian types of his T. bicusjns see pi. 2, figs. 20, 21. 

 Lower part of Ogygiocaris shale, Jamtland, Sweden. 

 19-23. Telephus granulatus Angelin 11 



Copies of Hadding's figures of Swedish specimens of cranidia 

 and a pygidium referred by him to this species. The two 

 cranidia seem to differ slightly and neither is quite like 

 Angelin's figure of the Norwegian type of the species. For 

 copy of the latter see pi. 2, fig. 13. 

 Upper imrt of Ogygiocaris shale, Jamtland, Sweden. 

 90 



