ILLUSTRATIONS OF TRILOBITES FROM THE SKIDDA 

 SLATES, drawn from the original specimens. By J. G. Goodchild. 



The references within parentheses indicate those fossils referred to in Mr. 

 Postlethwaite's Paper (pp. 71-80) On the "Trilobites of the Skiddaw Slates." 

 The size of each fossil is denoted by the fraction next to the figure.* 



1. Impressiou of Asaphoid Trilobite from "Skiddaw"; redrawn from the 



original specimen figure pi. xii. of Mr. Ward's Memoir. W. Kinsey 

 Dover Collection. 



2. Upper and lower figures, Phacops nicholso7ii. Drawn from the original 



type-specimen figured by Mr. Salter in Quart, yourii. Geol. Soc. vol. xix. 

 Whiteside. Harkness Collection. 

 3 and 4. Drawn from specimens regarded by Mr. Salter as the same species 

 as the last. "Skiddaw." Wyatt Edgell Collection. 



5. Weathered specimen of part of the thorax of a species of? Homalonotits. 



Highside, Bassenthwaite. Harkness Collection. 



6. (B2. ) Randel Crag. W. Kinsey Dover Collection. 



7. Agnostics morea. Drawn from the type-specimen figured by .Salter. 



Q.y.G.S. xix. Ellergill, Milbum. Harkness Collection. 



8. Agucstus sp. Ellergill, Milbum. Harkness Collection. 



9. (A3.) Part of the thorax of a species of? Calymene. W. Kinsey Dover 



Collection. 



10. (C3.) Randel Crag. Mr. Postlethwaite's Collection. 



11. (B4.) Buzzard Crag, North-west of Skidda. W. Kinsey Dover Collection. 



12. ^gliiia sp. Redrawn from the original of figure 3, pi. xii. Mr. Ward's 



Memoir (where it is misprinted as Niobe doveri). Great Knot, Randel 

 Crag. W. Kinsey Dover Collection. 



13. Redrawn from the type-specimen of Niobe doveri, Eth. Screes below 



Randel Crag. W. Kinsey Dover Collection. 



14. (B6.) Beneath White Pike. Keswick Museum. 



15. Mglina sp. "Skiddaw." Wyatt Edgell Collection. 



16. (B5.) Outerside. Cabinet of Mr. Harrison. 



17. (Ai.) Summit of Skidda. Keswick Museum. 



18. (B3. ) Buzzard Crag, North-west of Skidda. W. Kinsey Dover Collection. 



19. Cybele ovata, Eth. Figured for the first time from the type-specimen 



described on p. 112 of Mr. Ward's Memoir. Sandy Beck. 3 miles 

 S. of Cockermouth. Keswick Museum. 



20. (Bi.) Randel Crag. W. Kinsey Dover Collection. 



21. (Ci.) Randel Crag. Mr. Harrison's Collection. 



22. (A2.) Randel Crag. Mr. Postlethwaite's Collection. 



23. (C2. ) Randel Crag. Mr. Harrison's Collection. 



The outlines figured 24-26 represent trilobites that are said to have occurred 

 in the Skidda Slates ; but that could not be obtained for the purpose of the 

 present paper. 



24, Ogygia selwyni ; 25, yEglina bitiodosa ; 26, ^. caliginosa ; 27, Trinu- 

 cleus gibbsii. 



* Further observations on these fossils will shortly be given by Messrs. Postlethwaite and 

 Goodchild, in the Proc: Geol. Assoc. 



