SILURIAN OE THE LAKE-DISTRICT, 873 



Sphaerexochus boops, Salt Applethwaite Common ; Coniston. 



Arnphion, n. sp Troutbeck. 



Cybele verrucosa, Balm. .., Horton; Kavenstonedale ; Troutbeck 



Coniston. 



C. rugosa, PortL '. Coniston. 



Encrinurus multiplicatus, Salt Barking, Dent. 



E. multisegmentatus Helm Gill. 



Cheirurus bimucronatus, Murch Near Dent. 



Phacops macroura, Sjogren Long Sleddale ; Style End ; Apple- 

 thwaite Common ; Coniston. 



Ph. conophthalmus, Bo&cJc Near Dent. 



Ph. nitidus, Salt Helm Gill. 



Calymene senaria, C'onr Horton; High Haume; Applethwaite 



Common; Coniston. 



Ilhenus Bowmanni, Salt Keisley. 



I. Eosenbergi, Eichw Horton; Sunny Brow; Coniston. 



Eemopleurides « Near Dent. 



Mollusca. 



Lingula ovata, M' Coy Applethwaite Common ; Coniston. 



Trematis corona, Salt Pusgill; Dufton. 



Bhynchonella, sp Kavenstonedale. 



Orthis Actonise, Sow Ingleton ; Horton; Thornton; Apple- 

 thwaite Common, &c. 



O. bidens, Salt. MS Helm Gill, Dent. 



O. calligramma, var. plicata, Salt. ... Horton. 



O. calligramma, var. virgata, Salt. ... Applethwaite Common; Coniston. 



O. calligramma, var. crispa, M'Coy... Helm Gill, Dent. 



O. flabellulum, Sow Applethwaite Common. 



O. porcata, M'Coy Coniston. 



O. biforata, Schloth Troutbeck ; Coniston. 



O. insularis, Eichw Coniston. 



O. vespertilio, Sow Coniston. 



Strophomena antiquata, Sow Coniston. 



S. corrugata, Fortl Keisley. 



S. depressa, Balm Everywhere. 



S. deltoidea, Conr Coniston. 



S. pecten, Linn Kavenstonedale ; Applethwaite Com- 

 mon; Coniston. 



Leptaena transversalis, Balm Coniston. 



L. quinquecostata, M" Coy Near Dent. 



Orthonotus ? Applethwaite Common. 



Holopella Troutbeck Hundreds. 



Holopea Troutbeck Hundreds. 



Orthoceras vagans, Salt Troutbeck ; Coniston ; Dufton. 



O. sp., like Troostii Troutbeck. 



Cyrtoceras sonax, Salt Helm Gill. 



Lituites cornu-arietis, Sow Troutbeck; Coniston. 



2. Ashgill Shales. 



The beds for which this name is adopted — from a stream near 

 Coniston, where the beds are very well developed and have been 

 spoken of by Salter (Cat. Cambr. & Sil. Eoss. of Woodw. Mus. p. 72) 

 under this name— have been, as already stated, separated locally by 

 Prof. Hughes in the country to the east of the Lune, and occur, 

 more or less developed, throughout the Lake-district. 



On comparing specimens of this formation from the Windermere- 



