Plate VIII. 



Page 



Fig. 1. Idnnirofoi'cJtin Htcli/ii'l<Jcnsis SCFII CIII.K i, var. (imjustata nov. vnr. . . "1-1 



Fig. -2. ^pirifi'i- imiili-xtitx 1 1 A i i. var. striatissitnus nov. var 2li 



Kit,'. '!. UnriiHtlns septentrional is nov. sp -2-2 



Fig. 4-. S/iirifer vanuxenii HAI.I., var. pruynosticn SCIIUCIICIIT 27 



Fig. ."). .!/////"( ri'firnlnris LINN 23 



Kii;. f'i. J'liTini'd <!'. avicidoidea HALI 28 



Fig. 7. .Yuni/fi I?) sp 29 



Fig. 8. Grminmisia(?) triangulata nov. sp 28 



Fig. 9. Huniinfdinit (?) sp '11 



Fig. 10. Lo.ronenia fitclii HALL 31 



Kit;. II. H<il<>]H>a sp ' 31 



Fig. 1-2. H<n-nn>t<iin (?) sp 30 



l-'iu'. !'!. l-'.iicriiinntfi ^\> 34- 



Fig. 14-. Pr<n'fnn leptorhachis nov. sp 33 



I iu. !.">. Leperditia symtnetrica nov. sp 37 



I IL: K). Print if in arctica nov. sp 39 



l''ig. 17. FniiHtniit <lissinn'lis nov. gen. & sp., the inrompli-lr lirad 3."> 



I i-. 18. two transverse sections across the head .... 



Fig. I '.'. thorax and pygidinin found in connection \\illi 



the head 36 



Fig. 2(1 I'lut /it-eras ellesmerelandi nov. sp '^- 



