Illustrations. 



Plate I. .Macropetaliclitys Sclieii new sj^ecii'S . ... ."iS 



— II. Plitonia rf. cylindricu Hall , great Coccostomorp]] Conn, l*.suniij}osleu.s 



arcticii's ]ie\v species . , . GO 



" III. Psuiiimosteus urcticiis new spn-., Drepanaspis Geriiiindenensis Si-hliit. (S 



— IV. Psammosteus maeandrinus Ag., Drepanaspis Gemimdein-iisis .Schliit. 64 



— V. I'samnjosleus iMjinplJcatiis new species, Psaramcisteiis ai'cliciis new 



species .... . (ii; 



— VI, Psamrausteus complicatns new species, Psammosteus niaeandriruis Ag. 68 



— ^ II. Bothriiilepis cf. liydrophila .Ag., Bothriolepis (?) sp., Bolhriolepis cana- 



densis Whit. .... 70 



— ^'I1I. (ilyptolcpis cf. paucidens Ag., Holoptyehius Scheii new speoies, Deii- 



drodont teeth, Rhizodont tooth . 7fi 



Text Figure 1. Macropetalichthys Scheii new sepcies 10 



— — "2. Macropetalichthys .Scheii new species . . . .14- 



— — 3. Geological sketch map of the south-western part of Ellesmere 



Land . . . 18 



— — 4. Section of "Bregneklnftcn' . . 19 



— — .5. Psammosteus complicatns new species 28 



— — (i. Drepanaspis Gemiindencnsis Schliit. 30 



— — 1. Drepanaspis Gcmiiudenensis Schliit. . . 32 



— — 8. Psammosteus maeandrinus Ag. . V,;^ 



