4 HINDE, ANXELID REMAINS FROM SILURIAN OF GOTLAND. 



waterfall near Wisby, of which you furnished me with great 

 numbers, and which, moreover, are met with thronghout Got- 

 land, are the remains of Annelids — tlie Jaws and cutaneous 

 coverings.» — Professor Angelin bad also figured two or three 

 examples of these minute jaws in one of tbe quarto plates of 

 fossils wbicb bad been prepared for tbe press, but unfortuna- 

 tely were never publisbed, so tbat tbere can be no doubt 

 tbat tbe objects wbicb be refers to in bis letter to Lindström 

 were really the remains of tbese animals. Prof. Lindström 

 writes me tbat be bas been unable to discover, amongst tbe 

 papers left by Angelin, any descriptions wbatcver relating 

 to tbese figured specimens. Tbe fact bowever is clearly estab- 

 lisbed, tbat to tbe late Prof. Angelin is due tbe credit of 

 being tbe first to recognize tbe true cbaracters of tbese small 

 fossil jaws, and it gives me great pleasure to be able to bring 

 forward publicly tbis fresb proof of tbe knowledge and discern- 

 raent of tbis able pala^ontologist. 



On reacbing Gotland I found, on my first searcbing expedi- 

 tion, some few portions of tbe minute black jaws in strata 

 of blue marly sbales exposed in tbe bed of a small stream just 

 outside tbe town of Wisby. Tbere were also traces of tbem in tbe 

 cliffs to tbe soutb of Wisby, but it was not until reacbing an 

 exposure of low sbelving rock on tbe flat sbores between 

 Klintebamn and Fröjel tbat 1 met witb tbem in any abun- 

 dance. Tbe rock at tbis place is a blueisb flaggy calcareous 

 sbale, frequently fissile. Tbe jaws were more abundant in 

 one particular tbin bed, wbicb contained besides numerous 

 examples of Beyricbia and otber species of Ostracoda, and a 

 well marked species of Cbonetes described and figured as Cb. 

 cingulata by Lindström in bis paper on tbe Bracbiopoda of 

 Gotland in Öfvers. Vet. Ak. Förbandi. 1860 p. 374 fig. 19. At 

 every stroke of tbe bammer, tbe fresb surfaces brougbt to 

 view, displayed one or more specimens of tbe jaws, and I spent 

 two days at tbis spöt in breaking up and examining tbe fissile 

 slabs strewn on tbe sbore, so as to secure as complete a col- 

 lection as possible of these minute fossils, for, though very 

 numerous, a large proportion became fractured in tbe process 

 of reducing the rocky matrix, and only occasionally could a 

 perfect specimen be obtained. Tbere is a striking resemblance 

 in tbe petrological cbaracters of tbese Fröjel beds and tbose 

 of the Cincinnati group in Canada, wbicb are similarly filled 



