IN EASTERN CANADA. AMI. 169 



LAMELLIBRANCHIATA. 



1. Anthiacomya elongata, Dawson. 



2. " obtusa, Dawson. 



Insecta. 



1. " A neuropteroid insect allied to Miamia Bronsoni " 

 determined by Prof. Charles Brongniart, of the 

 Mus6um d'histoire Naturelle, Paris, France. 



Vermes. 



I. Spirorbis Eriaia, Dawson, attached to leaves of Cor- 



daites Robbii, Dawson. 



Harrington River District. The shales and sandstones, 

 from which the fossils of the Riversdale formation were obtained, 

 occur along the boundary of the counties of Colchester and 

 Cumberland the strike of the strata being generally across the 

 direction of the stream. As pointed out by Mr. H. Fletcher, 

 this locality proved to be particularly rich in fossils. 



PLANTS. 



1. Arterophyllites acicularis, Dawson. 



2. Calamites, sp. 



3. Sphenopteris dilatata, Dawson. 



4. " Harttii, Dawson. 



5. " splendens, Dawson. 



6. " marginata, Dawson. 



7. " sp. 



8. Aneimites valida, Dawson. 



9. Adiantites ? or Archseopteris, sp. 

 10. Neuropteris, sp. 



II. Alethopteris discrepans, Dawson, ( = Alethopteris decur- 



rens, Artis, sp.) 



12. Cyperites-like leaves. 



13. Cardiocarpum cornutum, Dawson. 



14. Psilophytum ? glabrum, Dawson. 



Animalia. 

 BATRACHIA. 



1. Hylopus Logani, Dawson. 



