138 



2. Tropidonotus distalis Holb. Found throughout the United 

 States, and by Agassiz near Lake Superior. Talien by Prof. 

 Wyman and myself in Nova Scotia. 



3. Rana fontinalis Le Conte. Thus far Maine has been its 

 Northern limit. Found by us in Nova Scotia. 



4. R. Jialecina Kah. Has been taken in Massachusetts, — 

 by us in Nova Scotia. 



5. R. sylvatica Le Conte. Taken in Massachusetts, — by 

 us in Nova Scotia. 



6. HyJodes Pickeringii Holb. In Massachusetts, and by 

 Thompson in Vermont. Found by me among the White Moun- 

 tains in New Hampshire, and in Maine, near Saco. 



7. Bufo Americanus Le Conte. By Holbrook, in the inte- 

 rior of Maine, and by Agassiz at Lake Superior. I have taken 

 it at Eastport, Me., and in Nova Scotia. 



8. Notophthalnms miniatus Raf. (Sal. symmetrica Harlan.) 

 Found in Vermont and Massachusetts, and by my father in 

 Maine. By me at the White Mountains. 



9. PletJwdon erythronotus Baird. At Lake Superior, by 

 Agassiz, and in Massachusetts. By Dr. Wyman and myself in 

 Nova Scotia. By myself at White Mountains. 



Dr. C. T. Jackson read descriptions of five new species 

 of fossil fish, of the genus Palaeoniscus, and notices of 

 several specimens of fossil plants, from the shales of the 

 coal formation at Hillsboro', N. B., and exhibited the spe- 

 cimens. He also showed specimens of bituminous coal 

 from the same locality, with a highly polished surface, 

 resembling sticks of black sealingwax. 



Pal(2oniscus Alherti. This fish is the first one that was dis- 

 covered by me at the Albert mine. 



Description. — Fish, four diameters of its body long; head, 

 obtuse or blunt, as if obliquely compressed on upper and front 

 part ; whole length, 2^^ inches ; width, in middle of body, y^/g- 

 inch ; jins^ one dorsal, opposite anal, small triangular, -f^ of an 

 inch at base, jointed, drooping, as if the fish was dead before it 

 was inclosed in the mud, (now shale.) Anal., small, triangular, 

 a little larger than dorsal ; Pectoral., small, compressed into mass 



