PLATE iS 



Rensselaeria cf. stewarti Clarke 



(SW p 

 Pag. ?9 



1-3 Three views of internal casts of a shell very closely allied to 

 R. stewarti ol the Dalhousie fauna. All x \ l / 2 

 Locality. Near Soccatean point, Moosehead lake 



Rensselaeria diania Clarke 



4-6 Views of internal casts showing the characters of the species 

 Locality. .Misery stream, town of Sandwich 



Rensselaeria (Amphigenia) parva Clarke 



Page 81 



7, S Internal easts ol dorsal ami ventral valves, showing the normal a 

 very slender outline 

 Locality. romhegan point, Moosehead lake 

 g Umbonal portion of a dorsal cast, showing the impression of the per- 

 forated hinge plate, x 2 

 Locality. Stony brook, Moose river 

 10 Internal east ot a ventral valve 



Locality. Stony brook, Moose river 

 11-13 Casts of ventral valves showing approximate septa and perforated 

 hinge plate 

 Locality. Near Soccatean point, Moosehead lake 



Megalanteris cf. ovalis Hall 



I' ige 81 



14 Internal cast of dorsal valve 



15, 16 Opposite sides of an internal cast of both valves 

 Locality. Telos lake dam 



Spirifer perimele Clarke 



p -< -. 

 17, 18 A dorsal valve ami enlargement of its sculpture 

 19, 20 Sculpture easts of dorsal valves 

 2 1 1 nternal east of ventral \ alve 



Locality. Tomhegan point, Moosehead lake 



