22 



Explanation of Plate 1. 

 All figures natural size. 

 Pig. 1. Chi one ellsmerensi s , n. sp . 

 Pig. 2. Same as fig. 1., showing hinge. 



Pig. 3. Cancel! aria t r i t onidae t Gabb, var. angulata, new var. 

 ^ig 4 fflione f e r n ando en s i s , n. sp. anterior view. 

 Pig. 5. Same as fig. 4, view of left valve. 



Explanation of Plate 2. 

 All figures natural size. 

 Pig. 1. Gyrineuia ellsmerensis^ n, sp. 

 Pig. 2. Cancellaria _el leaner en si s , n. sp. 

 Pig. 3 Turris el lamer en sis, n. sp. 

 Fi S 4 Tu r r i s e 1 1 sme r e n si s , n. sp. side view. 

 Pig. 5 PAC^.S no di f erus , Ga"bb. 

 Pig. 6. Turris f e rn ando en s i s , n. sp. 

 Pig. 7- Belli n ar achi nu s exc en t r i cu s , Esch. var. minor, ri. var. 



Pig. 8. Pious no di f e ru s t Gabb. larger specimen showing the 



more prominent nodes and angulation. 

 Pig. 9 A^^J^LSi 8 . f ernando ensjls , Pack. 



