ILLUSTEATIONS OF THE FAUNA OF THE ST. JOHN GEOUP. 109 



Fig. O.—Camcrellaparva, Bill. ?— <(. Dorsal valve— t. Mould of (dorsal ?) showing scars of muscles, and vascular 



lines. Both figure.s magnified I — From Div. 3a at Navy Island. Seep. 103. 

 Fig. 10.— Sti/liola prhnœra n. Bp.—a, Tiece of shale with a group of shells. Natural size — b, A single shell 



enlarged { — From Div. id at the Suspension Bridge. See p. 104. 

 Fig. 11. — Creseis mimita n. sp. n. A shell magnified 'i — b. A flattened shell, showing internal diaphragmai?) 



Mag. f — c. A portion of a shell enlarged to show one of the divisions and the minute engirdling striae of 



growth. Mag. Y— From Div. 3d Suspension Bridge. See p. 105. 

 Fig. 12. — Creseis corrugata n. sp. — a. A shell enlarged. Mag. ; — b. Portion of the same further magnified ('/) — 



From Div. 3d at Suspension Bridge. See p. 105. 

 Fig. 13. — Orthoceras cf. PWamK.s, Bill. — a. Dis' al part of the shell — 6. Part of another shell. Both natural size — 



From Div. 3d at Suspension Bridge. See p. 106. 

 Fig. 14. — Orthoceras c{. Catulus, Bill.— a. Part of a shell showing the surface — b. Longitudinal section of another 



shell, showing the chambers and siphuncle— c. Transverse section showing the siphuncle — d. Flattened 



example of a small shell- All natural size — From Div. 3d at the Suspension Bridge. See p. 106. 

 Fig. 15. — Parabolinella posthuma n. sp. — a. Middle piece of the head shield of a young individual. Mag. \ — 6- Movable 



cheek. Mag. | — From Div. 3d Suspension Bridge. See p. 107. 

 Fig. 16. — Cyclognathw rotundifrons n. sp. — a. Middle piece of the head shield and a part of the thorax. Mag. | — 



b. IMovable cheek. Mag. î — From Div. 3d at the Suspension Bridge. See p. 107. 



