PLATE XLVI. 



Fig. 1. — Sangumolites strlatm. A cast of both valves. From Knockliill 

 Quarry, Fife. In the Collection of the Greological Survey of Scotland. (Page 

 401.) 



Fig. 2. — SangidnoUtes striatus. A specimen of both valves, full-grown, with 

 the test preserved. From Skolieburn, Fife. Same Collection. (Page 401.) 



Fig. 3. — Sanguinolites liuurians. An almost perfect specimen. In the 

 Leckenby Collection, Woodwardian Museum, Cambridge. (Page 402.) 



Fig. 4. — Sanguinolites luxurians. A left valve. From the Carboniferous 

 Limestone of Lisbane, co. Limerick. In the Collection of the Geological Survey 

 of Ireland. (Page 402.) 



Fig. 5. — Sanguinolites laxurians. A cast of the left valve. From the 

 Limestone of Ardfodien, co. Kildare. Same Collection. (Page 402.) 



Fig. 6. — Sanguinolites abdenensis. A right valve showing normal convexity. 

 From Corrieburn, Kilsyth. In the Collection of the Geological Survey of 

 Scotland. (Page 408.) 



Fig. 7. — Sanguinolites abdenensis. A left valve. From Corrieburn, near 

 Kilsyth, incomplete posteriorly. Same Collection. (Page 408.) 



Fig. 8. — SangidnoUtes abdenensis. A right valve. From Abden. Same 

 Collection. (Page 408.) 



Fig. 9. — Sanguinolites abdenensis. A left valve. Same locality and Collection • 

 (Page 408.) 



Fig. 10. — Sanguinolites abdenensis. A left valve. (The type specimen figured 

 by R. Etheridge, jun.) Same locality and Collection. (Page 408.) 



Fig. 11. — Sanguinolites abdenensis. A right valve. From Larriston burn, 

 Eoxburghshire. Same Collection. (Page 408.) 



Fig. 12. — Sanguinolites roxburgensis. A right valve. From Blackburn, New 

 Castleton, Roxburghshire. In the Collection of the Manchester Museum, Owens 

 College. (Page 406.) 



Fig. 13. — Sanguinolites roxburgensis. A right valve. Same slab. Same 

 Collection. (Page 406.) 



Fig. 14. — Sanguinolites ovalls. A cast of the interior of the left valve. From 

 Holt Head. My Collection. (Page 411.) 



Fig. 15. — Sanguinolites ovalis. A rather crushed right valve. Same locality 

 and Collection. (Page 411.) 



Fig. 16. — Sanguinolites ovalis. The cast of the anterior end of the left valve, 

 showing the anterior adductor muscle-scar. Same locality and Collection. 

 (Page 411.) 



Fig. 17. — Sanguinolites ovalis. An almost complete example of the right valve 

 with the test preserved. Same locality and Collection. (Page 411.) 



