PLATE XLIV. 



Fig. 1. — Sanguinolites variabilis. The type of the ovate variety, figured by 

 M'Coy, from the Carboniferous Limestone of Lowick. In the "Woodwardian 

 Museum, Cambridge. (Page 379.) 



Fig. 2. — AUorisma variabilis. The type of M'Coy's Sanguinolites variabilis. 

 Same locality and Collection. (Page 424.) 



Fig. 3. — Sanguinolites variabilis. A nearly perfect example from the Redes- 

 dale L'onstone. My Collection. (Page 379.) 



Fig. 4. — Sanguinolites variahili^. The anterior portion of a well-marked speci- 

 men, showing. Fig. 4 a, a view of the lunule, umbones, and escutcheon. Same 

 locality and Collection. (Page 379.) 



Fig. 5. — Sanguinolites variabilis. A young example. Same locality and Col- 

 lection. (Page 379.) 



Fig. 6. — Sanguinolites variabili!<. A medium-sized shell. Same locality and 

 Collection. (Page 379.) 



Fig. 7. — Sanguinolites variabilis. A shell with a very distinctly marked sur- 

 face ornament. Same locality and Collection. (Page 379.) 



Fig. 8. — Sanguinolites variabilis. A specimen showing a portion of the hinge- 

 plate. Same locality and Collection. (Page 379.) 



Fig. 9. — Sanguinolites plicaius. The type of M'Coy's S. ylicatus preserved in 

 the Griffith Collection, Museum of Science and Art, Dublin. (Page 387.) 



Fig. 10. — Solenopsis parallela. A cast from Lowick, in the Woodwardian 

 Museum, Cambridge. (Page 415.) 



Fig. 11. — Sanguinolites plicatus. The typeof Portlock's ^S*. jj?/cato. Preserved 

 in the Collection of the Geological Survey, Jermyn Street. (Page 387.) 



Fig. 12. — Sanguinolites plicatus. A testiferous example (specimen No. 7 

 referred to by Portlock under Sanguinolaria transversa, from shale, co. 

 Fermanagh) in which the fine concentric striee are more marked than the 

 secondary folds and grooves. In the Collection of the Geological Survey, 

 Jermyn Street. (Page 387.) 



Figs. 13, 14. — Sanguinolites plicatus. Two medium-sized examples from the 

 Carboniferous Limestone of Lowick, in the Woodwardian Museum, Cambridge. 

 (Page 387.) 



Fig. 15. — Sanguinolites plicatus. A fragment from the Upper Limestone 

 series of Orchard, near Glasgow, showing the exaggerated markings which 

 Portlock considered of specific value, exactly like his figure of S. undata. My 

 Collection. (Page 387.) 



