324 EXPLANATION OF PLATES. 



FIGURE PAGE 



6, 7. Lauria vincta watsoniana Pils. Madeira. 97302 . 92 



8, 10. Lauria vineta (Lowe). Madeira. 22863 91 



9, 11. Lauria vincta (Lowe). Young. 5787 91 



12. Lauria irrigua (Lowe). Madeira. 97287 92 



13, 14. Lauria loweana (Woll.). Madeira. 97292 93 



Plate 11. (Lauria) 



1, 2. Lauria loweana transiens (Woll.). 97291 96 



3. Lauria cassidula (Lowe). Madeira. B. Walker coll. 96 



4, 6. Lauria concinna (Lowe). Madeira. 97284 97 



5. Lauria concinna (Lowe), base of young shell. 128904. 97 



7. Lauria s. heterodon Pils. Madeira. 130428 101 



8, 9. Lauria laurinea (Lowe). Madeira. 97289 98 



10, 11, 12. Lauria sphinctostoma (Lowe). Madeira. 



128907, 4927 99 



13, 15, 16. Lauria s. arborea (Lowe). Madeira. 97301.. 100 



14. Lauria s. arborea (Lowe), young shell. Santa Cruz. 100 



Plate 12. (Lauria) 



1, 2. Lauria corneocostata (Woll.). Madeira. 5388 .. 108 



3, 4, 5. Lauria corneocostata (Woll.). Madeira. 87305. 108 



6, 7, 8. Lauria relevata (Woll.). Madeira. 97309 .... 110 



9. Lauria c. resticula (Woll.). From Wollaston. 97306.109 



10. Lauria c. resticula (Woll.). Brocton-Tomlin coll. . 109 



11. Lauria sphinctostoma simulator Pils. Type. 5611 . . 101 



12. Lauria ferraria (Lowe). Porto Santo. 97307 110 



13. 14. Lauria monticola (Lowe). Porto Santo. 128903. 112 



15. Lauria monticola pumilio (Lowe). Porto Santo. 



128903 113 



Plate 13. (Lauria) 



1, 2, 3. Lauria wollastoni (Lowe) . Canical. 114971 . . 102 



4, 5. Lauria laevigata (Lowe). Madeira. 5377 103 



6, 7, 8. Lauria recta (Lowe). Madeira. 97296, 5382 . . 104 

 9. Lauria r. macilenta (Lowe). Grand Deserta. 97294. 104 



10, 11. Lauria fusca (Lowe). S. Vicente, Madeira. 140011 105 

 12-15. Lauria millegrana (Lowe) . Madeira. 128902 . . 106 



Plate 14. (Lauria) 



1. Lauria cassida (Lowe). Madeira. 97281 88 



2. Lauria calathiscus (Lowe). De Facho, P. Santo. 



130113 113 



3. Lauria calathiscus (Lowe). Porto Santo. 97304 .. 113 



4. 5. Lauria gibba (Lowe). Madeira. 114986 115 



