Fig. 
ga 
PLATE XI 
1—6. Verruca cassis n. sp. 
Fig. 
Fig. 
Fig. 
Fig. 
7—13. Verruca grex n. sp. 
Fig. 
I. 
2 
a 
4. 
4a. 
6. 
f°: 
8. 
Q. 
10. 
Il. 
12. 
lise 
Moveable scutum; magnified 16 diameters. 
Moveable tergum; magnified 16 diameters. 
Rostrum; magnified 16 diameters. 
Carina, external view; magnified 16 diameters. 
Carina, internal view; magnified 16 diameters. 
Fixed tergum; magnified 16 diameters. 
Fixed scutum; magnified 16 diameters. 
Group of specimens; magnified 3 diameters. 
Specimen, seen from the side of the moveable valves; magnified 7,6 diameters. 
Specimen, seen from the side of the fixed valves; magnified 7,6 diameters. 
Moveable scutum; magnified 16 diameters. 
Moveable tergum; magnified 16 diameters. 
Fixed scutum; magnified 16 diameters. 
Fixed tergum; magnified 16 diameters. 
Verruca conchula n. sp. 
14. 
15. 
Specimen, seen from the side of the moveable valves; magnified t1 diameters. 
Specimen, seen from the side of the fixed valves; magnified 11 diameters. #. part of 
membranous basis; 4. part of the outer surface of the object to which the shell was 
attached; o. part of the ovary. 
Verruca conchula var. minor n. var. 
16. 
We 
Shell, seen from the side of the moveable valves; magnified ro diameters. 
Shell, seen from the side of the fixed valves; magnified 10 diameters. 
