PLATE XVI 



Fig. I — 4. Balanus amaryllis Danvin. 



Fig. 1. Outer maxillae; magnified 30 diameters. 



Fig. 2. Cirrus of second pair; magnified 14 diameters. 



Fig. 3. Cirrus of third pair; magnified 14 diameters. 



Fig. 4. Cirrus of sixth pair, two segments about the middle of the cirrus; magnified 44,5 diameters. 



Fig. 5 — 11. Balanus biinae n. sp. 



Fig. 5. Animal, lateral view; magnified 4 diameters. 



a and b, scutum and tergum, internal view; magnified 8 diameters. 



c and d, scutum and tergum, external view ; magnified 8 diameters. 



Labrum with palpi; magnified 44,5 diameters. 



Mandible; magnified 44,5 diameters. 



Maxilla ; magnified 44,5 diameters. 



Maxilla, edge with spines; magnified 144 diameters. 



Outer maxillae; magnified 44,5 diameters. 



Cirrus of sixth pair, two of the middle segments; magnified 64 diameters. 



nis albus n. sp. 

 Fig. 12. Animal, lateral view; magnified 3,2 diameters. 



Fig. 13. a and b, scutum and tergum, internal view; magnified 4,6 diameters. 

 c and d, scutum and tergum, external view; magnified 4,2 diameters. 



