ge 
PLATE XVII 
1—6. Balanus albus n. sp. 
Labrum and right-hand palpus; magnified 30 diameters. 
Mandible; magnified 30 diameters. 
Maxilla; magnified 30 diameters. 
Edge of maxilla with spines; magnified 64 diameters. 
Outer maxillae; magnified 30 diameters. 
Cirrus of 6th pair, 26th and 27th segments; magnified 44,5 diameters. 
Smaller specimen, lateral view; magnified 4,5 diameters. 
7—13. Balanus maculatus n. sp. 
Bigs ar. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Iie, 7 
Biggs: 
Fig. 0: 
Big. 10: 
Fig. 11. 
Weikegs Wile 
Bioesuze 
Bio. 13% 
14—19 
Fig. 14. 
Big. a5. 
ice m0: 
Fig. 17. 
Bigs sto. 
Fig. 18*. 
Fig. 19. 
Animal, lateral view; magnified 3 diameters. 
a and 6, scutum and tergum, internal view; magnified 10 diameters. 
c and d, scutum and tergum, lateral view; magnified 10 diameters. 
Labrum, with right-hand palpus; magnified 44,5 diameters. 
Mandible; magnified 44,5 diameters. 
Maxilla; magnified 44,5 diameters. 
Edge of maxilla with spines; magnified 64 diameters. 
Outer maxillae; magnified 44,5 diameters. 
Cirrus of 6th pair, one of the middle segments; magnified 64 diameters. 
. Balanus tenuis Hoek. 
Animal, attached to part of shell of larger specimen; magnified 3,2 diameters. 
a and 8, scutum and tergum, internal view; magnified 10 diameters. 
c and d, scutum and tergum, external view; magnified 10 diameters. 
Labrum, with right-hand palpus; magnified 64 diameters. 
Mandible; magnified 64 diameters. 
Maxilla; magnified 64 diameters. 
Edge of maxilla, with spines; magnified 206,5 diameters. 
Cirrus of 6th pair, one of the middle segments; magnified 64 diameters. 
