PLATE XV 



Fig. [■ — 8. Ealanus alatiis n. sp. 



Fig. i. Animal, 'ateral view; magnified 10,5 diameters. 



Fig. 2. a and b, tergum and scutum, united, external view; magnified 13 diameters. 

 c, tergum and d, scutum, internal view; magnified 13 diameters. 

 Transverse section of carina; magnified 44,5 diameters. 

 Labrum, with right-hand palpus, external view; magnified 42 diameters. 

 Left-hand palpus, external view; magnified 144 diameters. 

 Mandible; magnified 144 diameters. 

 6 and 6*, Right- and left-hand maxilla ; magnified 144 diameters. 



Fifth segment of longer ramus of third cirrus; magnified 206,5 diameters. 

 Middle segment of sixth cirrus; magnified 206,5 diameters. 



Fig. 9 — 16. Balanus minutus n. sp. 



Fig. 9. Animal, lateral view; magnified 7 diameters. 



Fig. 10. a. scutum internal view; magnified 14,5 diameters. 



b. scutum external view; magnified 14,5 diameters. 



c. tergum external view; magnified 14,5 diameters. 



Fig. 11. Labrum with right-hand palpus, external view; magnified 64 diameters. 

 Fi<j. 12 



Fig- 13 



Fig. 14 



Fig. 15 



Figr. 16 



Mandible ; magnified 64 diameters. 



Maxilla; magnified 206,5 diameters. 



Outer maxillae, outer lobe ; magnified 64 diameters. 



Third cirrus, fourth segment; magnified 206,5 diameters. 



Sixth cirrus, middle segment ; magnified 64 diameters. 



Fig- 17 — 21. Balanus amaryllis Darw. 



Fig. 17. a, scutum, b, tergum, internal view; magnified 5 diameters. 

 c, scutum, d, tergum, external view ; magnified 5 diameters. 

 Fig. 18. Labrum, with right-hand palpus, external view; magnified ^o diameters. 

 Fig. 19. Mandible; magnified 30 diameters. 

 Fig. 20. Maxilla; magnified 30 diameters. 

 Fig. 21. First cirrus; magnified 14 centimeters. 



